org.springframework.instrument.classloading.glassfish

Class GlassFishLoadTimeWeaver

java.lang.Object

org.springframework.instrument.classloading.glassfish.GlassFishLoadTimeWeaver

All Implemented Interfaces:

LoadTimeWeaver

public class GlassFishLoadTimeWeaver
extends java.lang.Object
implements LoadTimeWeaver

LoadTimeWeaver implementation for GlassFish's InstrumentableClassLoader.

As of Spring 3.0, GlassFish V3 is supported as well.

Since:

2.0.1

Author:

Costin Leau, Juergen Hoeller

Field Summary

Fields

Modifier and Type	Field and Description
private GlassFishClassLoaderAdapter	classLoader

Constructor Summary

Constructors

Constructor and Description
GlassFishLoadTimeWeaver() Creates a new instance of the GlassFishLoadTimeWeaver class using the default ClassLoader.
GlassFishLoadTimeWeaver(java.lang.ClassLoader classLoader) Creates a new instance of the GlassFishLoadTimeWeaver class.

Method Summary

Methods

Modifier and Type	Method and Description
void	addTransformer(java.lang.instrument.ClassFileTransformer transformer) Add a ClassFileTransformer to be applied by this LoadTimeWeaver.
java.lang.ClassLoader	getInstrumentableClassLoader() Return a ClassLoader that supports instrumentation through AspectJ-style load-time weaving based on user-defined ClassFileTransformers.
java.lang.ClassLoader	getThrowawayClassLoader() Return a throwaway ClassLoader, enabling classes to be loaded and inspected without affecting the parent ClassLoader.

Methods inherited from class java.lang.Object

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

Field Detail

classLoader

private final GlassFishClassLoaderAdapter classLoader

Constructor Detail

GlassFishLoadTimeWeaver

public GlassFishLoadTimeWeaver()

Creates a new instance of the GlassFishLoadTimeWeaver class using the default ClassLoader.

See Also:

GlassFishLoadTimeWeaver(ClassLoader)

GlassFishLoadTimeWeaver

public GlassFishLoadTimeWeaver(java.lang.ClassLoader classLoader)

Creates a new instance of the GlassFishLoadTimeWeaver class.

Parameters:

classLoader - the specific ClassLoader to use; must not be null

Throws:

java.lang.IllegalArgumentException - if the supplied classLoader is null; or if the supplied classLoader is not an InstrumentableClassLoader

Method Detail

addTransformer

public void addTransformer(java.lang.instrument.ClassFileTransformer transformer)

Description copied from interface: LoadTimeWeaver

Add a ClassFileTransformer to be applied by this LoadTimeWeaver.

Specified by:

addTransformer in interface LoadTimeWeaver

Parameters:

transformer - the ClassFileTransformer to add

getInstrumentableClassLoader

public java.lang.ClassLoader getInstrumentableClassLoader()

Description copied from interface: LoadTimeWeaver

Return a ClassLoader that supports instrumentation through AspectJ-style load-time weaving based on user-defined ClassFileTransformers.

May be the current ClassLoader, or a ClassLoader created by this LoadTimeWeaver instance.

Specified by:

getInstrumentableClassLoader in interface LoadTimeWeaver

Returns:

the ClassLoader which will expose instrumented classes according to the registered transformers

getThrowawayClassLoader

public java.lang.ClassLoader getThrowawayClassLoader()

Description copied from interface: LoadTimeWeaver

Return a throwaway ClassLoader, enabling classes to be loaded and inspected without affecting the parent ClassLoader.

Should not return the same instance of the ClassLoader returned from an invocation of LoadTimeWeaver.getInstrumentableClassLoader().

Specified by:

getThrowawayClassLoader in interface LoadTimeWeaver

Returns:

a temporary throwaway ClassLoader; should return a new instance for each call, with no existing state