com.xenonsoft.bridgetown.aop.helper
Class BeforeAdviceAdaptor

java.lang.Object
  com.xenonsoft.bridgetown.aop.helper.BeforeAdviceAdaptor

All Implemented Interfaces:

IMethodInterceptor, java.io.Serializable

public abstract class BeforeAdviceAdaptor

extends java.lang.Object

implements IMethodInterceptor, java.io.Serializable

An adaptor class that makes it easier to write a convenient "Before" advice on the method interceptor.

Version:

$Id: BeforeAdviceAdaptor.java,v 1.4 2005/03/17 02:24:50 peter_pilgrim Exp $

Author:

peterp, 02-Oct-2004

See Also:

Serialized Form

Constructor Summary

BeforeAdviceAdaptor()
Default constructor

Method Summary

abstract java.lang.Object	before(java.lang.reflect.Method method, java.lang.Object[] args, java.lang.Object target) The before advice that the subclasser must implement.
java.lang.Object	invocation(IInterceptionContext context) The method interceptor

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

BeforeAdviceAdaptor

public BeforeAdviceAdaptor()

Default constructor

Method Detail

invocation

public final java.lang.Object invocation(IInterceptionContext context)
                                  throws java.lang.Throwable

The method interceptor

Specified by:

invocation in interface IMethodInterceptor

Parameters:

context - the interception context

Returns:

the return value from the method join point that has been invoked

Throws:

java.lang.Throwable

See Also:

IMethodInterceptor.invocation(com.xenonsoft.bridgetown.aop.IInterceptionContext)

before

public abstract java.lang.Object before(java.lang.reflect.Method method,
                                        java.lang.Object[] args,
                                        java.lang.Object target)
                                 throws java.lang.Throwable

The before advice that the subclasser must implement. This is method is called before invocation of the joinpoint.

Parameters:

method - the method join point

args - the arguments that where were supplied

target - the target object

Returns:

the return value

Throws:

java.lang.Throwable