org.openmdx.kernel.lightweight.transaction.LightweightUserTransaction Maven / Gradle / Ivy
/*
* ====================================================================
* Project: openMDX, http://www.openmdx.org/
* Description: Lightweight User Transaction
* Owner: OMEX AG, Switzerland, http://www.omex.ch
* ====================================================================
*
* This software is published under the BSD license as listed below.
*
* Copyright (c) 2005-2009, OMEX AG, Switzerland
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* * Neither the name of the openMDX team nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
* CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
* TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
* ------------------
*
* This product includes software developed by the Apache Software
* Foundation (http://www.apache.org/).
*/
package org.openmdx.kernel.lightweight.transaction;
import javax.transaction.HeuristicMixedException;
import javax.transaction.HeuristicRollbackException;
import javax.transaction.NotSupportedException;
import javax.transaction.RollbackException;
import javax.transaction.SystemException;
import javax.transaction.TransactionManager;
import javax.transaction.UserTransaction;
/**
* User Transaction Implementation
*
* The lightweight user transaction is a thread-safe proxy.
*/
public class LightweightUserTransaction implements UserTransaction {
/**
* Constructor
*
* @param transactionManager
*/
private LightweightUserTransaction(
TransactionManager transactionManager
){
this.transactionManager = transactionManager;
}
/**
* The transaction manager to delegate to.
*/
private final TransactionManager transactionManager;
/**
* A lightweight user transaction instance may be shared
*/
private static UserTransaction instance;
/**
* A lightweight user transaction instance may be shared
*
* @return Returns a lightweight user transaction instance
*/
public static UserTransaction getInstance() {
if(LightweightUserTransaction.instance == null) {
LightweightUserTransaction.instance = new LightweightUserTransaction(LightweightTransactionManager.getInstance());
}
return LightweightUserTransaction.instance;
}
/* (non-Javadoc)
* @see javax.transaction.UserTransaction#begin()
*/
public void begin() throws NotSupportedException, SystemException {
this.transactionManager.begin();
}
/* (non-Javadoc)
* @see javax.transaction.UserTransaction#commit()
*/
public void commit(
) throws RollbackException, HeuristicMixedException,
HeuristicRollbackException, SecurityException,
IllegalStateException, SystemException
{
this.transactionManager.commit();
}
/* (non-Javadoc)
* @see javax.transaction.UserTransaction#rollback()
*/
public void rollback(
) throws IllegalStateException, SecurityException, SystemException {
this.transactionManager.rollback();
}
/* (non-Javadoc)
* @see javax.transaction.UserTransaction#setRollbackOnly()
*/
public void setRollbackOnly() throws IllegalStateException, SystemException {
this.transactionManager.setRollbackOnly();
}
/* (non-Javadoc)
* @see javax.transaction.UserTransaction#getStatus()
*/
public int getStatus() throws SystemException {
return this.transactionManager.getStatus();
}
/* (non-Javadoc)
* @see javax.transaction.UserTransaction#setTransactionTimeout(int)
*/
public void setTransactionTimeout(int timeout) throws SystemException {
this.transactionManager.setTransactionTimeout(timeout);
}
}