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org.apache.cocoon.classloader
Class DefaultClassLoader

java.lang.Object
  java.lang.ClassLoader
      java.security.SecureClassLoader
          java.net.URLClassLoader
              org.apache.cocoon.classloader.DefaultClassLoader

public class DefaultClassLoader

extends URLClassLoader

This class loader reverses the search order for classes. It checks this classloader before it checks its parent. In addition it can be configured with includes and excludes.

Since:

2.2

Version:

$Id: DefaultClassLoader.html 1304280 2012-03-23 11:18:01Z ilgrosso $

Field Summary

protected List	excludes
protected List	includes

Constructor Summary

DefaultClassLoader(URL[] urls, List includePatterns, List excludePatterns, ClassLoader parent)
Alternate constructor to define a parent and initial URL s.

DefaultClassLoader(URL[] urls, List includePatterns, List excludePatterns, ClassLoader parent, URLStreamHandlerFactory factory)
Alternate constructor to define a parent, initial URLs, and a default URLStreamHandlerFactory.

Method Summary

void	addDirectory(File file) Adds a new directory of class files.
void	addURL(URL url) Adds a new URL
protected Class	getClass(String name)
URL	getResource(String name) Gets a resource from this ClassLoader.
Class	loadClass(String name, boolean resolve) Loads the class from this ClassLoader.
protected boolean	tryClassHere(String name)

Methods inherited from class java.net.URLClassLoader

definePackage, findClass, findResource, findResources, getPermissions, getURLs, newInstance, newInstance

Methods inherited from class java.security.SecureClassLoader

defineClass

Methods inherited from class java.lang.ClassLoader

clearAssertionStatus, defineClass, defineClass, defineClass, definePackage, findLibrary, findLoadedClass, findSystemClass, getPackage, getPackages, getParent, 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

includes

protected final List includes

excludes

protected final List excludes

Constructor Detail

DefaultClassLoader

public DefaultClassLoader(URL[] urls,
                          List includePatterns,
                          List excludePatterns,
                          ClassLoader parent)

Alternate constructor to define a parent and initial URL s.

DefaultClassLoader

public DefaultClassLoader(URL[] urls,
                          List includePatterns,
                          List excludePatterns,
                          ClassLoader parent,
                          URLStreamHandlerFactory factory)

Alternate constructor to define a parent, initial URLs, and a default URLStreamHandlerFactory.

Method Detail

tryClassHere

protected boolean tryClassHere(String name)

getClass

protected Class getClass(String name)
                  throws ClassNotFoundException

Throws:

ClassNotFoundException

loadClass

public final Class loadClass(String name,
                             boolean resolve)
                      throws ClassNotFoundException

Loads the class from this ClassLoader. If the class does not exist in this one, we check the parent. Please note that this is the exact opposite of the ClassLoader spec. We use it to work around inconsistent class loaders from third party vendors.

Parameters:

name - the name of the class

resolve - if true then resolve the class

Returns:

the resulting Class object

Throws:

ClassNotFoundException - if the class could not be found

getResource

public final URL getResource(String name)

Gets a resource from this ClassLoader. If the resource does not exist in this one, we check the parent. Please note that this is the exact opposite of the ClassLoader spec. We use it to work around inconsistent class loaders from third party vendors.

Parameters:

name - of resource

addDirectory

public final void addDirectory(File file)
                        throws IOException

Adds a new directory of class files.

Parameters:

file - for jar or directory

Throws:

IOException

addURL

public void addURL(URL url)

Adds a new URL