chord.instr
Class OnlineTransformer

java.lang.Object
  chord.instr.OnlineTransformer

All Implemented Interfaces:

java.lang.instrument.ClassFileTransformer

public final class OnlineTransformer
extends java.lang.Object
implements java.lang.instrument.ClassFileTransformer

Online (load-time) class-file transformer.

Author:

Mayur Naik (mhn@cs.stanford.edu)

Constructor Summary

OnlineTransformer(BasicInstrumentor instr)

Method Summary

static void	premain(java.lang.String agentArgs, java.lang.instrument.Instrumentation instrumentation)
byte[]	transform(java.lang.ClassLoader loader, java.lang.String className, java.lang.Class<?> classBeingRedefined, java.security.ProtectionDomain protectionDomain, byte[] classfileBuffer)

Methods inherited from class java.lang.Object

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

Constructor Detail

OnlineTransformer

public OnlineTransformer(BasicInstrumentor instr)

Method Detail

premain

public static void premain(java.lang.String agentArgs,
                           java.lang.instrument.Instrumentation instrumentation)

transform

public byte[] transform(java.lang.ClassLoader loader,
                        java.lang.String className,
                        java.lang.Class<?> classBeingRedefined,
                        java.security.ProtectionDomain protectionDomain,
                        byte[] classfileBuffer)
                 throws java.lang.instrument.IllegalClassFormatException

Specified by:

transform in interface java.lang.instrument.ClassFileTransformer

Throws:

java.lang.instrument.IllegalClassFormatException