org.springframework.orm.hibernate3.SpringTransactionFactory.java Source code

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Here is the source code for org.springframework.orm.hibernate3.SpringTransactionFactory.java

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/*
 * Copyright 2002-2012 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.springframework.orm.hibernate3;

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.
     */
    @Override
    public ConnectionReleaseMode getDefaultReleaseMode() {
        return ConnectionReleaseMode.ON_CLOSE;
    }

    @Override
    public Transaction createTransaction(JDBCContext jdbcContext, Context transactionContext) {
        return new JDBCTransaction(jdbcContext, transactionContext);
    }

    @Override
    public void configure(Properties props) {
    }

    @Override
    public boolean isTransactionManagerRequired() {
        return false;
    }

    @Override
    public boolean areCallbacksLocalToHibernateTransactions() {
        return true;
    }

    @Override
    public boolean isTransactionInProgress(JDBCContext jdbcContext, Context transactionContext,
            Transaction transaction) {

        return (transaction != null && transaction.isActive())
                || TransactionSynchronizationManager.isActualTransactionActive();
    }

}