net.sf.jiapi.agent

Class HotSpotTransformer

java.lang.Object

net.sf.jiapi.agent.Transformer

net.sf.jiapi.agent.HotSpotTransformer

public class HotSpotTransformer
extends Transformer

Transforms classes. Currently, only method invocations are subject to instrumentation. Following is a list of properties, that can be given as an argument to -javaagent command line switch

• advice=fq_name_of_advice_class: Names a class that extends net.sf.jiapi.util.HotSpotAdvice
• inclusion-rule=rule_string: A regular expression indicating which classes are to be instrumented.
• ir=rule_string: same as above
• exclusion-rule=rule_string: A regular expression indicating which classes are not to be instrumented.
• er=rule_string: same as above
• resolution=rule_string: A regular expression indicating which method invocations should be the subject of instrumentation.
• dump: If given, dumps instrumented class into working directory

See Also:

HotSpotAdvice

Constructor Summary

Constructors

Constructor and Description
HotSpotTransformer()

Method Summary

Modifier and Type	Method and Description
void	init(Properties p) Initialize Transformer with given properties.
boolean	transform(JiapiClass clazz) Instrument given JiapiClass.

Methods inherited from class net.sf.jiapi.agent.Transformer

retransform

Methods inherited from class java.lang.Object

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

Constructor Detail

HotSpotTransformer

public HotSpotTransformer()

Method Detail

init

public void init(Properties p)

Description copied from class: Transformer

Initialize Transformer with given properties.

Overrides:

init in class Transformer

Parameters:

p - Properties

transform

public boolean transform(JiapiClass clazz)

Instrument given JiapiClass.

Overrides:

transform in class Transformer

Parameters:

clazz - JiapiClass

Returns:

true, if bytecode has changed. Default is to return false.