001/* 002 * Copyright 2002-2012 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.aop.support; 018 019import java.io.Serializable; 020 021import org.aopalliance.aop.Advice; 022 023import org.springframework.aop.PointcutAdvisor; 024import org.springframework.core.Ordered; 025import org.springframework.util.ObjectUtils; 026 027/** 028 * Abstract base class for {@link org.springframework.aop.PointcutAdvisor} 029 * implementations. Can be subclassed for returning a specific pointcut/advice 030 * or a freely configurable pointcut/advice. 031 * 032 * @author Rod Johnson 033 * @author Juergen Hoeller 034 * @since 1.1.2 035 * @see AbstractGenericPointcutAdvisor 036 */ 037@SuppressWarnings("serial") 038public abstract class AbstractPointcutAdvisor implements PointcutAdvisor, Ordered, Serializable { 039 040 private Integer order; 041 042 043 public void setOrder(int order) { 044 this.order = order; 045 } 046 047 @Override 048 public int getOrder() { 049 if (this.order != null) { 050 return this.order; 051 } 052 Advice advice = getAdvice(); 053 if (advice instanceof Ordered) { 054 return ((Ordered) advice).getOrder(); 055 } 056 return Ordered.LOWEST_PRECEDENCE; 057 } 058 059 @Override 060 public boolean isPerInstance() { 061 return true; 062 } 063 064 065 @Override 066 public boolean equals(Object other) { 067 if (this == other) { 068 return true; 069 } 070 if (!(other instanceof PointcutAdvisor)) { 071 return false; 072 } 073 PointcutAdvisor otherAdvisor = (PointcutAdvisor) other; 074 return (ObjectUtils.nullSafeEquals(getAdvice(), otherAdvisor.getAdvice()) && 075 ObjectUtils.nullSafeEquals(getPointcut(), otherAdvisor.getPointcut())); 076 } 077 078 @Override 079 public int hashCode() { 080 return PointcutAdvisor.class.hashCode(); 081 } 082 083}