org.eclipse.gemini.blueprint.context.support.internal.classloader

Class ClassLoaderFactory

java.lang.Object

org.eclipse.gemini.blueprint.context.support.internal.classloader.ClassLoaderFactory

public abstract class ClassLoaderFactory
extends java.lang.Object

Simple factory for generating Bundle/AOP-suitable class loaders used internally by Spring-DM for generating proxies. The factory acts as a generic facade for framework components hiding the implementation details (or the changes in strategy).

Internally the factory will try to use a cache to avoid creating unneeded class loader (even if lightweight) to avoid polluting the JDK/CGLIB class loader maps.

Field Summary

Fields

Modifier and Type	Field and Description
private static InternalAopClassLoaderFactory	aopClassLoaderFactory plug-able, private, class loader factory
private static BundleClassLoaderFactory	bundleClassLoaderFactory plug-able, private, bundle loader factory

Constructor Summary

Constructors

Constructor and Description
ClassLoaderFactory()

Method Summary

Modifier and Type	Method and Description
static ChainedClassLoader	getAopClassLoaderFor(java.lang.ClassLoader classLoader) Returns the standard, extended AOP class loader based on the given class loader.
static java.lang.ClassLoader	getBundleClassLoaderFor(org.osgi.framework.Bundle bundle) Returns the wrapped class loader for the given bundle.

Methods inherited from class java.lang.Object

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

Field Detail

aopClassLoaderFactory

private static InternalAopClassLoaderFactory aopClassLoaderFactory

plug-able, private, class loader factory

bundleClassLoaderFactory

private static BundleClassLoaderFactory bundleClassLoaderFactory

plug-able, private, bundle loader factory

Constructor Detail

ClassLoaderFactory

public ClassLoaderFactory()

Method Detail

getAopClassLoaderFor

public static ChainedClassLoader getAopClassLoaderFor(java.lang.ClassLoader classLoader)

Returns the standard, extended AOP class loader based on the given class loader.

Parameters:

classLoader - base class loader

Returns:

AOP class loader created using the given argument

getBundleClassLoaderFor

public static java.lang.ClassLoader getBundleClassLoaderFor(org.osgi.framework.Bundle bundle)

Returns the wrapped class loader for the given bundle.

This method is similar to getAopClassLoaderFor(ClassLoader) but considers the BundleDelegatingClassLoader associated with a bundle. Namely, the implementation will check if there is a wrapping class loader associated with the given bundle, creating one if none if found.

Useful when creating importers/exporters programmatically.

Parameters:

bundle - OSGi bundle

Returns:

associated wrapping class loader