spring TransactionAttributeSourceAdvisor 源码
spring TransactionAttributeSourceAdvisor 代码
文件路径：/spring-tx/src/main/java/org/springframework/transaction/interceptor/TransactionAttributeSourceAdvisor.java
/*
* Copyright 2002-2017 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.interceptor;
import org.aopalliance.aop.Advice;
import org.springframework.aop.ClassFilter;
import org.springframework.aop.Pointcut;
import org.springframework.aop.support.AbstractPointcutAdvisor;
import org.springframework.lang.Nullable;
import org.springframework.util.Assert;
/**
* Advisor driven by a {@link TransactionAttributeSource}, used to include
* a {@link TransactionInterceptor} only for methods that are transactional.
*
* <p>Because the AOP framework caches advice calculations, this is normally
* faster than just letting the TransactionInterceptor run and find out
* itself that it has no work to do.
*
* @author Rod Johnson
* @author Juergen Hoeller
* @see #setTransactionInterceptor
* @see TransactionProxyFactoryBean
*/
@SuppressWarnings("serial")
public class TransactionAttributeSourceAdvisor extends AbstractPointcutAdvisor {
@Nullable
private TransactionInterceptor transactionInterceptor;
private final TransactionAttributeSourcePointcut pointcut = new TransactionAttributeSourcePointcut() {
@Override
@Nullable
protected TransactionAttributeSource getTransactionAttributeSource() {
return (transactionInterceptor != null ? transactionInterceptor.getTransactionAttributeSource() : null);
}
};
/**
* Create a new TransactionAttributeSourceAdvisor.
*/
public TransactionAttributeSourceAdvisor() {
}
/**
* Create a new TransactionAttributeSourceAdvisor.
* @param interceptor the transaction interceptor to use for this advisor
*/
public TransactionAttributeSourceAdvisor(TransactionInterceptor interceptor) {
setTransactionInterceptor(interceptor);
}
/**
* Set the transaction interceptor to use for this advisor.
*/
public void setTransactionInterceptor(TransactionInterceptor interceptor) {
this.transactionInterceptor = interceptor;
}
/**
* Set the {@link ClassFilter} to use for this pointcut.
* Default is {@link ClassFilter#TRUE}.
*/
public void setClassFilter(ClassFilter classFilter) {
this.pointcut.setClassFilter(classFilter);
}
@Override
public Advice getAdvice() {
Assert.state(this.transactionInterceptor != null, "No TransactionInterceptor set");
return this.transactionInterceptor;
}
@Override
public Pointcut getPointcut() {
return this.pointcut;
}
}
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