spring Ejb3TransactionAnnotationParser 源码
spring Ejb3TransactionAnnotationParser 代码
文件路径：/spring-tx/src/main/java/org/springframework/transaction/annotation/Ejb3TransactionAnnotationParser.java
/*
* Copyright 2002-2019 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* https://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.springframework.transaction.annotation;
import java.io.Serializable;
import java.lang.reflect.AnnotatedElement;
import jakarta.ejb.ApplicationException;
import jakarta.ejb.TransactionAttributeType;
import org.springframework.core.annotation.AnnotationUtils;
import org.springframework.lang.Nullable;
import org.springframework.transaction.interceptor.DefaultTransactionAttribute;
import org.springframework.transaction.interceptor.TransactionAttribute;
/**
* Strategy implementation for parsing EJB3's {@link jakarta.ejb.TransactionAttribute}
* annotation.
*
* @author Juergen Hoeller
* @since 2.5
*/
@SuppressWarnings("serial")
public class Ejb3TransactionAnnotationParser implements TransactionAnnotationParser, Serializable {
@Override
public boolean isCandidateClass(Class<?> targetClass) {
return AnnotationUtils.isCandidateClass(targetClass, jakarta.ejb.TransactionAttribute.class);
}
@Override
@Nullable
public TransactionAttribute parseTransactionAnnotation(AnnotatedElement element) {
jakarta.ejb.TransactionAttribute ann = element.getAnnotation(jakarta.ejb.TransactionAttribute.class);
if (ann != null) {
return parseTransactionAnnotation(ann);
}
else {
return null;
}
}
public TransactionAttribute parseTransactionAnnotation(jakarta.ejb.TransactionAttribute ann) {
return new Ejb3TransactionAttribute(ann.value());
}
@Override
public boolean equals(@Nullable Object other) {
return (other instanceof Ejb3TransactionAnnotationParser);
}
@Override
public int hashCode() {
return Ejb3TransactionAnnotationParser.class.hashCode();
}
/**
* EJB3-specific TransactionAttribute, implementing EJB3's rollback rules
* which are based on annotated exceptions.
*/
private static class Ejb3TransactionAttribute extends DefaultTransactionAttribute {
public Ejb3TransactionAttribute(TransactionAttributeType type) {
setPropagationBehaviorName(PREFIX_PROPAGATION + type.name());
}
@Override
public boolean rollbackOn(Throwable ex) {
ApplicationException ann = ex.getClass().getAnnotation(ApplicationException.class);
return (ann != null ? ann.rollback() : super.rollbackOn(ex));
}
}
}
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