PageBoxLib
Class InstallClassLoader

java.lang.Object
  java.lang.ClassLoader
      PageBoxLib.InstallClassLoader

class InstallClassLoader

extends java.lang.ClassLoader

Class loader used to load the installation class.
Invoked by Repository.

Changes:

• 0.0.7: sandbox support
• 0.1.0: getMessage -> toString to get more info in case of exception;

alexis.grandemange@pagebox.net

Copyright (c) 2002-2004 Alexis Grandemange

This program is free software; you can redistribute it and/or
 modify it under the terms of the GNU Lesser General Public License
 as published by the Free Software Foundation; version 2.1 of the
 License.
 This library is distributed in the hope that it will be useful,
 but WITHOUT ANY WARRANTY; without even the implied warranty of
 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 GNU Lesser General Public License for more details.
 A copy of the GNU Lesser General Public License lesser.txt should be
 included in the distribution.

Version:

0, 1, 0

Author:

Alexis Grandemange

Nested Class Summary

Nested classes inherited from class java.lang.ClassLoader

Field Summary

private java.lang.String	archName Archive name
(package private) java.lang.String	classDir archive directory
(package private) java.util.HashMap	classes Class cache Key: class name Value: Class object
private Log	log Logging object
(package private) java.lang.ClassLoader	parent Class loader of the class that instantiates InstallClassLoader.
private java.security.ProtectionDomain	pd Install class protection domain

Fields inherited from class java.lang.ClassLoader

Constructor Summary

(package private)

InstallClassLoader(java.lang.String classDir, java.lang.ClassLoader parent, java.lang.String repUrl, Log log, java.lang.String archDir, java.lang.String archName) Constructor.

Method Summary

java.lang.Class	loadClass(java.lang.String name, boolean resolve) Method called by DeployImpl and by the JVM to load classes.
private java.lang.Class	loadForward(java.lang.String name) Forwards class load requests to the system and then to the parent class loader.

Methods inherited from class java.lang.ClassLoader

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

classDir

java.lang.String classDir

archive directory

classes

java.util.HashMap classes

Class cache

• Key: class name
• Value: Class object

parent

java.lang.ClassLoader parent

Class loader of the class that instantiates InstallClassLoader.

pd

private java.security.ProtectionDomain pd

Install class protection domain

log

private Log log

Logging object

archName

private java.lang.String archName

Archive name

Constructor Detail

InstallClassLoader

InstallClassLoader(java.lang.String classDir,
                   java.lang.ClassLoader parent,
                   java.lang.String repUrl,
                   Log log,
                   java.lang.String archDir,
                   java.lang.String archName)

Constructor. Sets the installation directory.

Parameters:

classDir - classes directory

parent - class loader of the class that created InstallClassLoader

repUrl - URL of the RepoQuery Web service of the deploying Repository

log - logging object

archDir - archive directory

archName - archive name.

Method Detail

loadForward

private final java.lang.Class loadForward(java.lang.String name)
                                   throws java.lang.ClassNotFoundException

Forwards class load requests to the system and then to the parent class loader.

Parameters:

name - class name

Returns:

loaded class

Throws:

java.lang.ClassNotFoundException

loadClass

public java.lang.Class loadClass(java.lang.String name,
                                 boolean resolve)
                          throws java.lang.ClassNotFoundException

Method called by DeployImpl and by the JVM to load classes.

Parameters:

name - class name

resolve - true if the class must be resolved

Returns:

loaded class

Throws:

java.lang.ClassNotFoundException