us.daveread.basicquery

Class DynamicClassLoader

java.lang.Object

java.lang.ClassLoader

us.daveread.basicquery.DynamicClassLoader

public class DynamicClassLoader
extends java.lang.ClassLoader

Title: Dynamic class loader

Description: Dynamically load classes

Copyright: Copyright (c) 2004-2014, David Read

This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version.

This program 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 General Public License for more details.

You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA

Author:

David Read

Field Summary

Fields

Modifier and Type	Field and Description
private java.util.Map<java.lang.String,java.lang.Class<?>>	cachedClasses Cache of loaded classes
private java.net.URLClassLoader	classLoader URL class loader instance
private static org.apache.log4j.Logger	LOGGER Logger

Constructor Summary

Constructors

Constructor and Description
DynamicClassLoader(java.util.List<java.io.File> archives) Create a DynamicClassLoader instance from a list of file paths

Method Summary

Methods

Modifier and Type	Method and Description
java.lang.Class<?>	loadClass(java.lang.String className)
java.lang.Class<?>	loadClass(java.lang.String className, boolean resolveIt)
void	setupClassLoader(java.util.List<java.io.File> archives) Add the files to the class loader

Methods inherited from class java.lang.ClassLoader

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

LOGGER

private static final org.apache.log4j.Logger LOGGER

Logger

cachedClasses

private java.util.Map<java.lang.String,java.lang.Class<?>> cachedClasses

Cache of loaded classes

classLoader

private java.net.URLClassLoader classLoader

URL class loader instance

Constructor Detail

DynamicClassLoader

public DynamicClassLoader(java.util.List<java.io.File> archives)

Create a DynamicClassLoader instance from a list of file paths

Parameters:

archives - A list of file paths

Method Detail

setupClassLoader

public void setupClassLoader(java.util.List<java.io.File> archives)

Add the files to the class loader

Parameters:

archives - The list of file paths to class libraries

loadClass

public java.lang.Class<?> loadClass(java.lang.String className)
                             throws java.lang.ClassNotFoundException

Overrides:

loadClass in class java.lang.ClassLoader

Throws:

java.lang.ClassNotFoundException

loadClass

public java.lang.Class<?> loadClass(java.lang.String className,
                           boolean resolveIt)
                             throws java.lang.ClassNotFoundException

Overrides:

loadClass in class java.lang.ClassLoader

Throws:

java.lang.ClassNotFoundException