001/*
002 * Copyright 2002-2016 the original author or authors.
003 *
004 * Licensed under the Apache License, Version 2.0 (the "License");
005 * you may not use this file except in compliance with the License.
006 * You may obtain a copy of the License at
007 *
008 *      https://www.apache.org/licenses/LICENSE-2.0
009 *
010 * Unless required by applicable law or agreed to in writing, software
011 * distributed under the License is distributed on an "AS IS" BASIS,
012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013 * See the License for the specific language governing permissions and
014 * limitations under the License.
015 */
016
017package org.springframework.orm.hibernate5;
018
019import org.hibernate.FlushMode;
020import org.hibernate.Session;
021import org.hibernate.context.internal.JTASessionContext;
022import org.hibernate.engine.spi.SessionFactoryImplementor;
023
024import org.springframework.transaction.support.TransactionSynchronizationManager;
025
026/**
027 * Spring-specific subclass of Hibernate's JTASessionContext,
028 * setting {@code FlushMode.MANUAL} for read-only transactions.
029 *
030 * @author Juergen Hoeller
031 * @since 4.2
032 */
033@SuppressWarnings("serial")
034public class SpringJtaSessionContext extends JTASessionContext {
035
036        public SpringJtaSessionContext(SessionFactoryImplementor factory) {
037                super(factory);
038        }
039
040        @Override
041        @SuppressWarnings("deprecation")
042        protected Session buildOrObtainSession() {
043                Session session = super.buildOrObtainSession();
044                if (TransactionSynchronizationManager.isCurrentTransactionReadOnly()) {
045                        session.setFlushMode(FlushMode.MANUAL);
046                }
047                return session;
048        }
049
050}