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.hibernate3.support; 018 019import org.aopalliance.intercept.MethodInterceptor; 020import org.aopalliance.intercept.MethodInvocation; 021import org.hibernate.FlushMode; 022import org.hibernate.HibernateException; 023import org.hibernate.Session; 024import org.hibernate.SessionFactory; 025 026import org.springframework.beans.factory.InitializingBean; 027import org.springframework.dao.DataAccessResourceFailureException; 028import org.springframework.transaction.support.TransactionSynchronizationManager; 029 030/** 031 * Simple AOP Alliance {@link MethodInterceptor} implementation that binds a new 032 * Hibernate {@link Session} for each method invocation, if none bound before. 033 * 034 * <p>This is a simple Hibernate Session scoping interceptor along the lines of 035 * {@link OpenSessionInViewInterceptor}, just for use with AOP setup instead of 036 * MVC setup. It opens a new {@link Session} with flush mode "MANUAL" since the 037 * Session is only meant for reading, except when participating in a transaction. 038 * 039 * <p>Note: This can serve as a streamlined alternative to the outdated 040 * {@link org.springframework.orm.hibernate3.HibernateInterceptor}, providing 041 * plain Session binding without any automatic exception translation or the like. 042 * 043 * @author Juergen Hoeller 044 * @since 4.0.2 045 * @see OpenSessionInViewInterceptor 046 * @see OpenSessionInViewFilter 047 * @see org.springframework.orm.hibernate3.HibernateTransactionManager 048 * @see org.springframework.transaction.support.TransactionSynchronizationManager 049 * @see org.hibernate.SessionFactory#getCurrentSession() 050 * @deprecated as of Spring 4.3, in favor of Hibernate 4.x/5.x 051 */ 052@Deprecated 053public class OpenSessionInterceptor implements MethodInterceptor, InitializingBean { 054 055 private SessionFactory sessionFactory; 056 057 058 /** 059 * Set the Hibernate SessionFactory that should be used to create Hibernate Sessions. 060 */ 061 public void setSessionFactory(SessionFactory sessionFactory) { 062 this.sessionFactory = sessionFactory; 063 } 064 065 /** 066 * Return the Hibernate SessionFactory that should be used to create Hibernate Sessions. 067 */ 068 public SessionFactory getSessionFactory() { 069 return this.sessionFactory; 070 } 071 072 @Override 073 public void afterPropertiesSet() { 074 if (getSessionFactory() == null) { 075 throw new IllegalArgumentException("Property 'sessionFactory' is required"); 076 } 077 } 078 079 080 @Override 081 public Object invoke(MethodInvocation invocation) throws Throwable { 082 SessionFactory sf = getSessionFactory(); 083 if (!TransactionSynchronizationManager.hasResource(sf)) { 084 // New Session to be bound for the current method's scope... 085 Session session = openSession(); 086 try { 087 TransactionSynchronizationManager.bindResource(sf, new org.springframework.orm.hibernate3.SessionHolder(session)); 088 return invocation.proceed(); 089 } 090 finally { 091 org.springframework.orm.hibernate3.SessionFactoryUtils.closeSession(session); 092 TransactionSynchronizationManager.unbindResource(sf); 093 } 094 } 095 else { 096 // Pre-bound Session found -> simply proceed. 097 return invocation.proceed(); 098 } 099 } 100 101 /** 102 * Open a Session for the SessionFactory that this interceptor uses. 103 * <p>The default implementation delegates to the {@link SessionFactory#openSession} 104 * method and sets the {@link Session}'s flush mode to "MANUAL". 105 * @return the Session to use 106 * @throws DataAccessResourceFailureException if the Session could not be created 107 * @see org.hibernate.FlushMode#MANUAL 108 */ 109 protected Session openSession() throws DataAccessResourceFailureException { 110 try { 111 Session session = getSessionFactory().openSession(); 112 session.setFlushMode(FlushMode.MANUAL); 113 return session; 114 } 115 catch (HibernateException ex) { 116 throw new DataAccessResourceFailureException("Could not open Hibernate Session", ex); 117 } 118 } 119 120}