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.annotation;
018
019import java.io.Serializable;
020import java.lang.reflect.AnnotatedElement;
021import javax.ejb.ApplicationException;
022import javax.ejb.TransactionAttributeType;
023
024import org.springframework.transaction.interceptor.DefaultTransactionAttribute;
025import org.springframework.transaction.interceptor.TransactionAttribute;
026
027/**
028 * Strategy implementation for parsing EJB3's {@link javax.ejb.TransactionAttribute}
029 * annotation.
030 *
031 * @author Juergen Hoeller
032 * @since 2.5
033 */
034@SuppressWarnings("serial")
035public class Ejb3TransactionAnnotationParser implements TransactionAnnotationParser, Serializable {
036
037        @Override
038        public TransactionAttribute parseTransactionAnnotation(AnnotatedElement element) {
039                javax.ejb.TransactionAttribute ann = element.getAnnotation(javax.ejb.TransactionAttribute.class);
040                if (ann != null) {
041                        return parseTransactionAnnotation(ann);
042                }
043                else {
044                        return null;
045                }
046        }
047
048        public TransactionAttribute parseTransactionAnnotation(javax.ejb.TransactionAttribute ann) {
049                return new Ejb3TransactionAttribute(ann.value());
050        }
051
052
053        @Override
054        public boolean equals(Object other) {
055                return (this == other || other instanceof Ejb3TransactionAnnotationParser);
056        }
057
058        @Override
059        public int hashCode() {
060                return Ejb3TransactionAnnotationParser.class.hashCode();
061        }
062
063
064        /**
065         * EJB3-specific TransactionAttribute, implementing EJB3's rollback rules
066         * which are based on annotated exceptions.
067         */
068        private static class Ejb3TransactionAttribute extends DefaultTransactionAttribute {
069
070                public Ejb3TransactionAttribute(TransactionAttributeType type) {
071                        setPropagationBehaviorName(PREFIX_PROPAGATION + type.name());
072                }
073
074                @Override
075                public boolean rollbackOn(Throwable ex) {
076                        ApplicationException ann = ex.getClass().getAnnotation(ApplicationException.class);
077                        return (ann != null ? ann.rollback() : super.rollbackOn(ex));
078                }
079        }
080
081}