spring AbstractPointcutAdvisor 源码
spring AbstractPointcutAdvisor 代码
文件路径：/spring-aop/src/main/java/org/springframework/aop/support/AbstractPointcutAdvisor.java
/*
* Copyright 2002-2022 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.aop.support;
import java.io.Serializable;
import org.aopalliance.aop.Advice;
import org.springframework.aop.PointcutAdvisor;
import org.springframework.core.Ordered;
import org.springframework.lang.Nullable;
import org.springframework.util.ObjectUtils;
/**
* Abstract base class for {@link org.springframework.aop.PointcutAdvisor}
* implementations. Can be subclassed for returning a specific pointcut/advice
* or a freely configurable pointcut/advice.
*
* @author Rod Johnson
* @author Juergen Hoeller
* @since 1.1.2
* @see AbstractGenericPointcutAdvisor
*/
@SuppressWarnings("serial")
public abstract class AbstractPointcutAdvisor implements PointcutAdvisor, Ordered, Serializable {
@Nullable
private Integer order;
public void setOrder(int order) {
this.order = order;
}
@Override
public int getOrder() {
if (this.order != null) {
return this.order;
}
Advice advice = getAdvice();
if (advice instanceof Ordered ordered) {
return ordered.getOrder();
}
return Ordered.LOWEST_PRECEDENCE;
}
@Override
public boolean isPerInstance() {
return true;
}
@Override
public boolean equals(@Nullable Object other) {
if (this == other) {
return true;
}
if (!(other instanceof PointcutAdvisor otherAdvisor)) {
return false;
}
return (ObjectUtils.nullSafeEquals(getAdvice(), otherAdvisor.getAdvice()) &&
ObjectUtils.nullSafeEquals(getPointcut(), otherAdvisor.getPointcut()));
}
@Override
public int hashCode() {
return PointcutAdvisor.class.hashCode();
}
}
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