org.springframework.instrument.classloading.weblogic

Class WebLogicLoadTimeWeaver

java.lang.Object

org.springframework.instrument.classloading.weblogic.WebLogicLoadTimeWeaver

All Implemented Interfaces:

LoadTimeWeaver

public class WebLogicLoadTimeWeaver
extends java.lang.Object
implements LoadTimeWeaver

LoadTimeWeaver implementation for WebLogic's instrumentable ClassLoader.

NOTE: Requires BEA WebLogic version 10 or higher.

Since:

2.5

Author:

Costin Leau, Juergen Hoeller

Field Summary

Fields

Modifier and Type	Field and Description
private WebLogicClassLoaderAdapter	classLoader

Constructor Summary

Constructors

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

Method Summary

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 WebLogicClassLoaderAdapter classLoader

Constructor Detail

WebLogicLoadTimeWeaver

public WebLogicLoadTimeWeaver()

Creates a new instance of the WebLogicLoadTimeWeaver class using the default class loader.

See Also:

ClassUtils.getDefaultClassLoader()

WebLogicLoadTimeWeaver

public WebLogicLoadTimeWeaver(java.lang.ClassLoader classLoader)

Creates a new instance of the WebLogicLoadTimeWeaver class using the supplied ClassLoader.

Parameters:

classLoader - the ClassLoader to delegate to for weaving (must not be null)

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