001/* 002 * Copyright 2002-2012 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.transaction.interceptor; 018 019import org.aopalliance.aop.Advice; 020 021import org.springframework.aop.ClassFilter; 022import org.springframework.aop.Pointcut; 023import org.springframework.aop.support.AbstractPointcutAdvisor; 024 025/** 026 * Advisor driven by a {@link TransactionAttributeSource}, used to include 027 * a {@link TransactionInterceptor} only for methods that are transactional. 028 * 029 * <p>Because the AOP framework caches advice calculations, this is normally 030 * faster than just letting the TransactionInterceptor run and find out 031 * itself that it has no work to do. 032 * 033 * @author Rod Johnson 034 * @author Juergen Hoeller 035 * @see #setTransactionInterceptor 036 * @see TransactionProxyFactoryBean 037 */ 038@SuppressWarnings("serial") 039public class TransactionAttributeSourceAdvisor extends AbstractPointcutAdvisor { 040 041 private TransactionInterceptor transactionInterceptor; 042 043 private final TransactionAttributeSourcePointcut pointcut = new TransactionAttributeSourcePointcut() { 044 @Override 045 protected TransactionAttributeSource getTransactionAttributeSource() { 046 return (transactionInterceptor != null ? transactionInterceptor.getTransactionAttributeSource() : null); 047 } 048 }; 049 050 051 /** 052 * Create a new TransactionAttributeSourceAdvisor. 053 */ 054 public TransactionAttributeSourceAdvisor() { 055 } 056 057 /** 058 * Create a new TransactionAttributeSourceAdvisor. 059 * @param interceptor the transaction interceptor to use for this advisor 060 */ 061 public TransactionAttributeSourceAdvisor(TransactionInterceptor interceptor) { 062 setTransactionInterceptor(interceptor); 063 } 064 065 066 /** 067 * Set the transaction interceptor to use for this advisor. 068 */ 069 public void setTransactionInterceptor(TransactionInterceptor interceptor) { 070 this.transactionInterceptor = interceptor; 071 } 072 073 /** 074 * Set the {@link ClassFilter} to use for this pointcut. 075 * Default is {@link ClassFilter#TRUE}. 076 */ 077 public void setClassFilter(ClassFilter classFilter) { 078 this.pointcut.setClassFilter(classFilter); 079 } 080 081 082 @Override 083 public Advice getAdvice() { 084 return this.transactionInterceptor; 085 } 086 087 @Override 088 public Pointcut getPointcut() { 089 return this.pointcut; 090 } 091 092}