001/* 002 * Copyright 2002-2018 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 java.io.Serializable; 020import java.lang.reflect.Method; 021 022import org.springframework.lang.Nullable; 023import org.springframework.util.ClassUtils; 024import org.springframework.util.ObjectUtils; 025 026/** 027 * Very simple implementation of TransactionAttributeSource which will always return 028 * the same TransactionAttribute for all methods fed to it. The TransactionAttribute 029 * may be specified, but will otherwise default to PROPAGATION_REQUIRED. This may be 030 * used in the cases where you want to use the same transaction attribute with all 031 * methods being handled by a transaction interceptor. 032 * 033 * @author Colin Sampaleanu 034 * @since 15.10.2003 035 * @see org.springframework.transaction.interceptor.TransactionProxyFactoryBean 036 * @see org.springframework.aop.framework.autoproxy.BeanNameAutoProxyCreator 037 */ 038@SuppressWarnings("serial") 039public class MatchAlwaysTransactionAttributeSource implements TransactionAttributeSource, Serializable { 040 041 private TransactionAttribute transactionAttribute = new DefaultTransactionAttribute(); 042 043 044 /** 045 * Allows a transaction attribute to be specified, using the String form, for 046 * example, "PROPAGATION_REQUIRED". 047 * @param transactionAttribute the String form of the transactionAttribute to use. 048 * @see org.springframework.transaction.interceptor.TransactionAttributeEditor 049 */ 050 public void setTransactionAttribute(TransactionAttribute transactionAttribute) { 051 this.transactionAttribute = transactionAttribute; 052 } 053 054 055 @Override 056 @Nullable 057 public TransactionAttribute getTransactionAttribute(Method method, @Nullable Class<?> targetClass) { 058 return (ClassUtils.isUserLevelMethod(method) ? this.transactionAttribute : null); 059 } 060 061 062 @Override 063 public boolean equals(@Nullable Object other) { 064 if (this == other) { 065 return true; 066 } 067 if (!(other instanceof MatchAlwaysTransactionAttributeSource)) { 068 return false; 069 } 070 MatchAlwaysTransactionAttributeSource otherTas = (MatchAlwaysTransactionAttributeSource) other; 071 return ObjectUtils.nullSafeEquals(this.transactionAttribute, otherTas.transactionAttribute); 072 } 073 074 @Override 075 public int hashCode() { 076 return MatchAlwaysTransactionAttributeSource.class.hashCode(); 077 } 078 079 @Override 080 public String toString() { 081 return getClass().getName() + ": " + this.transactionAttribute; 082 } 083 084}