001/*
002 * Copyright 2002-2014 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.hibernate4;
018
019import org.hibernate.HibernateException;
020import org.hibernate.Session;
021
022import org.springframework.transaction.support.TransactionSynchronizationAdapter;
023
024/**
025 * Simple synchronization adapter that propagates a {@code flush()} call
026 * to the underlying Hibernate Session. Used in combination with JTA.
027 *
028 * @author Juergen Hoeller
029 * @since 3.1
030 */
031public class SpringFlushSynchronization extends TransactionSynchronizationAdapter {
032
033        private final Session session;
034
035
036        public SpringFlushSynchronization(Session session) {
037                this.session = session;
038        }
039
040
041        @Override
042        public void flush() {
043                try {
044                        SessionFactoryUtils.logger.debug("Flushing Hibernate Session on explicit request");
045                        this.session.flush();
046                }
047                catch (HibernateException ex) {
048                        throw SessionFactoryUtils.convertHibernateAccessException(ex);
049                }
050        }
051
052
053        @Override
054        public boolean equals(Object obj) {
055                return (obj instanceof SpringFlushSynchronization &&
056                                this.session == ((SpringFlushSynchronization) obj).session);
057        }
058
059        @Override
060        public int hashCode() {
061                return this.session.hashCode();
062        }
063
064}