/*
* Copyright 2002-2008 the original author or authors.
*
* 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.jbpm.pvm.internal.tx;
import java.util.Properties;
import org.hibernate.ConnectionReleaseMode;
import org.hibernate.Transaction;
import org.hibernate.jdbc.JDBCContext;
import org.hibernate.transaction.JDBCTransaction;
import org.hibernate.transaction.TransactionFactory;
import org.springframework.transaction.support.TransactionSynchronizationManager;
/**
* Spring-aware implementation of the Hibernate TransactionFactory interface, aware of
* Spring-synchronized transactions (in particular Spring-managed JTA transactions)
* and asking for default release mode ON_CLOSE. Otherwise identical to Hibernate's
* default {@link org.hibernate.transaction.JDBCTransactionFactory} implementation.
*
* @author Juergen Hoeller
* @since 2.5.4
* @see org.springframework.transaction.support.TransactionSynchronizationManager
* @see org.hibernate.transaction.JDBCTransactionFactory
*/
public class SpringTransactionFactory implements TransactionFactory {
/**
* Sets connection release mode "on_close" as default.
* <p>This was the case for Hibernate 3.0; Hibernate 3.1 changed
* it to "auto" (i.e. "after_statement" or "after_transaction").
* However, for Spring's resource management (in particular for
* HibernateTransactionManager), "on_close" is the better default.
*/
public ConnectionReleaseMode getDefaultReleaseMode() {
return ConnectionReleaseMode.ON_CLOSE;
}
public Transaction createTransaction(JDBCContext jdbcContext, Context transactionContext) {
return new JDBCTransaction(jdbcContext, transactionContext);
}
public void configure(Properties props) {
}
public boolean isTransactionManagerRequired() {
return false;
}
public boolean areCallbacksLocalToHibernateTransactions() {
return true;
}
public boolean isTransactionInProgress(
JDBCContext jdbcContext, Context transactionContext, Transaction transaction) {
for (StackTraceElement stackTraceElement: new Exception().getStackTrace()) {
if (stackTraceElement.getClassName().equals(SpringTransactionInterceptor.class.getName())) {
return true;
}
}
return (transaction != null && transaction.isActive());
}
}