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}