package org.apache.ojb.jdo;
/* Copyright 2003-2005 The Apache Software Foundation
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
import org.apache.ojb.otm.OTMKit;
import org.apache.ojb.otm.OTMConnection;
import javax.jdo.Transaction;
import javax.jdo.PersistenceManager;
import javax.jdo.JDOUserException;
import javax.jdo.JDOUnsupportedOptionException;
import javax.transaction.Synchronization;
/**
* @author <a href="mailto:mattbaird@yahoo.com">Matthew Baird</a>
* @author <a href="mailto:brianm@apache.org">Brian McCallister</a>
*/
public class TransactionImpl implements Transaction
{
private PersistenceManager m_pm;
private OTMKit m_kit;
private OTMConnection m_conn;
public TransactionImpl(PersistenceManager pm, OTMKit kit, OTMConnection conn)
{
m_pm = pm;
m_conn = conn;
m_kit = kit;
}
public void begin()
{
if (m_kit.getTransaction(m_conn).isInProgress())
{
throw new JDOUserException("Transaction already in progress");
}
m_kit.getTransaction(m_conn).begin();
}
public void commit()
{
if (!m_kit.getTransaction(m_conn).isInProgress())
{
throw new JDOUserException("Transaction not in progress");
}
m_kit.getTransaction(m_conn).commit();
}
public void rollback()
{
if (!m_kit.getTransaction(m_conn).isInProgress())
{
throw new JDOUserException("Transaction not in progress");
}
m_kit.getTransaction(m_conn).rollback();
}
public boolean isActive()
{
return m_kit.getTransaction(m_conn).isInProgress();
}
public void setNontransactionalRead(boolean b)
{
throw new javax.jdo.JDOUnsupportedOptionException("Unsupported");
}
public boolean getNontransactionalRead()
{
return false;
}
public void setNontransactionalWrite(boolean b)
{
throw new javax.jdo.JDOUnsupportedOptionException("Unsupported");
}
public boolean getNontransactionalWrite()
{
return false;
}
/**
* @todo figure out what to do if someone doesn't want this!
*/
public void setRetainValues(boolean b)
{
// umh, this is always true.
}
public boolean getRetainValues()
{
return true;
}
/**
* @todo implement
*/
public void setRestoreValues(boolean b)
{
throw new JDOUnsupportedOptionException("Not Yet Implemented");
}
/**
* @todo implement
*/
public boolean getRestoreValues()
{
return false;
}
/**
* @todo implement
*/
public void setOptimistic(boolean b)
{
throw new JDOUnsupportedOptionException("Not yet implemented");
}
/**
* @todo implement
*/
public boolean getOptimistic()
{
return false;
}
/**
* @todo figure out how to implement
* @param synchronization
*/
public void setSynchronization(Synchronization synchronization)
{
throw new JDOUnsupportedOptionException("Not Yet Implemented");
}
/**
* @todo figure out how to implement
*/
public Synchronization getSynchronization()
{
throw new JDOUnsupportedOptionException("Not Yet Implemented");
}
public PersistenceManager getPersistenceManager()
{
return m_pm;
}
}