/* RCS $PostgreSQL: pgsql/src/corba/CosQueryCollection.idl,v 1.3 2003/11/29 22:40:52 pgsql Exp $
 *
 * ----------------------------------------------------------------------------
 * This is unmarked software provided by the Object Management Group,Inc. (OMG)
 * ----------------------------------------------------------------------------
 */


/**
 * CosQueryCollection is the Common Object Services Specification query
 * query colleciton module as it it appears in COSS1, v1.0.
 */


#ifndef CosQueryCollection_idl
#define CosQueryCollection_idl

module CosQueryCollection {

  exception ElementInvalid {};
  exception IteratorInvalid {};
  exception PositionInvalid {};

  typedef string Istring;
  struct NVPair {
    Istring name;
    any value;
  };

  typedef sequence<NVPair> ParameterList;

  interface Collection;
  interface Iterator;

  interface CollectionFactory {
    Collection create (in ParameterList params);
  };

  interface Collection {

    readonly attribute long cardinality;

    void add_element (in any element)
      raises(ElementInvalid);

    void add_all_elements (in Collection elements)
      raises(ElementInvalid);

    void insert_element_at (in any element, in Iterator where)
      raises(IteratorInvalid,
	     ElementInvalid);

    void replace_element_at (in any element, in Iterator  where)
      raises(IteratorInvalid,
	     PositionInvalid,
	     ElementInvalid);

    void remove_element_at (in Iterator where)
      raises(IteratorInvalid,
	     PositionInvalid);

    void remove_all_elements ();

    any retrieve_element_at (in Iterator where)
      raises(IteratorInvalid,
	     PositionInvalid);

    Iterator create_iterator ();

  };

  interface Iterator {
    any next ()
      raises(IteratorInvalid,
	     PositionInvalid);
    void reset ();
    boolean more ();
  };

};

#endif // CosQueryCollection_idl

