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AspectJMethodBeforeAdvice (Spring Framework API 2.1) - Spring Framework 2.1.0 API 文档英文版

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org.springframework.aop.aspectj
Class AspectJMethodBeforeAdvice

java.lang.Object
  org.springframework.aop.aspectj.AbstractAspectJAdvice
      org.springframework.aop.aspectj.AspectJMethodBeforeAdvice

All Implemented Interfaces:

Advice, AspectJPrecedenceInformation, BeforeAdvice, MethodBeforeAdvice, Ordered

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public class AspectJMethodBeforeAdvice
extends AbstractAspectJAdvice
implements MethodBeforeAdvice

Spring AOP advice that wraps an AspectJ before method.

Since:

2.0

Author:

Rod Johnson, Adrian Colyer

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Field Summary

 

Fields inherited from class org.springframework.aop.aspectj.AbstractAspectJAdvice
aspectJAdviceMethod, JOIN_POINT_KEY

 

Fields inherited from interface org.springframework.core.Ordered
HIGHEST_PRECEDENCE, LOWEST_PRECEDENCE

 

Constructor Summary
AspectJMethodBeforeAdvice(Method aspectJBeforeAdviceMethod, AspectJExpressionPointcut pointcut, AspectInstanceFactory aif)

 

Method Summary
void	before(Method method, Object[] args, Object target)           Callback before a given method is invoked.
boolean	isAfterAdvice()           Return whether this is an after advice.
boolean	isBeforeAdvice()           Return whether this is a before advice.

 

Methods inherited from class org.springframework.aop.aspectj.AbstractAspectJAdvice

argBinding, buildSafePointcut, calculateArgumentBindings, createParameterNameDiscoverer, currentJoinPoint, getAspectInstanceFactory, getAspectJAdviceMethod, getAspectName, getDeclarationOrder, getDiscoveredReturningType, getDiscoveredThrowingType, getJoinPoint, getJoinPointMatch, getJoinPointMatch, getOrder, getPointcut, invokeAdviceMethod, invokeAdviceMethod, invokeAdviceMethodWithGivenArgs, setArgumentNames, setArgumentNamesFromStringArray, setAspectName, setDeclarationOrder, setReturningName, setReturningNameNoCheck, setThrowingName, setThrowingNameNoCheck, toString

 

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

 

Constructor Detail

AspectJMethodBeforeAdvice

public AspectJMethodBeforeAdvice(Method aspectJBeforeAdviceMethod,
                                 AspectJExpressionPointcut pointcut,
                                 AspectInstanceFactory aif)

Method Detail

before

public void before(Method method,
                   Object[] args,
                   Object target)
            throws Throwable

Description copied from interface: MethodBeforeAdvice

Callback before a given method is invoked.

Specified by:

before in interface MethodBeforeAdvice

Parameters:

method - method being invoked

args - arguments to the method

target - target of the method invocation. May be null.

Throws:

Throwable - if this object wishes to abort the call. Any exception thrown will be returned to the caller if it's allowed by the method signature. Otherwise the exception will be wrapped as a runtime exception.

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isBeforeAdvice

public boolean isBeforeAdvice()

Description copied from interface: AspectJPrecedenceInformation

Return whether this is a before advice.

Specified by:

isBeforeAdvice in interface AspectJPrecedenceInformation

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isAfterAdvice

public boolean isAfterAdvice()

Description copied from interface: AspectJPrecedenceInformation

Return whether this is an after advice.

Specified by:

isAfterAdvice in interface AspectJPrecedenceInformation

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