alt.jiapi.agent

Class HotSpotTransformer

java.lang.Object

alt.jiapi.agent.Transformer

alt.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 alt.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

Methods

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

Methods inherited from class alt.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(java.util.Properties p)

Description copied from class: Transformer

Initialize Transformer with given properties.

Overrides:

init in class Transformer

transform

public boolean transform(JiapiClass clazz)

Instrument given JiapiClass.

Overrides:

transform in class Transformer

Returns:

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