com.objectwave.customClassLoader
Class FileClassLoader

java.lang.Object
  |
  +--java.lang.ClassLoader
        |
        +--com.objectwave.customClassLoader.MultiClassLoader
              |
              +--com.objectwave.customClassLoader.FileClassLoader

public class FileClassLoader

extends MultiClassLoader

Loads class bytes from a file.

Version:

$Id: FileClassLoader.java,v 2.0 2001/06/11 15:54:25 dave_hoag Exp $

Author:

Jack Harich - 8/30/97

Field Summary

Fields inherited from class com.objectwave.customClassLoader.MultiClassLoader

loadLocalClasses, monitorOn, sourceMonitorOn

Constructor Summary

FileClassLoader(java.lang.String filePrefix)
Attempts to load from a local file using the relative "filePrefix", ie starting at the current directory.

Method Summary

void	addClassToSkip(java.lang.String className) Add the name of a class that should not be loaded by this class loader.
java.lang.Class	forceLoadClass(java.lang.String className)
protected java.net.URL	formatURL(java.net.URL url)
java.lang.Object	getContent(java.net.URL url) Gets the Content attribute of the FileClassLoader object
java.io.InputStream	getInputStream(java.net.URL url) Gets the InputStream attribute of the FileClassLoader object
protected byte[]	loadClassBytes(java.lang.String className) Must be implmented by subclass.
void	setLoadLocalClasses(boolean b)
protected boolean	useLocalLoader(java.lang.String className)

Methods inherited from class com.objectwave.customClassLoader.MultiClassLoader

findClass, formatClassName, getResource, getResourceAsStream, initPathInformation, loadClass, loadClass, loadLocalClassBytes, locateClass, lookForPreviousDefinitions, main, monitor, print, setClassNameReplacementChar

Methods inherited from class java.lang.ClassLoader

clearAssertionStatus, defineClass, defineClass, defineClass, definePackage, findLibrary, findLoadedClass, findResource, findResources, findSystemClass, getPackage, getPackages, getParent, getResources, getSystemClassLoader, getSystemResource, getSystemResourceAsStream, getSystemResources, 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

FileClassLoader

public FileClassLoader(java.lang.String filePrefix)

Attempts to load from a local file using the relative "filePrefix", ie starting at the current directory. For example

Parameters:

filePrefix - could be "webSiteClasses\\site1\\".

Method Detail

setLoadLocalClasses

public void setLoadLocalClasses(boolean b)

Parameters:

b - The new LoadLocalClasses value

getContent

public java.lang.Object getContent(java.net.URL url)
                            throws java.io.IOException

Gets the Content attribute of the FileClassLoader object

Specified by:

getContent in class MultiClassLoader

Parameters:

url -

Returns:

The Content value

Throws:

java.io.IOException

getInputStream

public java.io.InputStream getInputStream(java.net.URL url)
                                   throws java.io.IOException

Gets the InputStream attribute of the FileClassLoader object

Specified by:

getInputStream in class MultiClassLoader

Parameters:

url -

Returns:

The InputStream value

Throws:

java.io.IOException

addClassToSkip

public void addClassToSkip(java.lang.String className)

Add the name of a class that should not be loaded by this class loader. Usefull for sharing classes.

Parameters:

className - The feature to be added to the ClassToSkip attribute

forceLoadClass

public java.lang.Class forceLoadClass(java.lang.String className)
                               throws java.lang.ClassNotFoundException

Parameters:

className -

Returns:

Throws:

java.lang.ClassNotFoundException

useLocalLoader

protected boolean useLocalLoader(java.lang.String className)

Overrides:

useLocalLoader in class MultiClassLoader

Parameters:

className -

Returns:

formatURL

protected java.net.URL formatURL(java.net.URL url)
                          throws java.io.IOException

Parameters:

url -

Returns:

Throws:

java.io.IOException

loadClassBytes

protected byte[] loadClassBytes(java.lang.String className)

Description copied from class: MultiClassLoader

Must be implmented by subclass. Use whatever means necesssary to return a byte[]. This is the only method needs to be implemented in most cases.

Specified by:

loadClassBytes in class MultiClassLoader

Parameters:

className -

Returns: