/*
* Copyright 2000-2001,2004 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.
*/
package org.apache.jetspeed.components.persistence.store.ojb.otm;
import java.util.ArrayList;
import java.util.List;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.jetspeed.components.persistence.store.PersistenceStore;
import org.apache.jetspeed.components.persistence.store.Transaction;
import org.apache.jetspeed.components.persistence.store.TransactionEventListener;
import org.apache.jetspeed.components.persistence.store.impl.TransactionEventInvoker;
import org.apache.ojb.otm.OTMConnection;
import org.apache.ojb.otm.OTMKit;
/**
* <p>
* OTMTransactionImpl
* </p>
*
* @
* @author <a href="mailto:weaver@apache.org">Scott T. Weaver </a>
* @version $ $
*
*/
public class OTMTransactionImpl implements Transaction
{
private OTMConnection conn;
private OTMKit kit;
private List eventListeners;
private TransactionEventInvoker invoker;
private OTMStoreImpl store;
private static final Log log = LogFactory.getLog(OTMTransactionImpl.class);
public OTMTransactionImpl(OTMConnection conn, OTMKit kit, PersistenceStore store)
{
if (conn == null)
{
throw new IllegalArgumentException("The OTM Connection cannot be null.");
}
if (kit == null)
{
throw new IllegalArgumentException("The OTM kit cannot be null.");
}
if (store == null)
{
throw new IllegalArgumentException("The PersistenceStore cannot be null.");
}
eventListeners = new ArrayList();
this.store = (OTMStoreImpl)store;
this.kit = kit;
this.conn = conn;
invoker = new TransactionEventInvoker(eventListeners, store);
}
/**
* <p>
* begin
* </p>
*
* @see org.apache.jetspeed.components.persistence.store.Transaction#begin()
*
*/
public void begin()
{
org.apache.ojb.otm.core.Transaction OTMTx = kit.getTransaction(conn);
if (!OTMTx.isInProgress())
{
invoker.beforeBegin();
OTMTx.begin();
invoker.afterBegin();
}
}
/**
* <p>
* commit
* </p>
*
* @see org.apache.jetspeed.components.persistence.store.Transaction#commit()
*
*/
public void commit()
{
org.apache.ojb.otm.core.Transaction OTMTx = kit.getTransaction(conn);
invoker.beforeCommit();
OTMTx.commit();
store.setTransaction(null);
OTMTx = null;
invoker.afterCommit();
}
/**
* <p>
* rollback
* </p>
*
* @see org.apache.jetspeed.components.persistence.store.Transaction#rollback()
*
*/
public void rollback()
{
org.apache.ojb.otm.core.Transaction OTMTx = kit.getTransaction(conn);
if (OTMTx != null && OTMTx.isInProgress())
{
invoker.beforeRollback();
OTMTx.rollback();
invoker.afterRollback();
}
else
{
log.warn("OTM Transaction was NOT rolled back because no transaction was in progress");
}
}
/**
* <p>
* isOpen
* </p>
*
* @see org.apache.jetspeed.components.persistence.store.Transaction#isOpen()
* @return
*/
public boolean isOpen()
{
org.apache.ojb.otm.core.Transaction OTMTx = kit.getTransaction(conn);
return OTMTx.isInProgress();
}
/**
* <p>
* getWrappedTransaction
* </p>
*
* @see org.apache.jetspeed.components.persistence.store.Transaction#getWrappedTransaction()
* @return
*/
public Object getWrappedTransaction()
{
org.apache.ojb.otm.core.Transaction OTMTx = kit.getTransaction(conn);
return OTMTx;
}
/**
* <p>
* addEventListener
* </p>
*
* @see org.apache.jetspeed.components.persistence.store.Transaction#addEventListener(org.apache.jetspeed.components.persistence.store.TransactionEventListener)
* @param listener
*/
public void addEventListener(TransactionEventListener listener)
{
eventListeners.add(listener);
}
/**
* <p>
* checkpoint
* </p>
*
* @see org.apache.jetspeed.components.persistence.store.Transaction#checkpoint()
*
*/
public void checkpoint()
{
org.apache.ojb.otm.core.Transaction OTMTx = kit.getTransaction(conn);
OTMTx.checkpoint();
}
}