net.groboclown.util.classes.v1.jdk2
Class UrlClassLoader

java.lang.Object
  |
  +--net.groboclown.util.classes.v1.jdk2.UrlClassLoader

All Implemented Interfaces:

IUrlClassLoader

public class UrlClassLoader

extends Object

implements IUrlClassLoader

A JDK 1.2+ URL Class Loader implementation.

Version:

Alpha 0.9.0

Author:

Matt Albrecht

Field Summary

private Hashtable

m_urlLoaders

Constructor Summary

UrlClassLoader()
Default constructor

Method Summary

protected URL	convertUrl(String url) Converts the given string to a fully qualified URL.
void	flush() Call to flush any cache stored in the interface.
protected URLClassLoader	getClassLoader(URL url)
Class	loadClass(String className, String url) Load the given class from the given URL.

Methods inherited from class java.lang.Object

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

Field Detail

m_urlLoaders

private Hashtable m_urlLoaders

Constructor Detail

UrlClassLoader

public UrlClassLoader()

Default constructor

Method Detail

loadClass

public Class loadClass(String className,
                       String url)

Load the given class from the given URL. If the URL is null, then it is up to the classloader to figure out where to load it from. This should, in general, load the class from the default class loader.

Specified by:

loadClass in interface IUrlClassLoader

Parameters:

className - the exact class name to load.

url - the URL from which the class is loaded. If this is null, then the returned class is implementation specific.

Returns:

the loaded Class instance, or null if the class could not be found or if the given URL is not valid.

flush

public void flush()

Call to flush any cache stored in the interface. This allows for a class loader to cache results, and free up memory when it is not needed.

Specified by:

flush in interface IUrlClassLoader

convertUrl

protected URL convertUrl(String url)

Converts the given string to a fully qualified URL. If no scheme is given, then it is converted to a File scheme.

getClassLoader

protected URLClassLoader getClassLoader(URL url)