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 java.io.Serializable; 020 021import org.springframework.lang.Nullable; 022import org.springframework.transaction.support.DelegatingTransactionDefinition; 023 024/** 025 * {@link TransactionAttribute} implementation that delegates all calls to a given target 026 * {@link TransactionAttribute} instance. Abstract because it is meant to be subclassed, 027 * with subclasses overriding specific methods that are not supposed to simply delegate 028 * to the target instance. 029 * 030 * @author Juergen Hoeller 031 * @since 1.2 032 */ 033@SuppressWarnings("serial") 034public abstract class DelegatingTransactionAttribute extends DelegatingTransactionDefinition 035 implements TransactionAttribute, Serializable { 036 037 private final TransactionAttribute targetAttribute; 038 039 040 /** 041 * Create a DelegatingTransactionAttribute for the given target attribute. 042 * @param targetAttribute the target TransactionAttribute to delegate to 043 */ 044 public DelegatingTransactionAttribute(TransactionAttribute targetAttribute) { 045 super(targetAttribute); 046 this.targetAttribute = targetAttribute; 047 } 048 049 050 @Override 051 @Nullable 052 public String getQualifier() { 053 return this.targetAttribute.getQualifier(); 054 } 055 056 @Override 057 public boolean rollbackOn(Throwable ex) { 058 return this.targetAttribute.rollbackOn(ex); 059 } 060 061}