net.grinder.util.weave.j2se6
Class ASMTransformerFactory

java.lang.Object
  net.grinder.util.weave.j2se6.ASMTransformerFactory

All Implemented Interfaces:

DCRWeaver.ClassFileTransformerFactory

public final class ASMTransformerFactory
extends Object
implements DCRWeaver.ClassFileTransformerFactory

DCRWeaver.ClassFileTransformerFactory implementation that uses ASM to advise methods.

Author:

Philip Aston

Constructor Summary

ASMTransformerFactory(Class<?> adviceClass)
Constructor.

Method Summary

ClassFileTransformer

create(net.grinder.util.weave.j2se6.PointCutRegistry pointCutRegistry) Factory method.

Methods inherited from class java.lang.Object

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

Constructor Detail

ASMTransformerFactory

public ASMTransformerFactory(Class<?> adviceClass)
                      throws WeavingException

Constructor.

We can't add fields to the class due to DCR limitations, so we have to wire in the advice class using static methods.adviceClass should implement two methods with the following names and signatures.

 public static void enter(Object reference,
                          String location);

 public static void exit(Object reference,
                         String location,
                         boolean success);
 

Parameters:

adviceClass - Class that provides the advice.

Throws:

WeavingException - If adviceClass does not implement enter and exit static methods.

Method Detail

create

public ClassFileTransformer create(net.grinder.util.weave.j2se6.PointCutRegistry pointCutRegistry)

Factory method.

Specified by:

create in interface DCRWeaver.ClassFileTransformerFactory

Parameters:

pointCutRegistry - The point cut registry.

Returns:

The transformer.