/*
* JBoss, Home of Professional Open Source
* Copyright 2006, Red Hat Middleware LLC, and individual contributors
* as indicated by the @author tags.
* See the copyright.txt in the distribution for a
* full listing of individual contributors.
* This copyrighted material is made available to anyone wishing to use,
* modify, copy, or redistribute it subject to the terms and conditions
* of the GNU Lesser General Public License, v. 2.1.
* This program is distributed in the hope that it will be useful, but WITHOUT A
* WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
* PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.
* You should have received a copy of the GNU Lesser General Public License,
* v.2.1 along with this distribution; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
* MA 02110-1301, USA.
*
* (C) 2005-2006,
* @author JBoss Inc.
*/
/*
* Copyright (C) 1998, 1999, 2000,
*
* Arjuna Solutions Limited,
* Newcastle upon Tyne,
* Tyne and Wear,
* UK.
*
* $Id: oracle_9_0.java 2342 2006-03-30 13:06:17Z $
*/
package com.arjuna.ats.internal.jdbc.drivers.modifiers;
import com.arjuna.ats.jdbc.logging.jdbcLogger;
import com.arjuna.ats.jta.xa.XAModifier;
import com.arjuna.ats.jta.xa.XidImple;
import com.arjuna.ats.jta.exceptions.NotImplementedException;
import java.util.*;
import java.sql.*;
import javax.sql.*;
import javax.transaction.xa.Xid;
import oracle.jdbc.xa.OracleXid;
import java.sql.SQLException;
/*
* This is a stateless class to allow us to get round
* problems in Oracle. For example, they can't work with
* an arbitrary implementation of Xid - it has to be their
* own implementation!
*/
public class oracle_9_0 implements XAModifier, ConnectionModifier
{
public String initialise (String dbName)
{
int index = dbName.indexOf(extensions.reuseConnectionTrue);
int end = extensions.reuseConnectionTrue.length();
if (index != -1)
_reuseConnection = true;
else
{
index = dbName.indexOf(extensions.reuseConnectionFalse);
end = extensions.reuseConnectionFalse.length();
}
/*
* If at start, then this must be a JNDI URL. So remove component.
*/
if (index != 0)
return dbName;
else
return dbName.substring(end + 1); // remember colon
}
public Xid createXid (XidImple xid) throws SQLException, NotImplementedException
{
try
{
return new OracleXid(xid.getFormatId(), xid.getGlobalTransactionId(),
xid.getBranchQualifier());
}
catch (Exception e)
{
throw new SQLException(e.toString());
}
}
public XAConnection getConnection (XAConnection conn) throws SQLException, NotImplementedException
{
/* We don't want to call close() on the connection any more. */
return null;
}
public boolean supportsMultipleConnections () throws SQLException, NotImplementedException
{
return true;
}
/*
* @message com.arjuna.ats.internal.jdbc.drivers.modifiers.notSupported Oracle does not support isolation level
*/
public void setIsolationLevel (Connection conn, int level) throws SQLException, NotImplementedException
{
/*
* Not supported by oracle 9 at this level. Must be set during the
* xa protocol.
*/
switch (level)
{
case Connection.TRANSACTION_SERIALIZABLE:
case Connection.TRANSACTION_READ_COMMITTED:
break;
case Connection.TRANSACTION_REPEATABLE_READ:
case Connection.TRANSACTION_READ_UNCOMMITTED:
default:
throw new SQLException(jdbcLogger.logMesg.getString("com.arjuna.ats.internal.jdbc.drivers.modifiers.notSupported")+level);
}
_isolationLevel = level;
}
public int xaStartParameters (int level) throws SQLException, NotImplementedException
{
int extraFlag = 0;
switch (_isolationLevel)
{
case Connection.TRANSACTION_SERIALIZABLE:
extraFlag = oracle.jdbc.xa.XAResource.ORATMSERIALIZABLE;
break;
case Connection.TRANSACTION_READ_COMMITTED: // default so do nothing
break;
case Connection.TRANSACTION_REPEATABLE_READ:
case Connection.TRANSACTION_READ_UNCOMMITTED:
default:
throw new SQLException(jdbcLogger.logMesg.getString("com.arjuna.ats.internal.jdbc.drivers.modifiers.notSupported")+level);
}
return level | extraFlag;
}
private boolean _reuseConnection = true;
private static int _isolationLevel = oracle.jdbc.xa.XAResource.ORATMSERIALIZABLE;
}