org.codehaus.aspectwerkz.attribdef.aspect
Class DefaultIntroductionContainerStrategy

java.lang.Object
  org.codehaus.aspectwerkz.attribdef.aspect.DefaultIntroductionContainerStrategy

All Implemented Interfaces:

IntroductionContainer

public class DefaultIntroductionContainerStrategy

extends java.lang.Object

implements IntroductionContainer

Container for Introductions.

Author:

Alexandre Vasseur

Constructor Summary

DefaultIntroductionContainerStrategy(Introduction prototype, AspectContainer definingAspectContainer)
Creates a new container strategy.

Method Summary

java.lang.Class	getTargetClass(java.lang.Object mixinImpl) Returns the target class from an introduction
java.lang.Object	getTargetInstance(java.lang.Object mixinImpl) Returns the target instance from an introduction
java.lang.Object	invokeIntroductionPerClass(java.lang.Object targetInstance, int methodIndex, java.lang.Object[] parameters) Invokes the method on a per class basis.
java.lang.Object	invokeIntroductionPerInstance(java.lang.Object targetInstance, int methodIndex, java.lang.Object[] parameters) Invokes the method on a per instance basis.
java.lang.Object	invokeIntroductionPerJvm(int methodIndex, java.lang.Object[] parameters) Invokes the method on a per JVM basis.
java.lang.Object	invokeIntroductionPerThread(int methodIndex, java.lang.Object[] parameters) Invokes the method on a per thread basis.
void	swapImplementation(java.lang.Class newImplementationClass) Swaps the current mixin implementation.

Methods inherited from class java.lang.Object

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

Constructor Detail

DefaultIntroductionContainerStrategy

public DefaultIntroductionContainerStrategy(Introduction prototype,
                                            AspectContainer definingAspectContainer)

Creates a new container strategy.

Parameters:

prototype - the advice prototype

Method Detail

invokeIntroductionPerJvm

public java.lang.Object invokeIntroductionPerJvm(int methodIndex,
                                                 java.lang.Object[] parameters)

Invokes the method on a per JVM basis.

Specified by:

invokeIntroductionPerJvm in interface IntroductionContainer

Parameters:

methodIndex - the method index

parameters - the parameters for the invocation

Returns:

the result from the method invocation

invokeIntroductionPerClass

public java.lang.Object invokeIntroductionPerClass(java.lang.Object targetInstance,
                                                   int methodIndex,
                                                   java.lang.Object[] parameters)

Invokes the method on a per class basis.

Specified by:

invokeIntroductionPerClass in interface IntroductionContainer

Parameters:

targetInstance - a reference to the calling object

methodIndex - the method index

parameters - the parameters for the invocation

Returns:

the result from the method invocation

invokeIntroductionPerInstance

public java.lang.Object invokeIntroductionPerInstance(java.lang.Object targetInstance,
                                                      int methodIndex,
                                                      java.lang.Object[] parameters)

Invokes the method on a per instance basis.

Specified by:

invokeIntroductionPerInstance in interface IntroductionContainer

Parameters:

targetInstance - a reference to the target instance

methodIndex - the method index

parameters - the parameters for the invocation

Returns:

the result from the method invocation

invokeIntroductionPerThread

public java.lang.Object invokeIntroductionPerThread(int methodIndex,
                                                    java.lang.Object[] parameters)

Invokes the method on a per thread basis.

Specified by:

invokeIntroductionPerThread in interface IntroductionContainer

Parameters:

methodIndex - the method index

parameters - the parameters for the invocation

Returns:

the result from the method invocation

swapImplementation

public void swapImplementation(java.lang.Class newImplementationClass)

Swaps the current mixin implementation.

Specified by:

swapImplementation in interface IntroductionContainer

Parameters:

newImplementationClass - the class of the new implementation to use

getTargetInstance

public java.lang.Object getTargetInstance(java.lang.Object mixinImpl)

Returns the target instance from an introduction

Specified by:

getTargetInstance in interface IntroductionContainer

Parameters:

mixinImpl - aka "this" from the mixin impl

Returns:

the target instance or null (if not perInstance deployed mixin)

getTargetClass

public java.lang.Class getTargetClass(java.lang.Object mixinImpl)

Returns the target class from an introduction

Specified by:

getTargetClass in interface IntroductionContainer

Parameters:

mixinImpl - aka "this" from the mixin impl

Returns:

the target instance or null (if not perInstance or perClas deployed mixin)