net.sf.jmp3renamer
Class JarClassLoader

java.lang.Object
  java.lang.ClassLoader
      net.sf.jmp3renamer.JarClassLoader

public class JarClassLoader
extends ClassLoader

This ClassLoader is designed for plugin-based applications. The main design goal is the possibility to close the jarfile, so that it can be deleted or replaced by newer ones.

Field Summary

private Hashtable	cache
private JarFile	jar

Constructor Summary

JarClassLoader(File jar)

JarClassLoader(String jar)

Method Summary

private String	classToFile(String name)
void	closeJarFile()
protected Class	findClass(String clazz)
InputStream	getResourceAsStream(String resource)
private Class	loadClassFromJar(String clazz)

Methods inherited from class java.lang.ClassLoader

clearAssertionStatus, defineClass, defineClass, defineClass, defineClass, definePackage, findLibrary, findLoadedClass, findResource, findResources, findSystemClass, getPackage, getPackages, getParent, getResource, getResources, getSystemClassLoader, getSystemResource, getSystemResourceAsStream, getSystemResources, loadClass, loadClass, resolveClass, setClassAssertionStatus, setDefaultAssertionStatus, setPackageAssertionStatus, setSigners

Methods inherited from class java.lang.Object

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

Field Detail

jar

private JarFile jar

cache

private Hashtable cache

Constructor Detail

JarClassLoader

public JarClassLoader(String jar)
               throws IOException

Throws:

IOException

JarClassLoader

public JarClassLoader(File jar)
               throws IOException

Throws:

IOException

Method Detail

closeJarFile

public void closeJarFile()
                  throws IOException

Throws:

IOException

findClass

protected Class findClass(String clazz)
                   throws ClassNotFoundException

Overrides:

findClass in class ClassLoader

Throws:

ClassNotFoundException

loadClassFromJar

private Class loadClassFromJar(String clazz)

getResourceAsStream

public InputStream getResourceAsStream(String resource)

Overrides:

getResourceAsStream in class ClassLoader

classToFile

private String classToFile(String name)