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Postgres FD Implementation
Commit 3f59cc08 authored by Peter Mount's avatar Peter Mount
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Minor bug fixes. Replaced DateStyle support with ISO.

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src/interfaces/jdbc/CHANGELOG
View file @ 3f59cc08
Mon May 17 23:40:00 BST 1999
- PG_Stream.close() now attempts to send the close connection message
to the backend before closing the streams
- Added batch support in the JDBC2, supplied by Yutaka Tanida <yutaka@marin.or.jp>
- Removed the old datestyle code. Now the driver uses only ISO.
- Removed some files in the postgresql directory still in CVS that were
moved since 6.4.x (DatabaseMetaData.java PreparedStatement.java
ResultSetMetaData.java Statement.java)
- Internationalisation of the error messages is partially implemented, however
it's not enabled as it only works when the jar file is _not_ used, and
work needs to be done.
Sun Apr 11 17:00:00 BST 1999
- getUpdateCount() now returns the actual update count (before it
simply returned 1 for everything).
......
src/interfaces/jdbc/postgresql/Connection.java
View file @ 3f59cc08
......@@ -10,7 +10,7 @@ import postgresql.largeobject.*;
import postgresql.util.*;
/**
* $Id: Connection.java,v 1.15 1999/04/11 18:03:00 peter Exp $
* $Id: Connection.java,v 1.16 1999/05/17 22:43:23 peter Exp $
*
* This abstract class is used by postgresql.Driver to open either the JDBC1 or
* JDBC2 versions of the Connection class.
......@@ -67,38 +67,6 @@ public abstract class Connection
// be across all connections, which could be to different backends.
public Hashtable fieldCache = new Hashtable();
/**
* This is the current date style of the backend
*/
public int currentDateStyle;
/**
* This defines the formats for dates, according to the various date styles.
*
* <p>There are two strings for each entry. The first is the string to search
* for in the datestyle message, and the second the format to use.
*
* <p>To add a new date style, work out the format. Then with psql running
* in the date style you wish to add, type: show datestyle;
*
* <p>eg:
* <br><pre>
* => show datestyle;
* NOTICE: Datestyle is SQL with European conventions
* ^^^^^^^^^^^^^^^^^
* </pre>The marked part of the string is the first string below. The second
* is your format. If a style (like ISO) ignores the US/European variants,
* then you can ignore the "with" part of the string.
*/
protected static final String dateStyles[] = {
"Postgres with European", "dd-MM-yyyy",
"Postgres with US", "MM-dd-yyyy",
"ISO", "yyyy-MM-dd",
"SQL with European", "dd/MM/yyyy",
"SQL with US", "MM/dd/yyyy",
"German", "dd.MM.yyyy"
};
// Now handle notices as warnings, so things like "show" now work
public SQLWarning firstWarning = null;
......@@ -242,22 +210,24 @@ public abstract class Connection
throw new SQLException("Connection failed: " + e.toString());
}
// Find out the date style by issuing the SQL: show datestyle
// This actually issues a warning, and our own warning handling
// code handles this itself.
//
// Also, this query replaced the NULL query issued to test the
// connection.
//
// Originally we issued a SHOW DATESTYLE statement to find the databases default
// datestyle. However, this caused some problems with timestamps, so in 6.5, we
// went the way of ODBC, and set the connection to ISO.
//
// This may cause some clients to break when they assume anything other than ISO,
// but then - they should be using the proper methods ;-)
//
//
firstWarning = null;
ExecSQL("show datestyle");
// Initialise object handling
initObjectTypes();
// Mark the connection as ok, and cleanup
ExecSQL("set datestyle to 'ISO'");
// Initialise object handling
initObjectTypes();
// Mark the connection as ok, and cleanup
firstWarning = null;
PG_STATUS = CONNECTION_OK;
PG_STATUS = CONNECTION_OK;
}
// These methods used to be in the main Connection implementation. As they
......@@ -280,23 +250,18 @@ public abstract class Connection
// Now check for some specific messages
// This is obsolete in 6.5, but I've left it in here so if we need to use this
// technique again, we'll know where to place it.
//
// This is generated by the SQL "show datestyle"
if(msg.startsWith("NOTICE:") && msg.indexOf("DateStyle")>0) {
// 13 is the length off "DateStyle is "
msg = msg.substring(msg.indexOf("DateStyle is ")+13);
for(int i=0;i<dateStyles.length;i+=2)
if(msg.startsWith(dateStyles[i]))
currentDateStyle=i+1; // this is the index of the format
}
}
/**
* @return the date format for the current date style of the backend
*/
public String getDateStyle()
{
return dateStyles[currentDateStyle];
//if(msg.startsWith("NOTICE:") && msg.indexOf("DateStyle")>0) {
//// 13 is the length off "DateStyle is "
//msg = msg.substring(msg.indexOf("DateStyle is ")+13);
//
//for(int i=0;i<dateStyles.length;i+=2)
//if(msg.startsWith(dateStyles[i]))
//currentDateStyle=i+1; // this is the index of the format
//}
}
/**
......
src/interfaces/jdbc/postgresql/DatabaseMetaData.java deleted 100644 → 0
View file @ c2b75c83
package postgresql;
import java.sql.*;
import java.util.*;
/**
* This class provides information about the database as a whole.
*
* <p>Many of the methods here return lists of information in ResultSets. You
* can use the normal ResultSet methods such as getString and getInt to
* retrieve the data from these ResultSets. If a given form of metadata is
* not available, these methods should throw a SQLException.
*
* <p>Some of these methods take arguments that are String patterns. These
* arguments all have names such as fooPattern. Within a pattern String,
* "%" means match any substring of 0 or more characters, and "_" means
* match any one character. Only metadata entries matching the search
* pattern are returned. if a search pattern argument is set to a null
* ref, it means that argument's criteria should be dropped from the
* search.
*
* <p>A SQLException will be throws if a driver does not support a meta
* data method. In the case of methods that return a ResultSet, either
* a ResultSet (which may be empty) is returned or a SQLException is
* thrown.
*
* @see java.sql.DatabaseMetaData
*/
public class DatabaseMetaData implements java.sql.DatabaseMetaData
{
Connection connection; // The connection association
// These define various OID's. Hopefully they will stay constant.
static final int iVarcharOid = 1043; // OID for varchar
static final int iBoolOid = 16; // OID for bool
static final int iInt2Oid = 21; // OID for int2
static final int iInt4Oid = 23; // OID for int4
static final int VARHDRSZ = 4; // length for int4
// This is a default value for remarks
private static final byte defaultRemarks[]="no remarks".getBytes();
public DatabaseMetaData(Connection conn)
{
this.connection = conn;
}
/**
* Can all the procedures returned by getProcedures be called
* by the current user?
*
* @return true if so
* @exception SQLException if a database access error occurs
*/
public boolean allProceduresAreCallable() throws SQLException
{
return true; // For now...
}
/**
* Can all the tables returned by getTable be SELECTed by
* the current user?
*
* @return true if so
* @exception SQLException if a database access error occurs
*/
public boolean allTablesAreSelectable() throws SQLException
{
return true; // For now...
}
/**
* What is the URL for this database?
*
* @return the url or null if it cannott be generated
* @exception SQLException if a database access error occurs
*/
public String getURL() throws SQLException
{
return connection.getURL();
}
/**
* What is our user name as known to the database?
*
* @return our database user name
* @exception SQLException if a database access error occurs
*/
public String getUserName() throws SQLException
{
return connection.getUserName();
}
/**
* Is the database in read-only mode?
*
* @return true if so
* @exception SQLException if a database access error occurs
*/
public boolean isReadOnly() throws SQLException
{
return connection.isReadOnly();
}
/**
* Are NULL values sorted high?
*
* @return true if so
* @exception SQLException if a database access error occurs
*/
public boolean nullsAreSortedHigh() throws SQLException
{
return false;
}
/**
* Are NULL values sorted low?
*
* @return true if so
* @exception SQLException if a database access error occurs
*/
public boolean nullsAreSortedLow() throws SQLException
{
return false;
}
/**
* Are NULL values sorted at the start regardless of sort order?
*
* @return true if so
* @exception SQLException if a database access error occurs
*/
public boolean nullsAreSortedAtStart() throws SQLException
{
return false;
}
/**
* Are NULL values sorted at the end regardless of sort order?
*
* @return true if so
* @exception SQLException if a database access error occurs
*/
public boolean nullsAreSortedAtEnd() throws SQLException
{
return true;
}
/**
* What is the name of this database product - we hope that it is
* PostgreSQL, so we return that explicitly.
*
* @return the database product name
* @exception SQLException if a database access error occurs
*/
public String getDatabaseProductName() throws SQLException
{
return new String("PostgreSQL");
}
/**
* What is the version of this database product.
*
* <p>Note that PostgreSQL 6.3 has a system catalog called pg_version -
* however, select * from pg_version on any database retrieves
* no rows.
*
* <p>For now, we will return the version 6.3 (in the hope that we change
* this driver as often as we change the database)
*
* @return the database version
* @exception SQLException if a database access error occurs
*/
public String getDatabaseProductVersion() throws SQLException
{
return ("6.4");
}
/**
* What is the name of this JDBC driver? If we don't know this
* we are doing something wrong!
*
* @return the JDBC driver name
* @exception SQLException why?
*/
public String getDriverName() throws SQLException
{
return new String("PostgreSQL Native Driver");
}
/**
* What is the version string of this JDBC driver? Again, this is
* static.
*
* @return the JDBC driver name.
* @exception SQLException why?
*/
public String getDriverVersion() throws SQLException
{
return new String(Integer.toString(connection.this_driver.getMajorVersion())+"."+Integer.toString(connection.this_driver.getMinorVersion()));
}
/**
* What is this JDBC driver's major version number?
*
* @return the JDBC driver major version
*/
public int getDriverMajorVersion()
{
return connection.this_driver.getMajorVersion();
}
/**
* What is this JDBC driver's minor version number?
*
* @return the JDBC driver minor version
*/
public int getDriverMinorVersion()
{
return connection.this_driver.getMinorVersion();
}
/**
* Does the database store tables in a local file? No - it
* stores them in a file on the server.
*
* @return true if so
* @exception SQLException if a database access error occurs
*/
public boolean usesLocalFiles() throws SQLException
{
return false;
}
/**
* Does the database use a file for each table? Well, not really,
* since it doesnt use local files.
*
* @return true if so
* @exception SQLException if a database access error occurs
*/
public boolean usesLocalFilePerTable() throws SQLException
{
return false;
}
/**
* Does the database treat mixed case unquoted SQL identifiers
* as case sensitive and as a result store them in mixed case?
* A JDBC-Compliant driver will always return false.
*
* <p>Predicament - what do they mean by "SQL identifiers" - if it
* means the names of the tables and columns, then the answers
* given below are correct - otherwise I don't know.
*
* @return true if so
* @exception SQLException if a database access error occurs
*/
public boolean supportsMixedCaseIdentifiers() throws SQLException
{
return false;
}
/**
* Does the database treat mixed case unquoted SQL identifiers as
* case insensitive and store them in upper case?
*
* @return true if so
*/
public boolean storesUpperCaseIdentifiers() throws SQLException
{
return false;
}
/**
* Does the database treat mixed case unquoted SQL identifiers as
* case insensitive and store them in lower case?
*
* @return true if so
*/
public boolean storesLowerCaseIdentifiers() throws SQLException
{
return true;
}
/**
* Does the database treat mixed case unquoted SQL identifiers as
* case insensitive and store them in mixed case?
*
* @return true if so
*/
public boolean storesMixedCaseIdentifiers() throws SQLException
{
return false;
}
/**
* Does the database treat mixed case quoted SQL identifiers as
* case sensitive and as a result store them in mixed case? A
* JDBC compliant driver will always return true.
*
* <p>Predicament - what do they mean by "SQL identifiers" - if it
* means the names of the tables and columns, then the answers
* given below are correct - otherwise I don't know.
*
* @return true if so
* @exception SQLException if a database access error occurs
*/
public boolean supportsMixedCaseQuotedIdentifiers() throws SQLException
{
return true;
}
/**
* Does the database treat mixed case quoted SQL identifiers as
* case insensitive and store them in upper case?
*
* @return true if so
*/
public boolean storesUpperCaseQuotedIdentifiers() throws SQLException
{
return false;
}
/**
* Does the database treat mixed case quoted SQL identifiers as case
* insensitive and store them in lower case?
*
* @return true if so
*/
public boolean storesLowerCaseQuotedIdentifiers() throws SQLException
{
return false;
}
/**
* Does the database treat mixed case quoted SQL identifiers as case
* insensitive and store them in mixed case?
*
* @return true if so
*/
public boolean storesMixedCaseQuotedIdentifiers() throws SQLException
{
return false;
}
/**
* What is the string used to quote SQL identifiers? This returns
* a space if identifier quoting isn't supported. A JDBC Compliant
* driver will always use a double quote character.
*
* <p>If an SQL identifier is a table name, column name, etc. then
* we do not support it.
*
* @return the quoting string
* @exception SQLException if a database access error occurs
*/
public String getIdentifierQuoteString() throws SQLException
{
return null;
}
/**
* Get a comma separated list of all a database's SQL keywords that
* are NOT also SQL92 keywords.
*
* <p>Within PostgreSQL, the keywords are found in
* src/backend/parser/keywords.c
*
* <p>For SQL Keywords, I took the list provided at
* <a href="http://web.dementia.org/~shadow/sql/sql3bnf.sep93.txt">
* http://web.dementia.org/~shadow/sql/sql3bnf.sep93.txt</a>
* which is for SQL3, not SQL-92, but it is close enough for
* this purpose.
*
* @return a comma separated list of keywords we use
* @exception SQLException if a database access error occurs
*/
public String getSQLKeywords() throws SQLException
{
return new String("abort,acl,add,aggregate,append,archive,arch_store,backward,binary,change,cluster,copy,database,delimiters,do,extend,explain,forward,heavy,index,inherits,isnull,light,listen,load,merge,nothing,notify,notnull,oids,purge,rename,replace,retrieve,returns,rule,recipe,setof,stdin,stdout,store,vacuum,verbose,version");
}
public String getNumericFunctions() throws SQLException
{
// XXX-Not Implemented
return "";
}
public String getStringFunctions() throws SQLException
{
// XXX-Not Implemented
return "";
}
public String getSystemFunctions() throws SQLException
{
// XXX-Not Implemented
return "";
}
public String getTimeDateFunctions() throws SQLException
{
// XXX-Not Implemented
return "";
}
/**
* This is the string that can be used to escape '_' and '%' in
* a search string pattern style catalog search parameters
*
* @return the string used to escape wildcard characters
* @exception SQLException if a database access error occurs
*/
public String getSearchStringEscape() throws SQLException
{
return new String("\\");
}
/**
* Get all the "extra" characters that can bew used in unquoted
* identifier names (those beyond a-zA-Z0-9 and _)
*
* <p>From the file src/backend/parser/scan.l, an identifier is
* {letter}{letter_or_digit} which makes it just those listed
* above.
*
* @return a string containing the extra characters
* @exception SQLException if a database access error occurs
*/
public String getExtraNameCharacters() throws SQLException
{
return new String("");
}
/**
* Is "ALTER TABLE" with an add column supported?
* Yes for PostgreSQL 6.1
*
* @return true if so
* @exception SQLException if a database access error occurs
*/
public boolean supportsAlterTableWithAddColumn() throws SQLException
{
return true;
}
/**
* Is "ALTER TABLE" with a drop column supported?
* Yes for PostgreSQL 6.1
*
* @return true if so
* @exception SQLException if a database access error occurs
*/
public boolean supportsAlterTableWithDropColumn() throws SQLException
{
return true;
}
/**
* Is column aliasing supported?
*
* <p>If so, the SQL AS clause can be used to provide names for
* computed columns or to provide alias names for columns as
* required. A JDBC Compliant driver always returns true.
*
* <p>e.g.
*
* <br><pre>
* select count(C) as C_COUNT from T group by C;
*
* </pre><br>
* should return a column named as C_COUNT instead of count(C)
*
* @return true if so
* @exception SQLException if a database access error occurs
*/
public boolean supportsColumnAliasing() throws SQLException
{
return true;
}
/**
* Are concatenations between NULL and non-NULL values NULL? A
* JDBC Compliant driver always returns true
*
* @return true if so
* @exception SQLException if a database access error occurs
*/
public boolean nullPlusNonNullIsNull() throws SQLException
{
return true;
}
public boolean supportsConvert() throws SQLException
{
// XXX-Not Implemented
return false;
}
public boolean supportsConvert(int fromType, int toType) throws SQLException
{
// XXX-Not Implemented
return false;
}
public boolean supportsTableCorrelationNames() throws SQLException
{
// XXX-Not Implemented
return false;
}
public boolean supportsDifferentTableCorrelationNames() throws SQLException
{
// XXX-Not Implemented
return false;
}
/**
* Are expressions in "ORCER BY" lists supported?
*
* <br>e.g. select * from t order by a + b;
*
* @return true if so
* @exception SQLException if a database access error occurs
*/
public boolean supportsExpressionsInOrderBy() throws SQLException
{
return true;
}
/**
* Can an "ORDER BY" clause use columns not in the SELECT?
* I checked it, and you can't.
*
* @return true if so
* @exception SQLException if a database access error occurs
*/
public boolean supportsOrderByUnrelated() throws SQLException
{
return false;
}
/**
* Is some form of "GROUP BY" clause supported?
* I checked it, and yes it is.
*
* @return true if so
* @exception SQLException if a database access error occurs
*/
public boolean supportsGroupBy() throws SQLException
{
return true;
}
/**
* Can a "GROUP BY" clause use columns not in the SELECT?
* I checked it - it seems to allow it
*
* @return true if so
* @exception SQLException if a database access error occurs
*/
public boolean supportsGroupByUnrelated() throws SQLException
{
return true;
}
/**
* Can a "GROUP BY" clause add columns not in the SELECT provided
* it specifies all the columns in the SELECT? Does anyone actually
* understand what they mean here?
*
* @return true if so
* @exception SQLException if a database access error occurs
*/
public boolean supportsGroupByBeyondSelect() throws SQLException
{
return true; // For now...
}
/**
* Is the escape character in "LIKE" clauses supported? A
* JDBC compliant driver always returns true.
*
* @return true if so
* @exception SQLException if a database access error occurs
*/
public boolean supportsLikeEscapeClause() throws SQLException
{
return true;
}
/**
* Are multiple ResultSets from a single execute supported?
* Well, I implemented it, but I dont think this is possible from
* the back ends point of view.
*
* @return true if so
* @exception SQLException if a database access error occurs
*/
public boolean supportsMultipleResultSets() throws SQLException
{
return false;
}
/**
* Can we have multiple transactions open at once (on different
* connections?)
* I guess we can have, since Im relying on it.
*
* @return true if so
* @exception SQLException if a database access error occurs
*/
public boolean supportsMultipleTransactions() throws SQLException
{
return true;
}
/**
* Can columns be defined as non-nullable. A JDBC Compliant driver
* always returns true.
*
* <p>This changed from false to true in v6.2 of the driver, as this
* support was added to the backend.
*
* @return true if so
* @exception SQLException if a database access error occurs
*/
public boolean supportsNonNullableColumns() throws SQLException
{
return true;
}
/**
* Does this driver support the minimum ODBC SQL grammar. This
* grammar is defined at:
*
* <p><a href="http://www.microsoft.com/msdn/sdk/platforms/doc/odbc/src/intropr.htm">http://www.microsoft.com/msdn/sdk/platforms/doc/odbc/src/intropr.htm</a>
*
* <p>In Appendix C. From this description, we seem to support the
* ODBC minimal (Level 0) grammar.
*
* @return true if so
* @exception SQLException if a database access error occurs
*/
public boolean supportsMinimumSQLGrammar() throws SQLException
{
return true;
}
/**
* Does this driver support the Core ODBC SQL grammar. We need
* SQL-92 conformance for this.
*
* @return true if so
* @exception SQLException if a database access error occurs
*/
public boolean supportsCoreSQLGrammar() throws SQLException
{
return false;
}
/**
* Does this driver support the Extended (Level 2) ODBC SQL
* grammar. We don't conform to the Core (Level 1), so we can't
* conform to the Extended SQL Grammar.
*
* @return true if so
* @exception SQLException if a database access error occurs
*/
public boolean supportsExtendedSQLGrammar() throws SQLException
{
return false;
}
/**
* Does this driver support the ANSI-92 entry level SQL grammar?
* All JDBC Compliant drivers must return true. I think we have
* to support outer joins for this to be true.
*
* @return true if so
* @exception SQLException if a database access error occurs
*/
public boolean supportsANSI92EntryLevelSQL() throws SQLException
{
return false;
}
/**
* Does this driver support the ANSI-92 intermediate level SQL
* grammar? Anyone who does not support Entry level cannot support
* Intermediate level.
*
* @return true if so
* @exception SQLException if a database access error occurs
*/
public boolean supportsANSI92IntermediateSQL() throws SQLException
{
return false;
}
/**
* Does this driver support the ANSI-92 full SQL grammar?
*
* @return true if so
* @exception SQLException if a database access error occurs
*/
public boolean supportsANSI92FullSQL() throws SQLException
{
return false;
}
/**
* Is the SQL Integrity Enhancement Facility supported?
* I haven't seen this mentioned anywhere, so I guess not
*
* @return true if so
* @exception SQLException if a database access error occurs
*/
public boolean supportsIntegrityEnhancementFacility() throws SQLException
{
return false;
}
/**
* Is some form of outer join supported? From my knowledge, nope.
*
* @return true if so
* @exception SQLException if a database access error occurs
*/
public boolean supportsOuterJoins() throws SQLException
{
return false;
}
/**
* Are full nexted outer joins supported? Well, we dont support any
* form of outer join, so this is no as well
*
* @return true if so
* @exception SQLException if a database access error occurs
*/
public boolean supportsFullOuterJoins() throws SQLException
{
return false;
}
/**
* Is there limited support for outer joins? (This will be true if
* supportFullOuterJoins is true)
*
* @return true if so
* @exception SQLException if a database access error occurs
*/
public boolean supportsLimitedOuterJoins() throws SQLException
{
return false;
}
/**
* What is the database vendor's preferred term for "schema" - well,
* we do not provide support for schemas, so lets just use that
* term.
*
* @return the vendor term
* @exception SQLException if a database access error occurs
*/
public String getSchemaTerm() throws SQLException
{
return new String("Schema");
}
/**
* What is the database vendor's preferred term for "procedure" -
* I kind of like "Procedure" myself.
*
* @return the vendor term
* @exception SQLException if a database access error occurs
*/
public String getProcedureTerm() throws SQLException
{
return new String("Procedure");
}
/**
* What is the database vendor's preferred term for "catalog"? -
* we dont have a preferred term, so just use Catalog
*
* @return the vendor term
* @exception SQLException if a database access error occurs
*/
public String getCatalogTerm() throws SQLException
{
return new String("Catalog");
}
/**
* Does a catalog appear at the start of a qualified table name?
* (Otherwise it appears at the end).
*
* @return true if so
* @exception SQLException if a database access error occurs
*/
public boolean isCatalogAtStart() throws SQLException
{
return false;
}
/**
* What is the Catalog separator. Hmmm....well, I kind of like
* a period (so we get catalog.table definitions). - I don't think
* PostgreSQL supports catalogs anyhow, so it makes no difference.
*
* @return the catalog separator string
* @exception SQLException if a database access error occurs
*/
public String getCatalogSeparator() throws SQLException
{
// PM Sep 29 97 - changed from "." as we don't support catalogs.
return new String("");
}
/**
* Can a schema name be used in a data manipulation statement? Nope.
*
* @return true if so
* @exception SQLException if a database access error occurs
*/
public boolean supportsSchemasInDataManipulation() throws SQLException
{
return false;
}
/**
* Can a schema name be used in a procedure call statement? Nope.
*
* @return true if so
* @exception SQLException if a database access error occurs
*/
public boolean supportsSchemasInProcedureCalls() throws SQLException
{
return false;
}
/**
* Can a schema be used in a table definition statement? Nope.
*
* @return true if so
* @exception SQLException if a database access error occurs
*/
public boolean supportsSchemasInTableDefinitions() throws SQLException
{
return false;
}
/**
* Can a schema name be used in an index definition statement?
*
* @return true if so
* @exception SQLException if a database access error occurs
*/
public boolean supportsSchemasInIndexDefinitions() throws SQLException
{
return false;
}
/**
* Can a schema name be used in a privilege definition statement?
*
* @return true if so
* @exception SQLException if a database access error occurs
*/
public boolean supportsSchemasInPrivilegeDefinitions() throws SQLException
{
return false;
}
/**
* Can a catalog name be used in a data manipulation statement?
*
* @return true if so
* @exception SQLException if a database access error occurs
*/
public boolean supportsCatalogsInDataManipulation() throws SQLException
{
return false;
}
/**
* Can a catalog name be used in a procedure call statement?
*
* @return true if so
* @exception SQLException if a database access error occurs
*/
public boolean supportsCatalogsInProcedureCalls() throws SQLException
{
return false;
}
/**
* Can a catalog name be used in a table definition statement?
*
* @return true if so
* @exception SQLException if a database access error occurs
*/
public boolean supportsCatalogsInTableDefinitions() throws SQLException
{
return false;
}
/**
* Can a catalog name be used in an index definition?
*
* @return true if so
* @exception SQLException if a database access error occurs
*/
public boolean supportsCatalogsInIndexDefinitions() throws SQLException
{
return false;
}
/**
* Can a catalog name be used in a privilege definition statement?
*
* @return true if so
* @exception SQLException if a database access error occurs
*/
public boolean supportsCatalogsInPrivilegeDefinitions() throws SQLException
{
return false;
}
/**
* We support cursors for gets only it seems. I dont see a method
* to get a positioned delete.
*
* @return true if so
* @exception SQLException if a database access error occurs
*/
public boolean supportsPositionedDelete() throws SQLException
{
return false; // For now...
}
/**
* Is positioned UPDATE supported?
*
* @return true if so
* @exception SQLException if a database access error occurs
*/
public boolean supportsPositionedUpdate() throws SQLException
{
return false; // For now...
}
public boolean supportsSelectForUpdate() throws SQLException
{
// XXX-Not Implemented
return false;
}
public boolean supportsStoredProcedures() throws SQLException
{
// XXX-Not Implemented
return false;
}
public boolean supportsSubqueriesInComparisons() throws SQLException
{
// XXX-Not Implemented
return false;
}
public boolean supportsSubqueriesInExists() throws SQLException
{
// XXX-Not Implemented
return false;
}
public boolean supportsSubqueriesInIns() throws SQLException
{
// XXX-Not Implemented
return false;
}
public boolean supportsSubqueriesInQuantifieds() throws SQLException
{
// XXX-Not Implemented
return false;
}
public boolean supportsCorrelatedSubqueries() throws SQLException
{
// XXX-Not Implemented
return false;
}
/**
* Is SQL UNION supported? Nope.
*
* @return true if so
* @exception SQLException if a database access error occurs
*/
public boolean supportsUnion() throws SQLException
{
return false;
}
/**
* Is SQL UNION ALL supported? Nope.
*
* @return true if so
* @exception SQLException if a database access error occurs
*/
public boolean supportsUnionAll() throws SQLException
{
return false;
}
/**
* In PostgreSQL, Cursors are only open within transactions.
*
* @return true if so
* @exception SQLException if a database access error occurs
*/
public boolean supportsOpenCursorsAcrossCommit() throws SQLException
{
return false;
}
/**
* Do we support open cursors across multiple transactions?
*
* @return true if so
* @exception SQLException if a database access error occurs
*/
public boolean supportsOpenCursorsAcrossRollback() throws SQLException
{
return false;
}
/**
* Can statements remain open across commits? They may, but
* this driver cannot guarentee that. In further reflection.
* we are talking a Statement object jere, so the answer is
* yes, since the Statement is only a vehicle to ExecSQL()
*
* @return true if they always remain open; false otherwise
* @exception SQLException if a database access error occurs
*/
public boolean supportsOpenStatementsAcrossCommit() throws SQLException
{
return true;
}
/**
* Can statements remain open across rollbacks? They may, but
* this driver cannot guarentee that. In further contemplation,
* we are talking a Statement object here, so the answer is yes,
* since the Statement is only a vehicle to ExecSQL() in Connection
*
* @return true if they always remain open; false otherwise
* @exception SQLException if a database access error occurs
*/
public boolean supportsOpenStatementsAcrossRollback() throws SQLException
{
return true;
}
/**
* How many hex characters can you have in an inline binary literal
*
* @return the max literal length
* @exception SQLException if a database access error occurs
*/
public int getMaxBinaryLiteralLength() throws SQLException
{
return 0; // For now...
}
/**
* What is the maximum length for a character literal
* I suppose it is 8190 (8192 - 2 for the quotes)
*
* @return the max literal length
* @exception SQLException if a database access error occurs
*/
public int getMaxCharLiteralLength() throws SQLException
{
return 8190;
}
/**
* Whats the limit on column name length. The description of
* pg_class would say '32' (length of pg_class.relname) - we
* should probably do a query for this....but....
*
* @return the maximum column name length
* @exception SQLException if a database access error occurs
*/
public int getMaxColumnNameLength() throws SQLException
{
return 32;
}
/**
* What is the maximum number of columns in a "GROUP BY" clause?
*
* @return the max number of columns
* @exception SQLException if a database access error occurs
*/
public int getMaxColumnsInGroupBy() throws SQLException
{
return getMaxColumnsInTable();
}
/**
* What's the maximum number of columns allowed in an index?
* 6.0 only allowed one column, but 6.1 introduced multi-column
* indices, so, theoretically, its all of them.
*
* @return max number of columns
* @exception SQLException if a database access error occurs
*/
public int getMaxColumnsInIndex() throws SQLException
{
return getMaxColumnsInTable();
}
/**
* What's the maximum number of columns in an "ORDER BY clause?
* Theoretically, all of them!
*
* @return the max columns
* @exception SQLException if a database access error occurs
*/
public int getMaxColumnsInOrderBy() throws SQLException
{
return getMaxColumnsInTable();
}
/**
* What is the maximum number of columns in a "SELECT" list?
* Theoretically, all of them!
*
* @return the max columns
* @exception SQLException if a database access error occurs
*/
public int getMaxColumnsInSelect() throws SQLException
{
return getMaxColumnsInTable();
}
/**
* What is the maximum number of columns in a table? From the
* create_table(l) manual page...
*
* <p>"The new class is created as a heap with no initial data. A
* class can have no more than 1600 attributes (realistically,
* this is limited by the fact that tuple sizes must be less than
* 8192 bytes)..."
*
* @return the max columns
* @exception SQLException if a database access error occurs
*/
public int getMaxColumnsInTable() throws SQLException
{
return 1600;
}
/**
* How many active connection can we have at a time to this
* database? Well, since it depends on postmaster, which just
* does a listen() followed by an accept() and fork(), its
* basically very high. Unless the system runs out of processes,
* it can be 65535 (the number of aux. ports on a TCP/IP system).
* I will return 8192 since that is what even the largest system
* can realistically handle,
*
* @return the maximum number of connections
* @exception SQLException if a database access error occurs
*/
public int getMaxConnections() throws SQLException
{
return 8192;
}
/**
* What is the maximum cursor name length (the same as all
* the other F***** identifiers!)
*
* @return max cursor name length in bytes
* @exception SQLException if a database access error occurs
*/
public int getMaxCursorNameLength() throws SQLException
{
return 32;
}
/**
* What is the maximum length of an index (in bytes)? Now, does
* the spec. mean name of an index (in which case its 32, the
* same as a table) or does it mean length of an index element
* (in which case its 8192, the size of a row) or does it mean
* the number of rows it can access (in which case it 2^32 -
* a 4 byte OID number)? I think its the length of an index
* element, personally, so Im setting it to 8192.
*
* @return max index length in bytes
* @exception SQLException if a database access error occurs
*/
public int getMaxIndexLength() throws SQLException
{
return 8192;
}
public int getMaxSchemaNameLength() throws SQLException
{
// XXX-Not Implemented
return 0;
}
/**
* What is the maximum length of a procedure name?
* (length of pg_proc.proname used) - again, I really
* should do a query here to get it.
*
* @return the max name length in bytes
* @exception SQLException if a database access error occurs
*/
public int getMaxProcedureNameLength() throws SQLException
{
return 32;
}
public int getMaxCatalogNameLength() throws SQLException
{
// XXX-Not Implemented
return 0;
}
/**
* What is the maximum length of a single row? (not including
* blobs). 8192 is defined in PostgreSQL.
*
* @return max row size in bytes
* @exception SQLException if a database access error occurs
*/
public int getMaxRowSize() throws SQLException
{
return 8192;
}
/**
* Did getMaxRowSize() include LONGVARCHAR and LONGVARBINARY
* blobs? We don't handle blobs yet
*
* @return true if so
* @exception SQLException if a database access error occurs
*/
public boolean doesMaxRowSizeIncludeBlobs() throws SQLException
{
return false;
}
/**
* What is the maximum length of a SQL statement?
*
* @return max length in bytes
* @exception SQLException if a database access error occurs
*/
public int getMaxStatementLength() throws SQLException
{
return 8192;
}
/**
* How many active statements can we have open at one time to
* this database? Basically, since each Statement downloads
* the results as the query is executed, we can have many. However,
* we can only really have one statement per connection going
* at once (since they are executed serially) - so we return
* one.
*
* @return the maximum
* @exception SQLException if a database access error occurs
*/
public int getMaxStatements() throws SQLException
{
return 1;
}
/**
* What is the maximum length of a table name? This was found
* from pg_class.relname length
*
* @return max name length in bytes
* @exception SQLException if a database access error occurs
*/
public int getMaxTableNameLength() throws SQLException
{
return 32;
}
/**
* What is the maximum number of tables that can be specified
* in a SELECT? Theoretically, this is the same number as the
* number of tables allowable. In practice tho, it is much smaller
* since the number of tables is limited by the statement, we
* return 1024 here - this is just a number I came up with (being
* the number of tables roughly of three characters each that you
* can fit inside a 8192 character buffer with comma separators).
*
* @return the maximum
* @exception SQLException if a database access error occurs
*/
public int getMaxTablesInSelect() throws SQLException
{
return 1024;
}
/**
* What is the maximum length of a user name? Well, we generally
* use UNIX like user names in PostgreSQL, so I think this would
* be 8. However, showing the schema for pg_user shows a length
* for username of 32.
*
* @return the max name length in bytes
* @exception SQLException if a database access error occurs
*/
public int getMaxUserNameLength() throws SQLException
{
return 32;
}
/**
* What is the database's default transaction isolation level? We
* do not support this, so all transactions are SERIALIZABLE.
*
* @return the default isolation level
* @exception SQLException if a database access error occurs
* @see Connection
*/
public int getDefaultTransactionIsolation() throws SQLException
{
return Connection.TRANSACTION_SERIALIZABLE;
}
/**
* Are transactions supported? If not, commit and rollback are noops
* and the isolation level is TRANSACTION_NONE. We do support
* transactions.
*
* @return true if transactions are supported
* @exception SQLException if a database access error occurs
*/
public boolean supportsTransactions() throws SQLException
{
return true;
}
/**
* Does the database support the given transaction isolation level?
* We only support TRANSACTION_SERIALIZABLE
*
* @param level the values are defined in java.sql.Connection
* @return true if so
* @exception SQLException if a database access error occurs
* @see Connection
*/
public boolean supportsTransactionIsolationLevel(int level) throws SQLException
{
if (level == Connection.TRANSACTION_SERIALIZABLE)
return true;
else
return false;
}
/**
* Are both data definition and data manipulation transactions
* supported? I checked it, and could not do a CREATE TABLE
* within a transaction, so I am assuming that we don't
*
* @return true if so
* @exception SQLException if a database access error occurs
*/
public boolean supportsDataDefinitionAndDataManipulationTransactions() throws SQLException
{
return false;
}
/**
* Are only data manipulation statements withing a transaction
* supported?
*
* @return true if so
* @exception SQLException if a database access error occurs
*/
public boolean supportsDataManipulationTransactionsOnly() throws SQLException
{
return true;
}
/**
* Does a data definition statement within a transaction force
* the transaction to commit? I think this means something like:
*
* <p><pre>
* CREATE TABLE T (A INT);
* INSERT INTO T (A) VALUES (2);
* BEGIN;
* UPDATE T SET A = A + 1;
* CREATE TABLE X (A INT);
* SELECT A FROM T INTO X;
* COMMIT;
* </pre><p>
*
* does the CREATE TABLE call cause a commit? The answer is no.
*
* @return true if so
* @exception SQLException if a database access error occurs
*/
public boolean dataDefinitionCausesTransactionCommit() throws SQLException
{
return false;
}
/**
* Is a data definition statement within a transaction ignored?
* It seems to be (from experiment in previous method)
*
* @return true if so
* @exception SQLException if a database access error occurs
*/
public boolean dataDefinitionIgnoredInTransactions() throws SQLException
{
return true;
}
/**
* Get a description of stored procedures available in a catalog
*
* <p>Only procedure descriptions matching the schema and procedure
* name criteria are returned. They are ordered by PROCEDURE_SCHEM
* and PROCEDURE_NAME
*
* <p>Each procedure description has the following columns:
* <ol>
* <li><b>PROCEDURE_CAT</b> String => procedure catalog (may be null)
* <li><b>PROCEDURE_SCHEM</b> String => procedure schema (may be null)
* <li><b>PROCEDURE_NAME</b> String => procedure name
* <li><b>Field 4</b> reserved (make it null)
* <li><b>Field 5</b> reserved (make it null)
* <li><b>Field 6</b> reserved (make it null)
* <li><b>REMARKS</b> String => explanatory comment on the procedure
* <li><b>PROCEDURE_TYPE</b> short => kind of procedure
* <ul>
* <li> procedureResultUnknown - May return a result
* <li> procedureNoResult - Does not return a result
* <li> procedureReturnsResult - Returns a result
* </ul>
* </ol>
*
* @param catalog - a catalog name; "" retrieves those without a
* catalog; null means drop catalog name from criteria
* @param schemaParrern - a schema name pattern; "" retrieves those
* without a schema - we ignore this parameter
* @param procedureNamePattern - a procedure name pattern
* @return ResultSet - each row is a procedure description
* @exception SQLException if a database access error occurs
*/
public java.sql.ResultSet getProcedures(String catalog, String schemaPattern, String procedureNamePattern) throws SQLException
{
// the field descriptors for the new ResultSet
Field f[] = new Field[8];
ResultSet r; // ResultSet for the SQL query that we need to do
Vector v = new Vector(); // The new ResultSet tuple stuff
byte remarks[] = defaultRemarks;
f[0] = new Field(connection, "PROCEDURE_CAT", iVarcharOid, 32);
f[1] = new Field(connection, "PROCEDURE_SCHEM", iVarcharOid, 32);
f[2] = new Field(connection, "PROCEDURE_NAME", iVarcharOid, 32);
f[3] = f[4] = f[5] = null; // reserved, must be null for now
f[6] = new Field(connection, "REMARKS", iVarcharOid, 8192);
f[7] = new Field(connection, "PROCEDURE_TYPE", iInt2Oid, 2);
// If the pattern is null, then set it to the default
if(procedureNamePattern==null)
procedureNamePattern="%";
r = connection.ExecSQL("select proname, proretset from pg_proc where proname like '"+procedureNamePattern.toLowerCase()+"' order by proname");
while (r.next())
{
byte[][] tuple = new byte[8][0];
tuple[0] = null; // Catalog name
tuple[1] = null; // Schema name
tuple[2] = r.getBytes(1); // Procedure name
tuple[3] = tuple[4] = tuple[5] = null; // Reserved
tuple[6] = remarks; // Remarks
if (r.getBoolean(2))
tuple[7] = Integer.toString(java.sql.DatabaseMetaData.procedureReturnsResult).getBytes();
else
tuple[7] = Integer.toString(java.sql.DatabaseMetaData.procedureNoResult).getBytes();
v.addElement(tuple);
}
return new ResultSet(connection, f, v, "OK", 1);
}
/**
* Get a description of a catalog's stored procedure parameters
* and result columns.
*
* <p>Only descriptions matching the schema, procedure and parameter
* name criteria are returned. They are ordered by PROCEDURE_SCHEM
* and PROCEDURE_NAME. Within this, the return value, if any, is
* first. Next are the parameter descriptions in call order. The
* column descriptions follow in column number order.
*
* <p>Each row in the ResultSet is a parameter description or column
* description with the following fields:
* <ol>
* <li><b>PROCEDURE_CAT</b> String => procedure catalog (may be null)
* <li><b>PROCEDURE_SCHE</b>M String => procedure schema (may be null)
* <li><b>PROCEDURE_NAME</b> String => procedure name
* <li><b>COLUMN_NAME</b> String => column/parameter name
* <li><b>COLUMN_TYPE</b> Short => kind of column/parameter:
* <ul><li>procedureColumnUnknown - nobody knows
* <li>procedureColumnIn - IN parameter
* <li>procedureColumnInOut - INOUT parameter
* <li>procedureColumnOut - OUT parameter
* <li>procedureColumnReturn - procedure return value
* <li>procedureColumnResult - result column in ResultSet
* </ul>
* <li><b>DATA_TYPE</b> short => SQL type from java.sql.Types
* <li><b>TYPE_NAME</b> String => SQL type name
* <li><b>PRECISION</b> int => precision
* <li><b>LENGTH</b> int => length in bytes of data
* <li><b>SCALE</b> short => scale
* <li><b>RADIX</b> short => radix
* <li><b>NULLABLE</b> short => can it contain NULL?
* <ul><li>procedureNoNulls - does not allow NULL values
* <li>procedureNullable - allows NULL values
* <li>procedureNullableUnknown - nullability unknown
* <li><b>REMARKS</b> String => comment describing parameter/column
* </ol>
* @param catalog This is ignored in postgresql, advise this is set to null
* @param schemaPattern This is ignored in postgresql, advise this is set to null
* @param procedureNamePattern a procedure name pattern
* @param columnNamePattern a column name pattern
* @return each row is a stored procedure parameter or column description
* @exception SQLException if a database-access error occurs
* @see #getSearchStringEscape
*/
// Implementation note: This is required for Borland's JBuilder to work
public java.sql.ResultSet getProcedureColumns(String catalog, String schemaPattern, String procedureNamePattern, String columnNamePattern) throws SQLException
{
if(procedureNamePattern==null)
procedureNamePattern="%";
if(columnNamePattern==null)
columnNamePattern="%";
// for now, this returns an empty result set.
Field f[] = new Field[13];
ResultSet r; // ResultSet for the SQL query that we need to do
Vector v = new Vector(); // The new ResultSet tuple stuff
f[0] = new Field(connection, new String("PROCEDURE_CAT"), iVarcharOid, 32);
f[1] = new Field(connection, new String("PROCEDURE_SCHEM"), iVarcharOid, 32);
f[2] = new Field(connection, new String("PROCEDURE_NAME"), iVarcharOid, 32);
f[3] = new Field(connection, new String("COLUMN_NAME"), iVarcharOid, 32);
f[4] = new Field(connection, new String("COLUMN_TYPE"), iInt2Oid, 2);
f[5] = new Field(connection, new String("DATA_TYPE"), iInt2Oid, 2);
f[6] = new Field(connection, new String("TYPE_NAME"), iVarcharOid, 32);
f[7] = new Field(connection, new String("PRECISION"), iInt4Oid, 4);
f[8] = new Field(connection, new String("LENGTH"), iInt4Oid, 4);
f[9] = new Field(connection, new String("SCALE"), iInt2Oid, 2);
f[10] = new Field(connection, new String("RADIX"), iInt2Oid, 2);
f[11] = new Field(connection, new String("NULLABLE"), iInt2Oid, 2);
f[12] = new Field(connection, new String("REMARKS"), iVarcharOid, 32);
// add query loop here
return new ResultSet(connection, f, v, "OK", 1);
}
/**
* Get a description of tables available in a catalog.
*
* <p>Only table descriptions matching the catalog, schema, table
* name and type criteria are returned. They are ordered by
* TABLE_TYPE, TABLE_SCHEM and TABLE_NAME.
*
* <p>Each table description has the following columns:
*
* <ol>
* <li><b>TABLE_CAT</b> String => table catalog (may be null)
* <li><b>TABLE_SCHEM</b> String => table schema (may be null)
* <li><b>TABLE_NAME</b> String => table name
* <li><b>TABLE_TYPE</b> String => table type. Typical types are "TABLE",
* "VIEW", "SYSTEM TABLE", "GLOBAL TEMPORARY", "LOCAL
* TEMPORARY", "ALIAS", "SYNONYM".
* <li><b>REMARKS</b> String => explanatory comment on the table
* </ol>
*
* <p>The valid values for the types parameter are:
* "TABLE", "INDEX", "LARGE OBJECT", "SEQUENCE", "SYSTEM TABLE" and
* "SYSTEM INDEX"
*
* @param catalog a catalog name; For postgresql, this is ignored, and
* should be set to null
* @param schemaPattern a schema name pattern; For postgresql, this is ignored, and
* should be set to null
* @param tableNamePattern a table name pattern. For all tables this should be "%"
* @param types a list of table types to include; null returns
* all types
* @return each row is a table description
* @exception SQLException if a database-access error occurs.
*/
public java.sql.ResultSet getTables(String catalog, String schemaPattern, String tableNamePattern, String types[]) throws SQLException
{
// Handle default value for types
if(types==null)
types = defaultTableTypes;
if(tableNamePattern==null)
tableNamePattern="%";
// the field descriptors for the new ResultSet
Field f[] = new Field[5];
ResultSet r; // ResultSet for the SQL query that we need to do
Vector v = new Vector(); // The new ResultSet tuple stuff
f[0] = new Field(connection, new String("TABLE_CAT"), iVarcharOid, 32);
f[1] = new Field(connection, new String("TABLE_SCHEM"), iVarcharOid, 32);
f[2] = new Field(connection, new String("TABLE_NAME"), iVarcharOid, 32);
f[3] = new Field(connection, new String("TABLE_TYPE"), iVarcharOid, 32);
f[4] = new Field(connection, new String("REMARKS"), iVarcharOid, 32);
// Now form the query
StringBuffer sql = new StringBuffer("select relname,oid from pg_class where (");
boolean notFirst=false;
for(int i=0;i<types.length;i++) {
if(notFirst)
sql.append(" or ");
for(int j=0;j<getTableTypes.length;j++)
if(getTableTypes[j][0].equals(types[i])) {
sql.append(getTableTypes[j][1]);
notFirst=true;
}
}
// Added by Stefan Andreasen <stefan@linux.kapow.dk>
// Now take the pattern into account
sql.append(") and relname like '");
sql.append(tableNamePattern.toLowerCase());
sql.append("'");
// Now run the query
r = connection.ExecSQL(sql.toString());
byte remarks[];
while (r.next())
{
byte[][] tuple = new byte[5][0];
// Fetch the description for the table (if any)
ResultSet dr = connection.ExecSQL("select description from pg_description where objoid="+r.getInt(2));
if(dr.getTupleCount()==1) {
dr.next();
remarks = dr.getBytes(1);
} else
remarks = defaultRemarks;
dr.close();
tuple[0] = null; // Catalog name
tuple[1] = null; // Schema name
tuple[2] = r.getBytes(1); // Table name
tuple[3] = null; // Table type
tuple[4] = remarks; // Remarks
v.addElement(tuple);
}
r.close();
return new ResultSet(connection, f, v, "OK", 1);
}
// This array contains the valid values for the types argument
// in getTables().
//
// Each supported type consists of it's name, and the sql where
// clause to retrieve that value.
//
// IMPORTANT: the query must be enclosed in ( )
private static final String getTableTypes[][] = {
{"TABLE", "(relkind='r' and relname !~ '^pg_' and relname !~ '^xinv')"},
{"INDEX", "(relkind='i' and relname !~ '^pg_' and relname !~ '^xinx')"},
{"LARGE OBJECT", "(relkind='r' and relname ~ '^xinv')"},
{"SEQUENCE", "(relkind='S' and relname !~ '^pg_')"},
{"SYSTEM TABLE", "(relkind='r' and relname ~ '^pg_')"},
{"SYSTEM INDEX", "(relkind='i' and relname ~ '^pg_')"}
};
// These are the default tables, used when NULL is passed to getTables
// The choice of these provide the same behaviour as psql's \d
private static final String defaultTableTypes[] = {
"TABLE","INDEX","SEQUENCE"
};
/**
* Get the schema names available in this database. The results
* are ordered by schema name.
*
* <P>The schema column is:
* <OL>
* <LI><B>TABLE_SCHEM</B> String => schema name
* </OL>
*
* @return ResultSet each row has a single String column that is a
* schema name
*/
public java.sql.ResultSet getSchemas() throws SQLException
{
// We don't use schemas, so we simply return a single schema name "".
//
Field f[] = new Field[1];
Vector v = new Vector();
byte[][] tuple = new byte[1][0];
f[0] = new Field(connection,new String("TABLE_SCHEM"),iVarcharOid,32);
tuple[0] = "".getBytes();
v.addElement(tuple);
return new ResultSet(connection,f,v,"OK",1);
}
/**
* Get the catalog names available in this database. The results
* are ordered by catalog name.
*
* <P>The catalog column is:
* <OL>
* <LI><B>TABLE_CAT</B> String => catalog name
* </OL>
*
* @return ResultSet each row has a single String column that is a
* catalog name
*/
public java.sql.ResultSet getCatalogs() throws SQLException
{
// We don't use catalogs, so we simply return a single catalog name "".
Field f[] = new Field[1];
Vector v = new Vector();
byte[][] tuple = new byte[1][0];
f[0] = new Field(connection,new String("TABLE_CAT"),iVarcharOid,32);
tuple[0] = "".getBytes();
v.addElement(tuple);
return new ResultSet(connection,f,v,"OK",1);
}
/**
* Get the table types available in this database. The results
* are ordered by table type.
*
* <P>The table type is:
* <OL>
* <LI><B>TABLE_TYPE</B> String => table type. Typical types are "TABLE",
* "VIEW", "SYSTEM TABLE", "GLOBAL TEMPORARY",
* "LOCAL TEMPORARY", "ALIAS", "SYNONYM".
* </OL>
*
* @return ResultSet each row has a single String column that is a
* table type
*/
public java.sql.ResultSet getTableTypes() throws SQLException
{
Field f[] = new Field[1];
Vector v = new Vector();
byte[][] tuple = new byte[1][0];
f[0] = new Field(connection,new String("TABLE_TYPE"),iVarcharOid,32);
for(int i=0;i<getTableTypes.length;i++) {
tuple[0] = getTableTypes[i][0].getBytes();
v.addElement(tuple);
}
return new ResultSet(connection,f,v,"OK",1);
}
/**
* Get a description of table columns available in a catalog.
*
* <P>Only column descriptions matching the catalog, schema, table
* and column name criteria are returned. They are ordered by
* TABLE_SCHEM, TABLE_NAME and ORDINAL_POSITION.
*
* <P>Each column description has the following columns:
* <OL>
* <LI><B>TABLE_CAT</B> String => table catalog (may be null)
* <LI><B>TABLE_SCHEM</B> String => table schema (may be null)
* <LI><B>TABLE_NAME</B> String => table name
* <LI><B>COLUMN_NAME</B> String => column name
* <LI><B>DATA_TYPE</B> short => SQL type from java.sql.Types
* <LI><B>TYPE_NAME</B> String => Data source dependent type name
* <LI><B>COLUMN_SIZE</B> int => column size. For char or date
* types this is the maximum number of characters, for numeric or
* decimal types this is precision.
* <LI><B>BUFFER_LENGTH</B> is not used.
* <LI><B>DECIMAL_DIGITS</B> int => the number of fractional digits
* <LI><B>NUM_PREC_RADIX</B> int => Radix (typically either 10 or 2)
* <LI><B>NULLABLE</B> int => is NULL allowed?
* <UL>
* <LI> columnNoNulls - might not allow NULL values
* <LI> columnNullable - definitely allows NULL values
* <LI> columnNullableUnknown - nullability unknown
* </UL>
* <LI><B>REMARKS</B> String => comment describing column (may be null)
* <LI><B>COLUMN_DEF</B> String => default value (may be null)
* <LI><B>SQL_DATA_TYPE</B> int => unused
* <LI><B>SQL_DATETIME_SUB</B> int => unused
* <LI><B>CHAR_OCTET_LENGTH</B> int => for char types the
* maximum number of bytes in the column
* <LI><B>ORDINAL_POSITION</B> int => index of column in table
* (starting at 1)
* <LI><B>IS_NULLABLE</B> String => "NO" means column definitely
* does not allow NULL values; "YES" means the column might
* allow NULL values. An empty string means nobody knows.
* </OL>
*
* @param catalog a catalog name; "" retrieves those without a catalog
* @param schemaPattern a schema name pattern; "" retrieves those
* without a schema
* @param tableNamePattern a table name pattern
* @param columnNamePattern a column name pattern
* @return ResultSet each row is a column description
* @see #getSearchStringEscape
*/
public java.sql.ResultSet getColumns(String catalog, String schemaPattern, String tableNamePattern, String columnNamePattern) throws SQLException
{
// the field descriptors for the new ResultSet
Field f[] = new Field[18];
ResultSet r; // ResultSet for the SQL query that we need to do
Vector v = new Vector(); // The new ResultSet tuple stuff
f[0] = new Field(connection, new String("TABLE_CAT"), iVarcharOid, 32);
f[1] = new Field(connection, new String("TABLE_SCHEM"), iVarcharOid, 32);
f[2] = new Field(connection, new String("TABLE_NAME"), iVarcharOid, 32);
f[3] = new Field(connection, new String("COLUMN_NAME"), iVarcharOid, 32);
f[4] = new Field(connection, new String("DATA_TYPE"), iInt2Oid, 2);
f[5] = new Field(connection, new String("TYPE_NAME"), iVarcharOid, 32);
f[6] = new Field(connection, new String("COLUMN_SIZE"), iInt4Oid, 4);
f[7] = new Field(connection, new String("BUFFER_LENGTH"), iVarcharOid, 32);
f[8] = new Field(connection, new String("DECIMAL_DIGITS"), iInt4Oid, 4);
f[9] = new Field(connection, new String("NUM_PREC_RADIX"), iInt4Oid, 4);
f[10] = new Field(connection, new String("NULLABLE"), iInt4Oid, 4);
f[11] = new Field(connection, new String("REMARKS"), iVarcharOid, 32);
f[12] = new Field(connection, new String("COLUMN_DEF"), iVarcharOid, 32);
f[13] = new Field(connection, new String("SQL_DATA_TYPE"), iInt4Oid, 4);
f[14] = new Field(connection, new String("SQL_DATETIME_SUB"), iInt4Oid, 4);
f[15] = new Field(connection, new String("CHAR_OCTET_LENGTH"), iVarcharOid, 32);
f[16] = new Field(connection, new String("ORDINAL_POSITION"), iInt4Oid,4);
f[17] = new Field(connection, new String("IS_NULLABLE"), iVarcharOid, 32);
// Added by Stefan Andreasen <stefan@linux.kapow.dk>
// If the pattern are null then set them to %
if (tableNamePattern == null) tableNamePattern="%";
if (columnNamePattern == null) columnNamePattern="%";
// Now form the query
// Modified by Stefan Andreasen <stefan@linux.kapow.dk>
r = connection.ExecSQL("select a.oid,c.relname,a.attname,a.atttypid,a.attnum,a.attnotnull,a.attlen,a.atttypmod from pg_class c, pg_attribute a where a.attrelid=c.oid and c.relname like '"+tableNamePattern.toLowerCase()+"' and a.attname like '"+columnNamePattern.toLowerCase()+"' and a.attnum>0 order by c.relname,a.attnum");
byte remarks[];
while(r.next()) {
byte[][] tuple = new byte[18][0];
// Fetch the description for the table (if any)
ResultSet dr = connection.ExecSQL("select description from pg_description where objoid="+r.getInt(1));
if(dr.getTupleCount()==1) {
dr.next();
tuple[11] = dr.getBytes(1);
} else
tuple[11] = defaultRemarks;
dr.close();
tuple[0] = "".getBytes(); // Catalog name
tuple[1] = "".getBytes(); // Schema name
tuple[2] = r.getBytes(2); // Table name
tuple[3] = r.getBytes(3); // Column name
dr = connection.ExecSQL("select typname from pg_type where oid = "+r.getString(4));
dr.next();
String typname=dr.getString(1);
dr.close();
tuple[4] = Integer.toString(Field.getSQLType(typname)).getBytes(); // Data type
tuple[5] = typname.getBytes(); // Type name
// Column size
// Looking at the psql source,
// I think the length of a varchar as specified when the table was created
// should be extracted from atttypmod which contains this length + sizeof(int32)
if (typname.equals("bpchar") || typname.equals("varchar")) {
int atttypmod = r.getInt(8);
tuple[6] = Integer.toString(atttypmod != -1 ? atttypmod - VARHDRSZ : 0).getBytes();
} else
tuple[6] = r.getBytes(7);
tuple[7] = null; // Buffer length
tuple[8] = "0".getBytes(); // Decimal Digits - how to get this?
tuple[9] = "10".getBytes(); // Num Prec Radix - assume decimal
// tuple[10] is below
// tuple[11] is above
tuple[12] = null; // column default
tuple[13] = null; // sql data type (unused)
tuple[14] = null; // sql datetime sub (unused)
tuple[15] = tuple[6]; // char octet length
tuple[16] = r.getBytes(5); // ordinal position
String nullFlag = r.getString(6);
tuple[10] = Integer.toString(nullFlag.equals("f")?java.sql.DatabaseMetaData.columnNullable:java.sql.DatabaseMetaData.columnNoNulls).getBytes(); // Nullable
tuple[17] = (nullFlag.equals("f")?"YES":"NO").getBytes(); // is nullable
v.addElement(tuple);
}
r.close();
return new ResultSet(connection, f, v, "OK", 1);
}
/**
* Get a description of the access rights for a table's columns.
*
* <P>Only privileges matching the column name criteria are
* returned. They are ordered by COLUMN_NAME and PRIVILEGE.
*
* <P>Each privilige description has the following columns:
* <OL>
* <LI><B>TABLE_CAT</B> String => table catalog (may be null)
* <LI><B>TABLE_SCHEM</B> String => table schema (may be null)
* <LI><B>TABLE_NAME</B> String => table name
* <LI><B>COLUMN_NAME</B> String => column name
* <LI><B>GRANTOR</B> => grantor of access (may be null)
* <LI><B>GRANTEE</B> String => grantee of access
* <LI><B>PRIVILEGE</B> String => name of access (SELECT,
* INSERT, UPDATE, REFRENCES, ...)
* <LI><B>IS_GRANTABLE</B> String => "YES" if grantee is permitted
* to grant to others; "NO" if not; null if unknown
* </OL>
*
* @param catalog a catalog name; "" retrieves those without a catalog
* @param schema a schema name; "" retrieves those without a schema
* @param table a table name
* @param columnNamePattern a column name pattern
* @return ResultSet each row is a column privilege description
* @see #getSearchStringEscape
*/
public java.sql.ResultSet getColumnPrivileges(String catalog, String schema, String table, String columnNamePattern) throws SQLException
{
Field f[] = new Field[8];
Vector v = new Vector();
if(table==null)
table="%";
if(columnNamePattern==null)
columnNamePattern="%";
else
columnNamePattern=columnNamePattern.toLowerCase();
f[0] = new Field(connection,new String("TABLE_CAT"),iVarcharOid,32);
f[1] = new Field(connection,new String("TABLE_SCHEM"),iVarcharOid,32);
f[2] = new Field(connection,new String("TABLE_NAME"),iVarcharOid,32);
f[3] = new Field(connection,new String("COLUMN_NAME"),iVarcharOid,32);
f[4] = new Field(connection,new String("GRANTOR"),iVarcharOid,32);
f[5] = new Field(connection,new String("GRANTEE"),iVarcharOid,32);
f[6] = new Field(connection,new String("PRIVILEGE"),iVarcharOid,32);
f[7] = new Field(connection,new String("IS_GRANTABLE"),iVarcharOid,32);
// This is taken direct from the psql source
ResultSet r = connection.ExecSQL("SELECT relname, relacl FROM pg_class, pg_user WHERE ( relkind = 'r' OR relkind = 'i') and relname !~ '^pg_' and relname !~ '^xin[vx][0-9]+' and usesysid = relowner and relname like '"+table.toLowerCase()+"' ORDER BY relname");
while(r.next()) {
byte[][] tuple = new byte[8][0];
tuple[0] = tuple[1]= "".getBytes();
DriverManager.println("relname=\""+r.getString(1)+"\" relacl=\""+r.getString(2)+"\"");
// For now, don't add to the result as relacl needs to be processed.
//v.addElement(tuple);
}
return new ResultSet(connection,f,v,"OK",1);
}
/**
* Get a description of the access rights for each table available
* in a catalog.
*
* <P>Only privileges matching the schema and table name
* criteria are returned. They are ordered by TABLE_SCHEM,
* TABLE_NAME, and PRIVILEGE.
*
* <P>Each privilige description has the following columns:
* <OL>
* <LI><B>TABLE_CAT</B> String => table catalog (may be null)
* <LI><B>TABLE_SCHEM</B> String => table schema (may be null)
* <LI><B>TABLE_NAME</B> String => table name
* <LI><B>COLUMN_NAME</B> String => column name
* <LI><B>GRANTOR</B> => grantor of access (may be null)
* <LI><B>GRANTEE</B> String => grantee of access
* <LI><B>PRIVILEGE</B> String => name of access (SELECT,
* INSERT, UPDATE, REFRENCES, ...)
* <LI><B>IS_GRANTABLE</B> String => "YES" if grantee is permitted
* to grant to others; "NO" if not; null if unknown
* </OL>
*
* @param catalog a catalog name; "" retrieves those without a catalog
* @param schemaPattern a schema name pattern; "" retrieves those
* without a schema
* @param tableNamePattern a table name pattern
* @return ResultSet each row is a table privilege description
* @see #getSearchStringEscape
*/
public java.sql.ResultSet getTablePrivileges(String catalog, String schemaPattern, String tableNamePattern) throws SQLException
{
// XXX-Not Implemented
return null;
}
/**
* Get a description of a table's optimal set of columns that
* uniquely identifies a row. They are ordered by SCOPE.
*
* <P>Each column description has the following columns:
* <OL>
* <LI><B>SCOPE</B> short => actual scope of result
* <UL>
* <LI> bestRowTemporary - very temporary, while using row
* <LI> bestRowTransaction - valid for remainder of current transaction
* <LI> bestRowSession - valid for remainder of current session
* </UL>
* <LI><B>COLUMN_NAME</B> String => column name
* <LI><B>DATA_TYPE</B> short => SQL data type from java.sql.Types
* <LI><B>TYPE_NAME</B> String => Data source dependent type name
* <LI><B>COLUMN_SIZE</B> int => precision
* <LI><B>BUFFER_LENGTH</B> int => not used
* <LI><B>DECIMAL_DIGITS</B> short => scale
* <LI><B>PSEUDO_COLUMN</B> short => is this a pseudo column
* like an Oracle ROWID
* <UL>
* <LI> bestRowUnknown - may or may not be pseudo column
* <LI> bestRowNotPseudo - is NOT a pseudo column
* <LI> bestRowPseudo - is a pseudo column
* </UL>
* </OL>
*
* @param catalog a catalog name; "" retrieves those without a catalog
* @param schema a schema name; "" retrieves those without a schema
* @param table a table name
* @param scope the scope of interest; use same values as SCOPE
* @param nullable include columns that are nullable?
* @return ResultSet each row is a column description
*/
// Implementation note: This is required for Borland's JBuilder to work
public java.sql.ResultSet getBestRowIdentifier(String catalog, String schema, String table, int scope, boolean nullable) throws SQLException
{
// for now, this returns an empty result set.
Field f[] = new Field[8];
ResultSet r; // ResultSet for the SQL query that we need to do
Vector v = new Vector(); // The new ResultSet tuple stuff
f[0] = new Field(connection, new String("SCOPE"), iInt2Oid, 2);
f[1] = new Field(connection, new String("COLUMN_NAME"), iVarcharOid, 32);
f[2] = new Field(connection, new String("DATA_TYPE"), iInt2Oid, 2);
f[3] = new Field(connection, new String("TYPE_NAME"), iVarcharOid, 32);
f[4] = new Field(connection, new String("COLUMN_SIZE"), iInt4Oid, 4);
f[5] = new Field(connection, new String("BUFFER_LENGTH"), iInt4Oid, 4);
f[6] = new Field(connection, new String("DECIMAL_DIGITS"), iInt2Oid, 2);
f[7] = new Field(connection, new String("PSEUDO_COLUMN"), iInt2Oid, 2);
return new ResultSet(connection, f, v, "OK", 1);
}
/**
* Get a description of a table's columns that are automatically
* updated when any value in a row is updated. They are
* unordered.
*
* <P>Each column description has the following columns:
* <OL>
* <LI><B>SCOPE</B> short => is not used
* <LI><B>COLUMN_NAME</B> String => column name
* <LI><B>DATA_TYPE</B> short => SQL data type from java.sql.Types
* <LI><B>TYPE_NAME</B> String => Data source dependent type name
* <LI><B>COLUMN_SIZE</B> int => precision
* <LI><B>BUFFER_LENGTH</B> int => length of column value in bytes
* <LI><B>DECIMAL_DIGITS</B> short => scale
* <LI><B>PSEUDO_COLUMN</B> short => is this a pseudo column
* like an Oracle ROWID
* <UL>
* <LI> versionColumnUnknown - may or may not be pseudo column
* <LI> versionColumnNotPseudo - is NOT a pseudo column
* <LI> versionColumnPseudo - is a pseudo column
* </UL>
* </OL>
*
* @param catalog a catalog name; "" retrieves those without a catalog
* @param schema a schema name; "" retrieves those without a schema
* @param table a table name
* @return ResultSet each row is a column description
*/
public java.sql.ResultSet getVersionColumns(String catalog, String schema, String table) throws SQLException
{
// XXX-Not Implemented
return null;
}
/**
* Get a description of a table's primary key columns. They
* are ordered by COLUMN_NAME.
*
* <P>Each column description has the following columns:
* <OL>
* <LI><B>TABLE_CAT</B> String => table catalog (may be null)
* <LI><B>TABLE_SCHEM</B> String => table schema (may be null)
* <LI><B>TABLE_NAME</B> String => table name
* <LI><B>COLUMN_NAME</B> String => column name
* <LI><B>KEY_SEQ</B> short => sequence number within primary key
* <LI><B>PK_NAME</B> String => primary key name (may be null)
* </OL>
*
* @param catalog a catalog name; "" retrieves those without a catalog
* @param schema a schema name pattern; "" retrieves those
* without a schema
* @param table a table name
* @return ResultSet each row is a primary key column description
*/
public java.sql.ResultSet getPrimaryKeys(String catalog, String schema, String table) throws SQLException
{
return connection.createStatement().executeQuery("SELECT " +
"'' as TABLE_CAT," +
"'' AS TABLE_SCHEM," +
"bc.relname AS TABLE_NAME," +
"ic.relname AS COLUMN_NAME," +
"'1' as KEY_SEQ,"+ // -- fake it as a String for now
"t.typname as PK_NAME " +
" FROM pg_class bc, pg_class ic, pg_index i, pg_attribute a, pg_type t " +
" WHERE bc.relkind = 'r' " + // -- not indices
" and bc.relname ~ '"+table+"'" +
" and i.indrelid = bc.oid" +
" and i.indexrelid = ic.oid" +
" and i.indkey[0] = a.attnum" +
" and i.indproc = '0'::oid" +
" and a.attrelid = bc.oid" +
" ORDER BY TABLE_NAME, COLUMN_NAME;"
);
}
/**
* Get a description of the primary key columns that are
* referenced by a table's foreign key columns (the primary keys
* imported by a table). They are ordered by PKTABLE_CAT,
* PKTABLE_SCHEM, PKTABLE_NAME, and KEY_SEQ.
*
* <P>Each primary key column description has the following columns:
* <OL>
* <LI><B>PKTABLE_CAT</B> String => primary key table catalog
* being imported (may be null)
* <LI><B>PKTABLE_SCHEM</B> String => primary key table schema
* being imported (may be null)
* <LI><B>PKTABLE_NAME</B> String => primary key table name
* being imported
* <LI><B>PKCOLUMN_NAME</B> String => primary key column name
* being imported
* <LI><B>FKTABLE_CAT</B> String => foreign key table catalog (may be null)
* <LI><B>FKTABLE_SCHEM</B> String => foreign key table schema (may be null)
* <LI><B>FKTABLE_NAME</B> String => foreign key table name
* <LI><B>FKCOLUMN_NAME</B> String => foreign key column name
* <LI><B>KEY_SEQ</B> short => sequence number within foreign key
* <LI><B>UPDATE_RULE</B> short => What happens to
* foreign key when primary is updated:
* <UL>
* <LI> importedKeyCascade - change imported key to agree
* with primary key update
* <LI> importedKeyRestrict - do not allow update of primary
* key if it has been imported
* <LI> importedKeySetNull - change imported key to NULL if
* its primary key has been updated
* </UL>
* <LI><B>DELETE_RULE</B> short => What happens to
* the foreign key when primary is deleted.
* <UL>
* <LI> importedKeyCascade - delete rows that import a deleted key
* <LI> importedKeyRestrict - do not allow delete of primary
* key if it has been imported
* <LI> importedKeySetNull - change imported key to NULL if
* its primary key has been deleted
* </UL>
* <LI><B>FK_NAME</B> String => foreign key name (may be null)
* <LI><B>PK_NAME</B> String => primary key name (may be null)
* </OL>
*
* @param catalog a catalog name; "" retrieves those without a catalog
* @param schema a schema name pattern; "" retrieves those
* without a schema
* @param table a table name
* @return ResultSet each row is a primary key column description
* @see #getExportedKeys
*/
public java.sql.ResultSet getImportedKeys(String catalog, String schema, String table) throws SQLException
{
// XXX-Not Implemented
return null;
}
/**
* Get a description of a foreign key columns that reference a
* table's primary key columns (the foreign keys exported by a
* table). They are ordered by FKTABLE_CAT, FKTABLE_SCHEM,
* FKTABLE_NAME, and KEY_SEQ.
*
* <P>Each foreign key column description has the following columns:
* <OL>
* <LI><B>PKTABLE_CAT</B> String => primary key table catalog (may be null)
* <LI><B>PKTABLE_SCHEM</B> String => primary key table schema (may be null)
* <LI><B>PKTABLE_NAME</B> String => primary key table name
* <LI><B>PKCOLUMN_NAME</B> String => primary key column name
* <LI><B>FKTABLE_CAT</B> String => foreign key table catalog (may be null)
* being exported (may be null)
* <LI><B>FKTABLE_SCHEM</B> String => foreign key table schema (may be null)
* being exported (may be null)
* <LI><B>FKTABLE_NAME</B> String => foreign key table name
* being exported
* <LI><B>FKCOLUMN_NAME</B> String => foreign key column name
* being exported
* <LI><B>KEY_SEQ</B> short => sequence number within foreign key
* <LI><B>UPDATE_RULE</B> short => What happens to
* foreign key when primary is updated:
* <UL>
* <LI> importedKeyCascade - change imported key to agree
* with primary key update
* <LI> importedKeyRestrict - do not allow update of primary
* key if it has been imported
* <LI> importedKeySetNull - change imported key to NULL if
* its primary key has been updated
* </UL>
* <LI><B>DELETE_RULE</B> short => What happens to
* the foreign key when primary is deleted.
* <UL>
* <LI> importedKeyCascade - delete rows that import a deleted key
* <LI> importedKeyRestrict - do not allow delete of primary
* key if it has been imported
* <LI> importedKeySetNull - change imported key to NULL if
* its primary key has been deleted
* </UL>
* <LI><B>FK_NAME</B> String => foreign key identifier (may be null)
* <LI><B>PK_NAME</B> String => primary key identifier (may be null)
* </OL>
*
* @param catalog a catalog name; "" retrieves those without a catalog
* @param schema a schema name pattern; "" retrieves those
* without a schema
* @param table a table name
* @return ResultSet each row is a foreign key column description
* @see #getImportedKeys
*/
public java.sql.ResultSet getExportedKeys(String catalog, String schema, String table) throws SQLException
{
// XXX-Not Implemented
return null;
}
/**
* Get a description of the foreign key columns in the foreign key
* table that reference the primary key columns of the primary key
* table (describe how one table imports another's key.) This
* should normally return a single foreign key/primary key pair
* (most tables only import a foreign key from a table once.) They
* are ordered by FKTABLE_CAT, FKTABLE_SCHEM, FKTABLE_NAME, and
* KEY_SEQ.
*
* <P>Each foreign key column description has the following columns:
* <OL>
* <LI><B>PKTABLE_CAT</B> String => primary key table catalog (may be null)
* <LI><B>PKTABLE_SCHEM</B> String => primary key table schema (may be null)
* <LI><B>PKTABLE_NAME</B> String => primary key table name
* <LI><B>PKCOLUMN_NAME</B> String => primary key column name
* <LI><B>FKTABLE_CAT</B> String => foreign key table catalog (may be null)
* being exported (may be null)
* <LI><B>FKTABLE_SCHEM</B> String => foreign key table schema (may be null)
* being exported (may be null)
* <LI><B>FKTABLE_NAME</B> String => foreign key table name
* being exported
* <LI><B>FKCOLUMN_NAME</B> String => foreign key column name
* being exported
* <LI><B>KEY_SEQ</B> short => sequence number within foreign key
* <LI><B>UPDATE_RULE</B> short => What happens to
* foreign key when primary is updated:
* <UL>
* <LI> importedKeyCascade - change imported key to agree
* with primary key update
* <LI> importedKeyRestrict - do not allow update of primary
* key if it has been imported
* <LI> importedKeySetNull - change imported key to NULL if
* its primary key has been updated
* </UL>
* <LI><B>DELETE_RULE</B> short => What happens to
* the foreign key when primary is deleted.
* <UL>
* <LI> importedKeyCascade - delete rows that import a deleted key
* <LI> importedKeyRestrict - do not allow delete of primary
* key if it has been imported
* <LI> importedKeySetNull - change imported key to NULL if
* its primary key has been deleted
* </UL>
* <LI><B>FK_NAME</B> String => foreign key identifier (may be null)
* <LI><B>PK_NAME</B> String => primary key identifier (may be null)
* </OL>
*
* @param catalog a catalog name; "" retrieves those without a catalog
* @param schema a schema name pattern; "" retrieves those
* without a schema
* @param table a table name
* @return ResultSet each row is a foreign key column description
* @see #getImportedKeys
*/
public java.sql.ResultSet getCrossReference(String primaryCatalog, String primarySchema, String primaryTable, String foreignCatalog, String foreignSchema, String foreignTable) throws SQLException
{
// XXX-Not Implemented
return null;
}
/**
* Get a description of all the standard SQL types supported by
* this database. They are ordered by DATA_TYPE and then by how
* closely the data type maps to the corresponding JDBC SQL type.
*
* <P>Each type description has the following columns:
* <OL>
* <LI><B>TYPE_NAME</B> String => Type name
* <LI><B>DATA_TYPE</B> short => SQL data type from java.sql.Types
* <LI><B>PRECISION</B> int => maximum precision
* <LI><B>LITERAL_PREFIX</B> String => prefix used to quote a literal
* (may be null)
* <LI><B>LITERAL_SUFFIX</B> String => suffix used to quote a literal
(may be null)
* <LI><B>CREATE_PARAMS</B> String => parameters used in creating
* the type (may be null)
* <LI><B>NULLABLE</B> short => can you use NULL for this type?
* <UL>
* <LI> typeNoNulls - does not allow NULL values
* <LI> typeNullable - allows NULL values
* <LI> typeNullableUnknown - nullability unknown
* </UL>
* <LI><B>CASE_SENSITIVE</B> boolean=> is it case sensitive?
* <LI><B>SEARCHABLE</B> short => can you use "WHERE" based on this type:
* <UL>
* <LI> typePredNone - No support
* <LI> typePredChar - Only supported with WHERE .. LIKE
* <LI> typePredBasic - Supported except for WHERE .. LIKE
* <LI> typeSearchable - Supported for all WHERE ..
* </UL>
* <LI><B>UNSIGNED_ATTRIBUTE</B> boolean => is it unsigned?
* <LI><B>FIXED_PREC_SCALE</B> boolean => can it be a money value?
* <LI><B>AUTO_INCREMENT</B> boolean => can it be used for an
* auto-increment value?
* <LI><B>LOCAL_TYPE_NAME</B> String => localized version of type name
* (may be null)
* <LI><B>MINIMUM_SCALE</B> short => minimum scale supported
* <LI><B>MAXIMUM_SCALE</B> short => maximum scale supported
* <LI><B>SQL_DATA_TYPE</B> int => unused
* <LI><B>SQL_DATETIME_SUB</B> int => unused
* <LI><B>NUM_PREC_RADIX</B> int => usually 2 or 10
* </OL>
*
* @return ResultSet each row is a SQL type description
*/
public java.sql.ResultSet getTypeInfo() throws SQLException
{
ResultSet rs = connection.ExecSQL("select typname from pg_type");
if(rs!=null) {
Field f[] = new Field[18];
ResultSet r; // ResultSet for the SQL query that we need to do
Vector v = new Vector(); // The new ResultSet tuple stuff
f[0] = new Field(connection, new String("TYPE_NAME"), iVarcharOid, 32);
f[1] = new Field(connection, new String("DATA_TYPE"), iInt2Oid, 2);
f[2] = new Field(connection, new String("PRECISION"), iInt4Oid, 4);
f[3] = new Field(connection, new String("LITERAL_PREFIX"), iVarcharOid, 32);
f[4] = new Field(connection, new String("LITERAL_SUFFIX"), iVarcharOid, 32);
f[5] = new Field(connection, new String("CREATE_PARAMS"), iVarcharOid, 32);
f[6] = new Field(connection, new String("NULLABLE"), iInt2Oid, 2);
f[7] = new Field(connection, new String("CASE_SENSITIVE"), iBoolOid, 1);
f[8] = new Field(connection, new String("SEARCHABLE"), iInt2Oid, 2);
f[9] = new Field(connection, new String("UNSIGNED_ATTRIBUTE"), iBoolOid, 1);
f[10] = new Field(connection, new String("FIXED_PREC_SCALE"), iBoolOid, 1);
f[11] = new Field(connection, new String("AUTO_INCREMENT"), iBoolOid, 1);
f[12] = new Field(connection, new String("LOCAL_TYPE_NAME"), iVarcharOid, 32);
f[13] = new Field(connection, new String("MINIMUM_SCALE"), iInt2Oid, 2);
f[14] = new Field(connection, new String("MAXIMUM_SCALE"), iInt2Oid, 2);
f[15] = new Field(connection, new String("SQL_DATA_TYPE"), iInt4Oid, 4);
f[16] = new Field(connection, new String("SQL_DATETIME_SUB"), iInt4Oid, 4);
f[17] = new Field(connection, new String("NUM_PREC_RADIX"), iInt4Oid, 4);
// cache some results, this will keep memory useage down, and speed
// things up a little.
byte b9[] = "9".getBytes();
byte b10[] = "10".getBytes();
byte bf[] = "f".getBytes();
byte bnn[] = Integer.toString(typeNoNulls).getBytes();
byte bts[] = Integer.toString(typeSearchable).getBytes();
while(rs.next()) {
byte[][] tuple = new byte[18][];
String typname=rs.getString(1);
tuple[0] = typname.getBytes();
tuple[1] = Integer.toString(Field.getSQLType(typname)).getBytes();
tuple[2] = b9; // for now
tuple[6] = bnn; // for now
tuple[7] = bf; // false for now - not case sensitive
tuple[8] = bts;
tuple[9] = bf; // false for now - it's signed
tuple[10] = bf; // false for now - must handle money
tuple[11] = bf; // false for now - handle autoincrement
// 12 - LOCAL_TYPE_NAME is null
// 13 & 14 ?
// 15 & 16 are unused so we return null
tuple[17] = b10; // everything is base 10
v.addElement(tuple);
}
rs.close();
return new ResultSet(connection, f, v, "OK", 1);
}
return null;
}
/**
* Get a description of a table's indices and statistics. They are
* ordered by NON_UNIQUE, TYPE, INDEX_NAME, and ORDINAL_POSITION.
*
* <P>Each index column description has the following columns:
* <OL>
* <LI><B>TABLE_CAT</B> String => table catalog (may be null)
* <LI><B>TABLE_SCHEM</B> String => table schema (may be null)
* <LI><B>TABLE_NAME</B> String => table name
* <LI><B>NON_UNIQUE</B> boolean => Can index values be non-unique?
* false when TYPE is tableIndexStatistic
* <LI><B>INDEX_QUALIFIER</B> String => index catalog (may be null);
* null when TYPE is tableIndexStatistic
* <LI><B>INDEX_NAME</B> String => index name; null when TYPE is
* tableIndexStatistic
* <LI><B>TYPE</B> short => index type:
* <UL>
* <LI> tableIndexStatistic - this identifies table statistics that are
* returned in conjuction with a table's index descriptions
* <LI> tableIndexClustered - this is a clustered index
* <LI> tableIndexHashed - this is a hashed index
* <LI> tableIndexOther - this is some other style of index
* </UL>
* <LI><B>ORDINAL_POSITION</B> short => column sequence number
* within index; zero when TYPE is tableIndexStatistic
* <LI><B>COLUMN_NAME</B> String => column name; null when TYPE is
* tableIndexStatistic
* <LI><B>ASC_OR_DESC</B> String => column sort sequence, "A" => ascending
* "D" => descending, may be null if sort sequence is not supported;
* null when TYPE is tableIndexStatistic
* <LI><B>CARDINALITY</B> int => When TYPE is tableIndexStatisic then
* this is the number of rows in the table; otherwise it is the
* number of unique values in the index.
* <LI><B>PAGES</B> int => When TYPE is tableIndexStatisic then
* this is the number of pages used for the table, otherwise it
* is the number of pages used for the current index.
* <LI><B>FILTER_CONDITION</B> String => Filter condition, if any.
* (may be null)
* </OL>
*
* @param catalog a catalog name; "" retrieves those without a catalog
* @param schema a schema name pattern; "" retrieves those without a schema
* @param table a table name
* @param unique when true, return only indices for unique values;
* when false, return indices regardless of whether unique or not
* @param approximate when true, result is allowed to reflect approximate
* or out of data values; when false, results are requested to be
* accurate
* @return ResultSet each row is an index column description
*/
// Implementation note: This is required for Borland's JBuilder to work
public java.sql.ResultSet getIndexInfo(String catalog, String schema, String table, boolean unique, boolean approximate) throws SQLException
{
// for now, this returns an empty result set.
Field f[] = new Field[13];
ResultSet r; // ResultSet for the SQL query that we need to do
Vector v = new Vector(); // The new ResultSet tuple stuff
f[0] = new Field(connection, new String("TABLE_CAT"), iVarcharOid, 32);
f[1] = new Field(connection, new String("TABLE_SCHEM"), iVarcharOid, 32);
f[2] = new Field(connection, new String("TABLE_NAME"), iVarcharOid, 32);
f[3] = new Field(connection, new String("NON_UNIQUE"), iBoolOid, 1);
f[4] = new Field(connection, new String("INDEX_QUALIFIER"), iVarcharOid, 32);
f[5] = new Field(connection, new String("INDEX_NAME"), iVarcharOid, 32);
f[6] = new Field(connection, new String("TYPE"), iInt2Oid, 2);
f[7] = new Field(connection, new String("ORDINAL_POSITION"), iInt2Oid, 2);
f[8] = new Field(connection, new String("COLUMN_NAME"), iVarcharOid, 32);
f[9] = new Field(connection, new String("ASC_OR_DESC"), iVarcharOid, 32);
f[10] = new Field(connection, new String("CARDINALITY"), iInt4Oid, 4);
f[11] = new Field(connection, new String("PAGES"), iInt4Oid, 4);
f[12] = new Field(connection, new String("FILTER_CONDITION"), iVarcharOid, 32);
return new ResultSet(connection, f, v, "OK", 1);
}
}
src/interfaces/jdbc/postgresql/Driver.java
View file @ 3f59cc08
......@@ -3,6 +3,13 @@ package postgresql;
import java.sql.*;
import java.util.*;
// You will find some mentions to a PSQLException class. This was intended
// to allow internationalisation of error messages. However, this is not
// working quite to plan, so the class exists in the source, but it's not
// quite implemented yet. Peter May 17 1999.
//
//import postgresql.util.PSQLException;
/**
* The Java SQL framework allows for multiple database drivers. Each
* driver should supply a class that implements the Driver interface
......@@ -101,8 +108,10 @@ public class Driver implements java.sql.Driver
con.openConnection (host(), port(), props, database(), url, this);
return (java.sql.Connection)con;
} catch(ClassNotFoundException ex) {
//throw new PSQLException("postgresql.jvm.version",ex);
throw new SQLException("The postgresql.jar file does not contain the correct JDBC classes for this JVM. Try rebuilding.\nException thrown was "+ex.toString());
} catch(Exception ex2) {
//throw new PSQLException("postgresql.unusual",ex2);
throw new SQLException("Something unusual has occured to cause the driver to fail. Please report this exception: "+ex2.toString());
}
// The old call - remove before posting
......@@ -346,6 +355,7 @@ public class Driver implements java.sql.Driver
*/
public static SQLException notImplemented()
{
//return new PSQLException("postgresql.unimplemented");
return new SQLException("This method is not yet implemented.");
}
}
......
src/interfaces/jdbc/postgresql/PG_Stream.java
View file @ 3f59cc08
......@@ -378,6 +378,8 @@ public class PG_Stream
*/
public void close() throws IOException
{
pg_output.write("X\0".getBytes());
pg_output.flush();
pg_output.close();
pg_input.close();
connection.close();
......
src/interfaces/jdbc/postgresql/PreparedStatement.java deleted 100644 → 0
View file @ c2b75c83
package postgresql;
import java.io.*;
import java.math.*;
import java.sql.*;
import java.text.*;
import java.util.*;
import postgresql.largeobject.*;
import postgresql.util.*;
/**
* A SQL Statement is pre-compiled and stored in a PreparedStatement object.
* This object can then be used to efficiently execute this statement multiple
* times.
*
* <p><B>Note:</B> The setXXX methods for setting IN parameter values must
* specify types that are compatible with the defined SQL type of the input
* parameter. For instance, if the IN parameter has SQL type Integer, then
* setInt should be used.
*
* <p>If arbitrary parameter type conversions are required, then the setObject
* method should be used with a target SQL type.
*
* @see ResultSet
* @see java.sql.PreparedStatement
*/
public class PreparedStatement extends Statement implements java.sql.PreparedStatement
{
String sql;
String[] templateStrings;
String[] inStrings;
Connection connection;
/**
* Constructor for the PreparedStatement class.
* Split the SQL statement into segments - separated by the arguments.
* When we rebuild the thing with the arguments, we can substitute the
* args and join the whole thing together.
*
* @param conn the instanatiating connection
* @param sql the SQL statement with ? for IN markers
* @exception SQLException if something bad occurs
*/
public PreparedStatement(Connection connection, String sql) throws SQLException
{
super(connection);
Vector v = new Vector();
boolean inQuotes = false;
int lastParmEnd = 0, i;
this.sql = sql;
this.connection = connection;
for (i = 0; i < sql.length(); ++i)
{
int c = sql.charAt(i);
if (c == '\'')
inQuotes = !inQuotes;
if (c == '?' && !inQuotes)
{
v.addElement(sql.substring (lastParmEnd, i));
lastParmEnd = i + 1;
}
}
v.addElement(sql.substring (lastParmEnd, sql.length()));
templateStrings = new String[v.size()];
inStrings = new String[v.size() - 1];
clearParameters();
for (i = 0 ; i < templateStrings.length; ++i)
templateStrings[i] = (String)v.elementAt(i);
}
/**
* A Prepared SQL query is executed and its ResultSet is returned
*
* @return a ResultSet that contains the data produced by the
* query - never null
* @exception SQLException if a database access error occurs
*/
public java.sql.ResultSet executeQuery() throws SQLException
{
StringBuffer s = new StringBuffer();
int i;
for (i = 0 ; i < inStrings.length ; ++i)
{
if (inStrings[i] == null)
throw new SQLException("No value specified for parameter " + (i + 1));
s.append (templateStrings[i]);
s.append (inStrings[i]);
}
s.append(templateStrings[inStrings.length]);
return super.executeQuery(s.toString()); // in Statement class
}
/**
* Execute a SQL INSERT, UPDATE or DELETE statement. In addition,
* SQL statements that return nothing such as SQL DDL statements can
* be executed.
*
* @return either the row count for INSERT, UPDATE or DELETE; or
* 0 for SQL statements that return nothing.
* @exception SQLException if a database access error occurs
*/
public int executeUpdate() throws SQLException
{
StringBuffer s = new StringBuffer();
int i;
for (i = 0 ; i < inStrings.length ; ++i)
{
if (inStrings[i] == null)
throw new SQLException("No value specified for parameter " + (i + 1));
s.append (templateStrings[i]);
s.append (inStrings[i]);
}
s.append(templateStrings[inStrings.length]);
return super.executeUpdate(s.toString()); // in Statement class
}
/**
* Set a parameter to SQL NULL
*
* <p><B>Note:</B> You must specify the parameters SQL type (although
* PostgreSQL ignores it)
*
* @param parameterIndex the first parameter is 1, etc...
* @param sqlType the SQL type code defined in java.sql.Types
* @exception SQLException if a database access error occurs
*/
public void setNull(int parameterIndex, int sqlType) throws SQLException
{
set(parameterIndex, "null");
}
/**
* Set a parameter to a Java boolean value. The driver converts this
* to a SQL BIT value when it sends it to the database.
*
* @param parameterIndex the first parameter is 1...
* @param x the parameter value
* @exception SQLException if a database access error occurs
*/
public void setBoolean(int parameterIndex, boolean x) throws SQLException
{
set(parameterIndex, x ? "'t'" : "'f'");
}
/**
* Set a parameter to a Java byte value. The driver converts this to
* a SQL TINYINT value when it sends it to the database.
*
* @param parameterIndex the first parameter is 1...
* @param x the parameter value
* @exception SQLException if a database access error occurs
*/
public void setByte(int parameterIndex, byte x) throws SQLException
{
set(parameterIndex, (new Integer(x)).toString());
}
/**
* Set a parameter to a Java short value. The driver converts this
* to a SQL SMALLINT value when it sends it to the database.
*
* @param parameterIndex the first parameter is 1...
* @param x the parameter value
* @exception SQLException if a database access error occurs
*/
public void setShort(int parameterIndex, short x) throws SQLException
{
set(parameterIndex, (new Integer(x)).toString());
}
/**
* Set a parameter to a Java int value. The driver converts this to
* a SQL INTEGER value when it sends it to the database.
*
* @param parameterIndex the first parameter is 1...
* @param x the parameter value
* @exception SQLException if a database access error occurs
*/
public void setInt(int parameterIndex, int x) throws SQLException
{
set(parameterIndex, (new Integer(x)).toString());
}
/**
* Set a parameter to a Java long value. The driver converts this to
* a SQL BIGINT value when it sends it to the database.
*
* @param parameterIndex the first parameter is 1...
* @param x the parameter value
* @exception SQLException if a database access error occurs
*/
public void setLong(int parameterIndex, long x) throws SQLException
{
set(parameterIndex, (new Long(x)).toString());
}
/**
* Set a parameter to a Java float value. The driver converts this
* to a SQL FLOAT value when it sends it to the database.
*
* @param parameterIndex the first parameter is 1...
* @param x the parameter value
* @exception SQLException if a database access error occurs
*/
public void setFloat(int parameterIndex, float x) throws SQLException
{
set(parameterIndex, (new Float(x)).toString());
}
/**
* Set a parameter to a Java double value. The driver converts this
* to a SQL DOUBLE value when it sends it to the database
*
* @param parameterIndex the first parameter is 1...
* @param x the parameter value
* @exception SQLException if a database access error occurs
*/
public void setDouble(int parameterIndex, double x) throws SQLException
{
set(parameterIndex, (new Double(x)).toString());
}
/**
* Set a parameter to a java.lang.BigDecimal value. The driver
* converts this to a SQL NUMERIC value when it sends it to the
* database.
*
* @param parameterIndex the first parameter is 1...
* @param x the parameter value
* @exception SQLException if a database access error occurs
*/
public void setBigDecimal(int parameterIndex, BigDecimal x) throws SQLException
{
set(parameterIndex, x.toString());
}
/**
* Set a parameter to a Java String value. The driver converts this
* to a SQL VARCHAR or LONGVARCHAR value (depending on the arguments
* size relative to the driver's limits on VARCHARs) when it sends it
* to the database.
*
* @param parameterIndex the first parameter is 1...
* @param x the parameter value
* @exception SQLException if a database access error occurs
*/
public void setString(int parameterIndex, String x) throws SQLException
{
// if the passed string is null, then set this column to null
if(x==null)
set(parameterIndex,"null");
else {
StringBuffer b = new StringBuffer();
int i;
b.append('\'');
for (i = 0 ; i < x.length() ; ++i)
{
char c = x.charAt(i);
if (c == '\\' || c == '\'')
b.append((char)'\\');
b.append(c);
}
b.append('\'');
set(parameterIndex, b.toString());
}
}
/**
* Set a parameter to a Java array of bytes. The driver converts this
* to a SQL VARBINARY or LONGVARBINARY (depending on the argument's
* size relative to the driver's limits on VARBINARYs) when it sends
* it to the database.
*
* <p>Implementation note:
* <br>With postgresql, this creates a large object, and stores the
* objects oid in this column.
*
* @param parameterIndex the first parameter is 1...
* @param x the parameter value
* @exception SQLException if a database access error occurs
*/
public void setBytes(int parameterIndex, byte x[]) throws SQLException
{
LargeObjectManager lom = connection.getLargeObjectAPI();
int oid = lom.create();
LargeObject lob = lom.open(oid);
lob.write(x);
lob.close();
setInt(parameterIndex,oid);
}
/**
* Set a parameter to a java.sql.Date value. The driver converts this
* to a SQL DATE value when it sends it to the database.
*
* @param parameterIndex the first parameter is 1...
* @param x the parameter value
* @exception SQLException if a database access error occurs
*/
public void setDate(int parameterIndex, java.sql.Date x) throws SQLException
{
SimpleDateFormat df = new SimpleDateFormat("''"+connection.getDateStyle()+"''");
set(parameterIndex, df.format(x));
// The above is how the date should be handled.
//
// However, in JDK's prior to 1.1.6 (confirmed with the
// Linux jdk1.1.3 and the Win95 JRE1.1.5), SimpleDateFormat seems
// to format a date to the previous day. So the fix is to add a day
// before formatting.
//
// PS: 86400000 is one day
//
//set(parameterIndex, df.format(new java.util.Date(x.getTime()+86400000)));
}
/**
* Set a parameter to a java.sql.Time value. The driver converts
* this to a SQL TIME value when it sends it to the database.
*
* @param parameterIndex the first parameter is 1...));
* @param x the parameter value
* @exception SQLException if a database access error occurs
*/
public void setTime(int parameterIndex, Time x) throws SQLException
{
set(parameterIndex, "'" + x.toString() + "'");
}
/**
* Set a parameter to a java.sql.Timestamp value. The driver converts
* this to a SQL TIMESTAMP value when it sends it to the database.
*
* @param parameterIndex the first parameter is 1...
* @param x the parameter value
* @exception SQLException if a database access error occurs
*/
public void setTimestamp(int parameterIndex, Timestamp x) throws SQLException
{
set(parameterIndex, "'" + x.toString() + "'");
}
/**
* When a very large ASCII value is input to a LONGVARCHAR parameter,
* it may be more practical to send it via a java.io.InputStream.
* JDBC will read the data from the stream as needed, until it reaches
* end-of-file. The JDBC driver will do any necessary conversion from
* ASCII to the database char format.
*
* <P><B>Note:</B> This stream object can either be a standard Java
* stream object or your own subclass that implements the standard
* interface.
*
* @param parameterIndex the first parameter is 1...
* @param x the parameter value
* @param length the number of bytes in the stream
* @exception SQLException if a database access error occurs
*/
public void setAsciiStream(int parameterIndex, InputStream x, int length) throws SQLException
{
setBinaryStream(parameterIndex, x, length);
}
/**
* When a very large Unicode value is input to a LONGVARCHAR parameter,
* it may be more practical to send it via a java.io.InputStream.
* JDBC will read the data from the stream as needed, until it reaches
* end-of-file. The JDBC driver will do any necessary conversion from
* UNICODE to the database char format.
*
* <P><B>Note:</B> This stream object can either be a standard Java
* stream object or your own subclass that implements the standard
* interface.
*
* @param parameterIndex the first parameter is 1...
* @param x the parameter value
* @exception SQLException if a database access error occurs
*/
public void setUnicodeStream(int parameterIndex, InputStream x, int length) throws SQLException
{
setBinaryStream(parameterIndex, x, length);
}
/**
* When a very large binary value is input to a LONGVARBINARY parameter,
* it may be more practical to send it via a java.io.InputStream.
* JDBC will read the data from the stream as needed, until it reaches
* end-of-file.
*
* <P><B>Note:</B> This stream object can either be a standard Java
* stream object or your own subclass that implements the standard
* interface.
*
* @param parameterIndex the first parameter is 1...
* @param x the parameter value
* @exception SQLException if a database access error occurs
*/
public void setBinaryStream(int parameterIndex, InputStream x, int length) throws SQLException
{
throw new SQLException("InputStream as parameter not supported");
}
/**
* In general, parameter values remain in force for repeated used of a
* Statement. Setting a parameter value automatically clears its
* previous value. However, in coms cases, it is useful to immediately
* release the resources used by the current parameter values; this
* can be done by calling clearParameters
*
* @exception SQLException if a database access error occurs
*/
public void clearParameters() throws SQLException
{
int i;
for (i = 0 ; i < inStrings.length ; i++)
inStrings[i] = null;
}
/**
* Set the value of a parameter using an object; use the java.lang
* equivalent objects for integral values.
*
* <P>The given Java object will be converted to the targetSqlType before
* being sent to the database.
*
* <P>note that this method may be used to pass database-specific
* abstract data types. This is done by using a Driver-specific
* Java type and using a targetSqlType of java.sql.Types.OTHER
*
* @param parameterIndex the first parameter is 1...
* @param x the object containing the input parameter value
* @param targetSqlType The SQL type to be send to the database
* @param scale For java.sql.Types.DECIMAL or java.sql.Types.NUMERIC
* types this is the number of digits after the decimal. For
* all other types this value will be ignored.
* @exception SQLException if a database access error occurs
*/
public void setObject(int parameterIndex, Object x, int targetSqlType, int scale) throws SQLException
{
switch (targetSqlType)
{
case Types.TINYINT:
case Types.SMALLINT:
case Types.INTEGER:
case Types.BIGINT:
case Types.REAL:
case Types.FLOAT:
case Types.DOUBLE:
case Types.DECIMAL:
case Types.NUMERIC:
if (x instanceof Boolean)
set(parameterIndex, ((Boolean)x).booleanValue() ? "1" : "0");
else
set(parameterIndex, x.toString());
break;
case Types.CHAR:
case Types.VARCHAR:
case Types.LONGVARCHAR:
setString(parameterIndex, x.toString());
break;
case Types.DATE:
setDate(parameterIndex, (java.sql.Date)x);
break;
case Types.TIME:
setTime(parameterIndex, (Time)x);
break;
case Types.TIMESTAMP:
setTimestamp(parameterIndex, (Timestamp)x);
break;
case Types.OTHER:
setString(parameterIndex, ((PGobject)x).getValue());
break;
default:
throw new SQLException("Unknown Types value");
}
}
public void setObject(int parameterIndex, Object x, int targetSqlType) throws SQLException
{
setObject(parameterIndex, x, targetSqlType, 0);
}
/**
* This stores an Object into a parameter.
* <p>New for 6.4, if the object is not recognised, but it is
* Serializable, then the object is serialised using the
* postgresql.util.Serialize class.
*/
public void setObject(int parameterIndex, Object x) throws SQLException
{
if (x instanceof String)
setString(parameterIndex, (String)x);
else if (x instanceof BigDecimal)
setBigDecimal(parameterIndex, (BigDecimal)x);
else if (x instanceof Short)
setShort(parameterIndex, ((Short)x).shortValue());
else if (x instanceof Integer)
setInt(parameterIndex, ((Integer)x).intValue());
else if (x instanceof Long)
setLong(parameterIndex, ((Long)x).longValue());
else if (x instanceof Float)
setFloat(parameterIndex, ((Float)x).floatValue());
else if (x instanceof Double)
setDouble(parameterIndex, ((Double)x).doubleValue());
else if (x instanceof byte[])
setBytes(parameterIndex, (byte[])x);
else if (x instanceof java.sql.Date)
setDate(parameterIndex, (java.sql.Date)x);
else if (x instanceof Time)
setTime(parameterIndex, (Time)x);
else if (x instanceof Timestamp)
setTimestamp(parameterIndex, (Timestamp)x);
else if (x instanceof Boolean)
setBoolean(parameterIndex, ((Boolean)x).booleanValue());
else if (x instanceof PGobject)
setString(parameterIndex, ((PGobject)x).getValue());
else
setLong(parameterIndex, connection.putObject(x));
}
/**
* Some prepared statements return multiple results; the execute method
* handles these complex statements as well as the simpler form of
* statements handled by executeQuery and executeUpdate
*
* @return true if the next result is a ResultSet; false if it is an
* update count or there are no more results
* @exception SQLException if a database access error occurs
*/
public boolean execute() throws SQLException
{
StringBuffer s = new StringBuffer();
int i;
for (i = 0 ; i < inStrings.length ; ++i)
{
if (inStrings[i] == null)
throw new SQLException("No value specified for parameter " + (i + 1));
s.append (templateStrings[i]);
s.append (inStrings[i]);
}
s.append(templateStrings[inStrings.length]);
return super.execute(s.toString()); // in Statement class
}
/**
* Returns the SQL statement with the current template values
* substituted.
*/
public String toString() {
StringBuffer s = new StringBuffer();
int i;
for (i = 0 ; i < inStrings.length ; ++i)
{
if (inStrings[i] == null)
s.append( '?' );
else
s.append (templateStrings[i]);
s.append (inStrings[i]);
}
s.append(templateStrings[inStrings.length]);
return s.toString();
}
// **************************************************************
// END OF PUBLIC INTERFACE
// **************************************************************
/**
* There are a lot of setXXX classes which all basically do
* the same thing. We need a method which actually does the
* set for us.
*
* @param paramIndex the index into the inString
* @param s a string to be stored
* @exception SQLException if something goes wrong
*/
private void set(int paramIndex, String s) throws SQLException
{
if (paramIndex < 1 || paramIndex > inStrings.length)
throw new SQLException("Parameter index out of range");
inStrings[paramIndex - 1] = s;
}
}
src/interfaces/jdbc/postgresql/ResultSetMetaData.java deleted 100644 → 0
View file @ c2b75c83
package postgresql;
import java.lang.*;
import java.sql.*;
import java.util.*;
import postgresql.*;
/**
* A ResultSetMetaData object can be used to find out about the types and
* properties of the columns in a ResultSet
*
* @see java.sql.ResultSetMetaData
*/
public class ResultSetMetaData implements java.sql.ResultSetMetaData
{
Vector rows;
Field[] fields;
/**
* Initialise for a result with a tuple set and
* a field descriptor set
*
* @param rows the Vector of rows returned by the ResultSet
* @param fields the array of field descriptors
*/
public ResultSetMetaData(Vector rows, Field[] fields)
{
this.rows = rows;
this.fields = fields;
}
/**
* Whats the number of columns in the ResultSet?
*
* @return the number
* @exception SQLException if a database access error occurs
*/
public int getColumnCount() throws SQLException
{
return fields.length;
}
/**
* Is the column automatically numbered (and thus read-only)
* I believe that PostgreSQL does not support this feature.
*
* @param column the first column is 1, the second is 2...
* @return true if so
* @exception SQLException if a database access error occurs
*/
public boolean isAutoIncrement(int column) throws SQLException
{
return false;
}
/**
* Does a column's case matter? ASSUMPTION: Any field that is
* not obviously case insensitive is assumed to be case sensitive
*
* @param column the first column is 1, the second is 2...
* @return true if so
* @exception SQLException if a database access error occurs
*/
public boolean isCaseSensitive(int column) throws SQLException
{
int sql_type = getField(column).getSQLType();
switch (sql_type)
{
case Types.SMALLINT:
case Types.INTEGER:
case Types.FLOAT:
case Types.REAL:
case Types.DOUBLE:
case Types.DATE:
case Types.TIME:
case Types.TIMESTAMP:
return false;
default:
return true;
}
}
/**
* Can the column be used in a WHERE clause? Basically for
* this, I split the functions into two types: recognised
* types (which are always useable), and OTHER types (which
* may or may not be useable). The OTHER types, for now, I
* will assume they are useable. We should really query the
* catalog to see if they are useable.
*
* @param column the first column is 1, the second is 2...
* @return true if they can be used in a WHERE clause
* @exception SQLException if a database access error occurs
*/
public boolean isSearchable(int column) throws SQLException
{
int sql_type = getField(column).getSQLType();
// This switch is pointless, I know - but it is a set-up
// for further expansion.
switch (sql_type)
{
case Types.OTHER:
return true;
default:
return true;
}
}
/**
* Is the column a cash value? 6.1 introduced the cash/money
* type, which haven't been incorporated as of 970414, so I
* just check the type name for both 'cash' and 'money'
*
* @param column the first column is 1, the second is 2...
* @return true if its a cash column
* @exception SQLException if a database access error occurs
*/
public boolean isCurrency(int column) throws SQLException
{
String type_name = getField(column).getTypeName();
return type_name.equals("cash") || type_name.equals("money");
}
/**
* Can you put a NULL in this column? I think this is always
* true in 6.1's case. It would only be false if the field had
* been defined NOT NULL (system catalogs could be queried?)
*
* @param column the first column is 1, the second is 2...
* @return one of the columnNullable values
* @exception SQLException if a database access error occurs
*/
public int isNullable(int column) throws SQLException
{
return columnNullable; // We can always put NULL in
}
/**
* Is the column a signed number? In PostgreSQL, all numbers
* are signed, so this is trivial. However, strings are not
* signed (duh!)
*
* @param column the first column is 1, the second is 2...
* @return true if so
* @exception SQLException if a database access error occurs
*/
public boolean isSigned(int column) throws SQLException
{
int sql_type = getField(column).getSQLType();
switch (sql_type)
{
case Types.SMALLINT:
case Types.INTEGER:
case Types.FLOAT:
case Types.REAL:
case Types.DOUBLE:
return true;
case Types.DATE:
case Types.TIME:
case Types.TIMESTAMP:
return false; // I don't know about these?
default:
return false;
}
}
/**
* What is the column's normal maximum width in characters?
*
* @param column the first column is 1, the second is 2, etc.
* @return the maximum width
* @exception SQLException if a database access error occurs
*/
public int getColumnDisplaySize(int column) throws SQLException
{
int max = getColumnLabel(column).length();
int i;
for (i = 0 ; i < rows.size(); ++i)
{
byte[][] x = (byte[][])(rows.elementAt(i));
if(x[column-1]!=null) {
int xl = x[column - 1].length;
if (xl > max)
max = xl;
}
}
return max;
}
/**
* What is the suggested column title for use in printouts and
* displays? We suggest the ColumnName!
*
* @param column the first column is 1, the second is 2, etc.
* @return the column label
* @exception SQLException if a database access error occurs
*/
public String getColumnLabel(int column) throws SQLException
{
return getColumnName(column);
}
/**
* What's a column's name?
*
* @param column the first column is 1, the second is 2, etc.
* @return the column name
* @exception SQLException if a database access error occurs
*/
public String getColumnName(int column) throws SQLException
{
Field f = getField(column);
if(f!=null)
return f.name;
return "field"+column;
}
/**
* What is a column's table's schema? This relies on us knowing
* the table name....which I don't know how to do as yet. The
* JDBC specification allows us to return "" if this is not
* applicable.
*
* @param column the first column is 1, the second is 2...
* @return the Schema
* @exception SQLException if a database access error occurs
*/
public String getSchemaName(int column) throws SQLException
{
return "";
}
/**
* What is a column's number of decimal digits.
*
* @param column the first column is 1, the second is 2...
* @return the precision
* @exception SQLException if a database access error occurs
*/
public int getPrecision(int column) throws SQLException
{
int sql_type = getField(column).getSQLType();
switch (sql_type)
{
case Types.SMALLINT:
return 5;
case Types.INTEGER:
return 10;
case Types.REAL:
return 8;
case Types.FLOAT:
return 16;
case Types.DOUBLE:
return 16;
case Types.VARCHAR:
return 0;
default:
return 0;
}
}
/**
* What is a column's number of digits to the right of the
* decimal point?
*
* @param column the first column is 1, the second is 2...
* @return the scale
* @exception SQLException if a database access error occurs
*/
public int getScale(int column) throws SQLException
{
int sql_type = getField(column).getSQLType();
switch (sql_type)
{
case Types.SMALLINT:
return 0;
case Types.INTEGER:
return 0;
case Types.REAL:
return 8;
case Types.FLOAT:
return 16;
case Types.DOUBLE:
return 16;
case Types.VARCHAR:
return 0;
default:
return 0;
}
}
/**
* Whats a column's table's name? How do I find this out? Both
* getSchemaName() and getCatalogName() rely on knowing the table
* Name, so we need this before we can work on them.
*
* @param column the first column is 1, the second is 2...
* @return column name, or "" if not applicable
* @exception SQLException if a database access error occurs
*/
public String getTableName(int column) throws SQLException
{
return "";
}
/**
* What's a column's table's catalog name? As with getSchemaName(),
* we can say that if getTableName() returns n/a, then we can too -
* otherwise, we need to work on it.
*
* @param column the first column is 1, the second is 2...
* @return catalog name, or "" if not applicable
* @exception SQLException if a database access error occurs
*/
public String getCatalogName(int column) throws SQLException
{
return "";
}
/**
* What is a column's SQL Type? (java.sql.Type int)
*
* @param column the first column is 1, the second is 2, etc.
* @return the java.sql.Type value
* @exception SQLException if a database access error occurs
* @see postgresql.Field#getSQLType
* @see java.sql.Types
*/
public int getColumnType(int column) throws SQLException
{
return getField(column).getSQLType();
}
/**
* Whats is the column's data source specific type name?
*
* @param column the first column is 1, the second is 2, etc.
* @return the type name
* @exception SQLException if a database access error occurs
*/
public String getColumnTypeName(int column) throws SQLException
{
return getField(column).getTypeName();
}
/**
* Is the column definitely not writable? In reality, we would
* have to check the GRANT/REVOKE stuff for this to be effective,
* and I haven't really looked into that yet, so this will get
* re-visited.
*
* @param column the first column is 1, the second is 2, etc.
* @return true if so
* @exception SQLException if a database access error occurs
*/
public boolean isReadOnly(int column) throws SQLException
{
return false;
}
/**
* Is it possible for a write on the column to succeed? Again, we
* would in reality have to check the GRANT/REVOKE stuff, which
* I haven't worked with as yet. However, if it isn't ReadOnly, then
* it is obviously writable.
*
* @param column the first column is 1, the second is 2, etc.
* @return true if so
* @exception SQLException if a database access error occurs
*/
public boolean isWritable(int column) throws SQLException
{
if (isReadOnly(column))
return false;
else
return true;
}
/**
* Will a write on this column definately succeed? Hmmm...this
* is a bad one, since the two preceding functions have not been
* really defined. I cannot tell is the short answer. I thus
* return isWritable() just to give us an idea.
*
* @param column the first column is 1, the second is 2, etc..
* @return true if so
* @exception SQLException if a database access error occurs
*/
public boolean isDefinitelyWritable(int column) throws SQLException
{
return isWritable(column);
}
// ********************************************************
// END OF PUBLIC INTERFACE
// ********************************************************
/**
* For several routines in this package, we need to convert
* a columnIndex into a Field[] descriptor. Rather than do
* the same code several times, here it is.
*
* @param columnIndex the first column is 1, the second is 2...
* @return the Field description
* @exception SQLException if a database access error occurs
*/
private Field getField(int columnIndex) throws SQLException
{
if (columnIndex < 1 || columnIndex > fields.length)
throw new SQLException("Column index out of range");
return fields[columnIndex - 1];
}
}
src/interfaces/jdbc/postgresql/Statement.java deleted 100644 → 0
View file @ c2b75c83
package postgresql;
import java.sql.*;
/**
* A Statement object is used for executing a static SQL statement and
* obtaining the results produced by it.
*
* <p>Only one ResultSet per Statement can be open at any point in time.
* Therefore, if the reading of one ResultSet is interleaved with the
* reading of another, each must have been generated by different
* Statements. All statement execute methods implicitly close a
* statement's current ResultSet if an open one exists.
*
* @see java.sql.Statement
* @see ResultSet
*/
public class Statement implements java.sql.Statement
{
Connection connection; // The connection who created us
ResultSet result = null; // The current results
SQLWarning warnings = null; // The warnings chain.
int timeout = 0; // The timeout for a query (not used)
boolean escapeProcessing = true;// escape processing flag
/**
* Constructor for a Statement. It simply sets the connection
* that created us.
*
* @param c the Connection instantation that creates us
*/
public Statement (Connection c)
{
connection = c;
}
/**
* Execute a SQL statement that returns a single ResultSet
*
* @param sql typically a static SQL SELECT statement
* @return a ResulSet that contains the data produced by the query
* @exception SQLException if a database access error occurs
*/
public java.sql.ResultSet executeQuery(String sql) throws SQLException
{
this.execute(sql);
while (result != null && !result.reallyResultSet())
result = result.getNext();
if (result == null)
throw new SQLException("no results returned");
return result;
}
/**
* Execute a SQL INSERT, UPDATE or DELETE statement. In addition
* SQL statements that return nothing such as SQL DDL statements
* can be executed
*
* @param sql a SQL statement
* @return either a row count, or 0 for SQL commands
* @exception SQLException if a database access error occurs
*/
public int executeUpdate(String sql) throws SQLException
{
this.execute(sql);
if (result.reallyResultSet())
throw new SQLException("results returned");
return this.getUpdateCount();
}
/**
* In many cases, it is desirable to immediately release a
* Statement's database and JDBC resources instead of waiting
* for this to happen when it is automatically closed. The
* close method provides this immediate release.
*
* <p><B>Note:</B> A Statement is automatically closed when it is
* garbage collected. When a Statement is closed, its current
* ResultSet, if one exists, is also closed.
*
* @exception SQLException if a database access error occurs (why?)
*/
public void close() throws SQLException
{
result = null;
}
/**
* The maxFieldSize limit (in bytes) is the maximum amount of
* data returned for any column value; it only applies to
* BINARY, VARBINARY, LONGVARBINARY, CHAR, VARCHAR and LONGVARCHAR
* columns. If the limit is exceeded, the excess data is silently
* discarded.
*
* @return the current max column size limit; zero means unlimited
* @exception SQLException if a database access error occurs
*/
public int getMaxFieldSize() throws SQLException
{
return 8192; // We cannot change this
}
/**
* Sets the maxFieldSize - NOT! - We throw an SQLException just
* to inform them to stop doing this.
*
* @param max the new max column size limit; zero means unlimited
* @exception SQLException if a database access error occurs
*/
public void setMaxFieldSize(int max) throws SQLException
{
throw new SQLException("Attempt to setMaxFieldSize failed - compile time default");
}
/**
* The maxRows limit is set to limit the number of rows that
* any ResultSet can contain. If the limit is exceeded, the
* excess rows are silently dropped.
*
* @return the current maximum row limit; zero means unlimited
* @exception SQLException if a database access error occurs
*/
public int getMaxRows() throws SQLException
{
return connection.maxrows;
}
/**
* Set the maximum number of rows
*
* @param max the new max rows limit; zero means unlimited
* @exception SQLException if a database access error occurs
* @see getMaxRows
*/
public void setMaxRows(int max) throws SQLException
{
connection.maxrows = max;
}
/**
* If escape scanning is on (the default), the driver will do escape
* substitution before sending the SQL to the database.
*
* @param enable true to enable; false to disable
* @exception SQLException if a database access error occurs
*/
public void setEscapeProcessing(boolean enable) throws SQLException
{
escapeProcessing = enable;
}
/**
* The queryTimeout limit is the number of seconds the driver
* will wait for a Statement to execute. If the limit is
* exceeded, a SQLException is thrown.
*
* @return the current query timeout limit in seconds; 0 = unlimited
* @exception SQLException if a database access error occurs
*/
public int getQueryTimeout() throws SQLException
{
return timeout;
}
/**
* Sets the queryTimeout limit
*
* @param seconds - the new query timeout limit in seconds
* @exception SQLException if a database access error occurs
*/
public void setQueryTimeout(int seconds) throws SQLException
{
timeout = seconds;
}
/**
* Cancel can be used by one thread to cancel a statement that
* is being executed by another thread. However, PostgreSQL is
* a sync. sort of thing, so this really has no meaning - we
* define it as a no-op (i.e. you can't cancel, but there is no
* error if you try.)
*
* @exception SQLException only because thats the spec.
*/
public void cancel() throws SQLException
{
// No-op
}
/**
* The first warning reported by calls on this Statement is
* returned. A Statement's execute methods clear its SQLWarning
* chain. Subsequent Statement warnings will be chained to this
* SQLWarning.
*
* <p>The Warning chain is automatically cleared each time a statement
* is (re)executed.
*
* <p><B>Note:</B> If you are processing a ResultSet then any warnings
* associated with ResultSet reads will be chained on the ResultSet
* object.
*
* @return the first SQLWarning on null
* @exception SQLException if a database access error occurs
*/
public SQLWarning getWarnings() throws SQLException
{
return warnings;
}
/**
* After this call, getWarnings returns null until a new warning
* is reported for this Statement.
*
* @exception SQLException if a database access error occurs (why?)
*/
public void clearWarnings() throws SQLException
{
warnings = null;
}
/**
* setCursorName defines the SQL cursor name that will be used by
* subsequent execute methods. This name can then be used in SQL
* positioned update/delete statements to identify the current row
* in the ResultSet generated by this statement. If a database
* doesn't support positioned update/delete, this method is a
* no-op.
*
* <p><B>Note:</B> By definition, positioned update/delete execution
* must be done by a different Statement than the one which
* generated the ResultSet being used for positioning. Also, cursor
* names must be unique within a Connection.
*
* <p>We throw an additional constriction. There can only be one
* cursor active at any one time.
*
* @param name the new cursor name
* @exception SQLException if a database access error occurs
*/
public void setCursorName(String name) throws SQLException
{
connection.setCursorName(name);
}
/**
* Execute a SQL statement that may return multiple results. We
* don't have to worry about this since we do not support multiple
* ResultSets. You can use getResultSet or getUpdateCount to
* retrieve the result.
*
* @param sql any SQL statement
* @return true if the next result is a ResulSet, false if it is
* an update count or there are no more results
* @exception SQLException if a database access error occurs
*/
public boolean execute(String sql) throws SQLException
{
result = connection.ExecSQL(sql);
return (result != null && result.reallyResultSet());
}
/**
* getResultSet returns the current result as a ResultSet. It
* should only be called once per result.
*
* @return the current result set; null if there are no more
* @exception SQLException if a database access error occurs (why?)
*/
public java.sql.ResultSet getResultSet() throws SQLException
{
return result;
}
/**
* getUpdateCount returns the current result as an update count,
* if the result is a ResultSet or there are no more results, -1
* is returned. It should only be called once per result.
*
* @return the current result as an update count.
* @exception SQLException if a database access error occurs
*/
public int getUpdateCount() throws SQLException
{
if (result == null) return -1;
if (result.reallyResultSet()) return -1;
return result.getResultCount();
}
/**
* getMoreResults moves to a Statement's next result. If it returns
* true, this result is a ResulSet.
*
* @return true if the next ResultSet is valid
* @exception SQLException if a database access error occurs
*/
public boolean getMoreResults() throws SQLException
{
result = result.getNext();
return (result != null && result.reallyResultSet());
}
/**
* Returns the status message from the current Result.<p>
* This is used internally by the driver.
*
* @return status message from backend
*/
public String getResultStatusString()
{
if(result == null)
return null;
return result.getStatusString();
}
}
src/interfaces/jdbc/postgresql/errors.properties 0 → 100644
View file @ 3f59cc08
# This is the default errors
postgresql.jvm.version:The postgresql.jar file does not contain the correct JDBC classes for this JVM. Try rebuilding.\nException thrown was {1}
postgresql.unusual:Something unusual has occured to cause the driver to fail. Please report this exception: {1}
postgresql.unimplemented:This method is not yet implemented.
src/interfaces/jdbc/postgresql/errors_fr.properties 0 → 100644
View file @ 3f59cc08
# This is the default errors
postgresql.jvm.version:Le fichier de postgresql.jar ne contient pas les classes correctes de JDBC pour ce JVM. Try que rebuilding.\nException jetées était {1}
postgresql.unusual:Quelque chose de peu commun s'est produit pour faire échouer le gestionnaire. Veuillez enregistrer cette exception: {1}
postgresql.unimplemented:Cette méthode n'est pas encore appliquée.
src/interfaces/jdbc/postgresql/jdbc1/PreparedStatement.java
View file @ 3f59cc08
......@@ -312,7 +312,7 @@ public class PreparedStatement extends Statement implements java.sql.PreparedSta
*/
public void setDate(int parameterIndex, java.sql.Date x) throws SQLException
{
SimpleDateFormat df = new SimpleDateFormat("''"+connection.getDateStyle()+"''");
SimpleDateFormat df = new SimpleDateFormat("''yyyy-MM-dd''");
set(parameterIndex, df.format(x));
......
src/interfaces/jdbc/postgresql/jdbc1/ResultSet.java
View file @ 3f59cc08
......@@ -386,7 +386,7 @@ public class ResultSet extends postgresql.ResultSet implements java.sql.ResultSe
String s = getString(columnIndex);
if(s==null)
return null;
SimpleDateFormat df = new SimpleDateFormat(connection.getDateStyle());
SimpleDateFormat df = new SimpleDateFormat("yyyy-MM-dd");
try {
return new java.sql.Date(df.parse(s).getTime());
} catch (ParseException e) {
......@@ -443,7 +443,7 @@ public class ResultSet extends postgresql.ResultSet implements java.sql.ResultSe
TimeZone zone = TimeZone.getDefault();
zone.setRawOffset(TZ);
String nm = zone.getID();
s = s.substring(0,18) + nm;
s = s.substring(0,19) + nm;
try {
java.util.Date d = df.parse(s);
return new Timestamp(d.getTime());
......
src/interfaces/jdbc/postgresql/jdbc2/PreparedStatement.java
View file @ 3f59cc08
......@@ -312,7 +312,7 @@ public class PreparedStatement extends Statement implements java.sql.PreparedSta
*/
public void setDate(int parameterIndex, java.sql.Date x) throws SQLException
{
SimpleDateFormat df = new SimpleDateFormat("''"+connection.getDateStyle()+"''");
SimpleDateFormat df = new SimpleDateFormat("''yyyy-MM-dd''");
set(parameterIndex, df.format(x));
......
src/interfaces/jdbc/postgresql/jdbc2/ResultSet.java
View file @ 3f59cc08
......@@ -388,7 +388,7 @@ public class ResultSet extends postgresql.ResultSet implements java.sql.ResultSe
String s = getString(columnIndex);
if(s==null)
return null;
SimpleDateFormat df = new SimpleDateFormat(connection.getDateStyle());
SimpleDateFormat df = new SimpleDateFormat("yyyy-MM-dd");
try {
return new java.sql.Date(df.parse(s).getTime());
} catch (ParseException e) {
......@@ -445,7 +445,7 @@ public class ResultSet extends postgresql.ResultSet implements java.sql.ResultSe
TimeZone zone = TimeZone.getDefault();
zone.setRawOffset(TZ);
String nm = zone.getID();
s = s.substring(0,18) + nm;
s = s.substring(0,19) + nm;
try {
java.util.Date d = df.parse(s);
return new Timestamp(d.getTime());
......
src/interfaces/jdbc/postgresql/jdbc2/Statement.java
View file @ 3f59cc08
......@@ -6,6 +6,7 @@ package postgresql.jdbc2;
// postgresql.jdbc1 package.
import java.sql.*;
import java.util.Vector;
/**
* A Statement object is used for executing a static SQL statement and
......@@ -27,6 +28,7 @@ public class Statement implements java.sql.Statement
SQLWarning warnings = null; // The warnings chain.
int timeout = 0; // The timeout for a query (not used)
boolean escapeProcessing = true;// escape processing flag
private Vector batch=null;
/**
* Constructor for a Statement. It simply sets the connection
......@@ -325,17 +327,35 @@ public class Statement implements java.sql.Statement
public void addBatch(String sql) throws SQLException
{
throw postgresql.Driver.notImplemented();
if(batch==null)
batch=new Vector();
batch.addElement(sql);
}
public void clearBatch() throws SQLException
{
throw postgresql.Driver.notImplemented();
if(batch!=null)
batch.removeAllElements();
}
public int[] executeBatch() throws SQLException
{
throw postgresql.Driver.notImplemented();
if(batch==null || batch.isEmpty())
throw new SQLException("The batch is empty.");
int size=batch.size();
int[] result=new int[size];
int i=0;
this.execute("begin"); // PTM: check this when autoCommit is false
try {
for(i=0;i<size;i++)
result[i]=this.executeUpdate((String)batch.elementAt(i));
this.execute("commit"); // PTM: check this
} catch(SQLException e) {
this.execute("abort"); // PTM: check this
throw new SQLException("The result "+i+" \""+batch.elementAt(i)+"\" aborted.");
}
return result;
}
public java.sql.Connection getConnection() throws SQLException
......
src/interfaces/jdbc/postgresql/util/PSQLException.java 0 → 100644
View file @ 3f59cc08
package postgresql.util;
import java.sql.*;
import java.text.*;
import java.util.*;
/**
* This class extends SQLException, and provides our internationalisation handling
*/
public class PSQLException extends SQLException
{
private String message;
// Cache for future errors
static ResourceBundle bundle;
/**
* This provides the same functionality to SQLException
* @param error Error string
*/
public PSQLException(String error) {
super();
translate(error,null);
}
/**
* A more generic entry point.
* @param error Error string or standard message id
* @param args Array of arguments
*/
public PSQLException(String error,Object[] args)
{
super();
translate(error,args);
}
/**
* Helper version for 1 arg
*/
public PSQLException(String error,Object arg)
{
super();
Object[] argv = new Object[1];
argv[0] = arg;
translate(error,argv);
}
/**
* This does the actual translation
*/
private void translate(String id,Object[] args)
{
if(bundle == null) {
try {
bundle = ResourceBundle.getBundle("postgresql.errors");
} catch(MissingResourceException e) {
}
}
// Now look up a localized message. If one is not found, then use
// the supplied message instead.
message = null;
try {
message = bundle.getString(id);
} catch(MissingResourceException e) {
message = id;
}
// Expand any arguments
if(args!=null)
message = MessageFormat.format(message,args);
}
/**
* Overides Throwable
*/
public String getLocalizedMessage()
{
return message;
}
/**
* Overides Throwable
*/
public String getMessage()
{
return message;
}
/**
* Overides Object
*/
public String toString()
{
return message;
}
}
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