org.apache.axis.utils
Class JWSClassLoader

java.lang.Object
  |
  +--java.lang.ClassLoader
        |
        +--org.apache.axis.utils.JWSClassLoader

public class JWSClassLoader

extends java.lang.ClassLoader

Class loader for JWS files. There is one of these per JWS class, and we keep a static Hashtable of them, indexed by class name. When we want to reload a JWS, we replace the ClassLoader for that class and let the old one get GC'ed.

Author:

Glen Daniels (gdaniels@apache.org), Doug Davis (dug@us.ibm.com)

Constructor Summary

JWSClassLoader(java.lang.String name, java.lang.ClassLoader cl, java.lang.String classFile)
Construct a JWSClassLoader with a class name, a parent ClassLoader, and a filename of a .class file containing the bytecode for the class.

Method Summary

java.io.InputStream

getResourceAsStream(java.lang.String resourceName) Overloaded getResourceAsStream() so we can be sure to return the correct class file regardless of where it might live on our hard drive.

Methods inherited from class java.lang.ClassLoader

clearAssertionStatus, defineClass, defineClass, defineClass, definePackage, findClass, 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

Constructor Detail

JWSClassLoader

public JWSClassLoader(java.lang.String name,
                      java.lang.ClassLoader cl,
                      java.lang.String classFile)
               throws java.io.FileNotFoundException,
                      java.io.IOException

Construct a JWSClassLoader with a class name, a parent ClassLoader, and a filename of a .class file containing the bytecode for the class. The constructor will load the bytecode, define the class, and register this JWSClassLoader in the static registry.

Parameters:

name - the name of the class which will be created/loaded

cl - the parent ClassLoader

classFile - filename of the .class file

Throws:

java.io.FileNotFoundException

java.io.IOException

Method Detail

getResourceAsStream

public java.io.InputStream getResourceAsStream(java.lang.String resourceName)

Overloaded getResourceAsStream() so we can be sure to return the correct class file regardless of where it might live on our hard drive.

Overrides:

getResourceAsStream in class java.lang.ClassLoader

Parameters:

resourceName - the resource to load (should be "classname.class")

Returns:

an InputStream of the class bytes, or null