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package org.postgresql;
import java.sql.*;
import java.util.Properties;
import java.util.Vector;
import org.postgresql.core.Encoding;
import org.postgresql.fastpath.Fastpath;
import org.postgresql.largeobject.LargeObjectManager;
/* $Header: /cvsroot/pgsql/src/interfaces/jdbc/org/postgresql/Attic/PGConnection.java,v 1.3 2002/09/06 21:23:05 momjian Exp $
* This interface defines PostgreSQL extentions to the java.sql.Connection interface.
* Any java.sql.Connection object returned by the driver will also implement this
* interface
*/
public interface PGConnection
{
/*
* Get the character encoding to use for this connection.
*/
public Encoding getEncoding() throws SQLException;
/*
* This method returns the java.sql.Types type for a postgres datatype name
*/
public int getSQLType(String pgTypeName) throws SQLException;
/*
* This returns the java.sql.Types type for a postgres datatype OID
*/
public int getSQLType(int oid) throws SQLException;
/*
* This returns the postgres datatype name from the
* postgres datatype OID
*/
public String getPGType(int oid) throws SQLException;
/*
* This returns the postgres datatype OID from the
* postgres datatype name
*/
public int getPGType(String typeName) throws SQLException;
/*
* This returns the LargeObject API for the current connection.
*/
public LargeObjectManager getLargeObjectAPI() throws SQLException;
/*
* This returns the Fastpath API for the current connection.
*/
public Fastpath getFastpathAPI() throws SQLException;
/*
* This method is used internally to return an object based around
* org.postgresql's more unique data types.
*
* <p>It uses an internal Hashtable to get the handling class. If the
* type is not supported, then an instance of org.postgresql.util.PGobject
* is returned.
*
* You can use the getValue() or setValue() methods to handle the returned
* object. Custom objects can have their own methods.
*
* @return PGobject for this type, and set to value
* @exception SQLException if value is not correct for this type
* @see org.postgresql.util.Serialize
*/
public Object getObject(String type, String value) throws SQLException;
/*
* This method returns any notifications that have been received
* since the last call to this method.
* Returns null if there have been no notifications.
*/
public PGNotification[] getNotifications();
}
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