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TransactionAttributeSourcePointcut.java
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TransactionAttributeSourcePointcut.java
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/*
* Copyright 2002-2021 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 java.io.Serializable;
import java.lang.reflect.Method;
import org.springframework.aop.ClassFilter;
import org.springframework.aop.support.StaticMethodMatcherPointcut;
import org.springframework.dao.support.PersistenceExceptionTranslator;
import org.springframework.lang.Nullable;
import org.springframework.transaction.TransactionManager;
import org.springframework.util.ObjectUtils;
/**
* Abstract class that implements a Pointcut that matches if the underlying
* {@link TransactionAttributeSource} has an attribute for a given method.
*
* @author Juergen Hoeller
* @since 2.5.5
*/
@SuppressWarnings("serial")
abstract class TransactionAttributeSourcePointcut extends StaticMethodMatcherPointcut implements Serializable {
protected TransactionAttributeSourcePointcut() {
setClassFilter(new TransactionAttributeSourceClassFilter());
}
@Override
public boolean matches(Method method, Class<?> targetClass) {
TransactionAttributeSource tas = getTransactionAttributeSource();
return (tas == null || tas.getTransactionAttribute(method, targetClass) != null);
}
@Override
public boolean equals(@Nullable Object other) {
if (this == other) {
return true;
}
if (!(other instanceof TransactionAttributeSourcePointcut otherPc)) {
return false;
}
return ObjectUtils.nullSafeEquals(getTransactionAttributeSource(), otherPc.getTransactionAttributeSource());
}
@Override
public int hashCode() {
return TransactionAttributeSourcePointcut.class.hashCode();
}
@Override
public String toString() {
return getClass().getName() + ": " + getTransactionAttributeSource();
}
/**
* Obtain the underlying TransactionAttributeSource (may be {@code null}).
* To be implemented by subclasses.
*/
@Nullable
protected abstract TransactionAttributeSource getTransactionAttributeSource();
/**
* {@link ClassFilter} that delegates to {@link TransactionAttributeSource#isCandidateClass}
* for filtering classes whose methods are not worth searching to begin with.
*/
private class TransactionAttributeSourceClassFilter implements ClassFilter {
@Override
public boolean matches(Class<?> clazz) {
if (TransactionalProxy.class.isAssignableFrom(clazz) ||
TransactionManager.class.isAssignableFrom(clazz) ||
PersistenceExceptionTranslator.class.isAssignableFrom(clazz)) {
return false;
}
TransactionAttributeSource tas = getTransactionAttributeSource();
return (tas == null || tas.isCandidateClass(clazz));
}
}
}