org.apache.axis2.classloader

Class JarFileClassLoader

java.lang.Object

java.lang.ClassLoader

java.security.SecureClassLoader

java.net.URLClassLoader

org.apache.axis2.classloader.MultiParentClassLoader

org.apache.axis2.classloader.JarFileClassLoader

All Implemented Interfaces:

java.io.Closeable, java.lang.AutoCloseable, BeanInfoCachingClassLoader

public class JarFileClassLoader
extends MultiParentClassLoader
implements BeanInfoCachingClassLoader

The JarFileClassLoader that loads classes and resources from a list of JarFiles. This method is simmilar to URLClassLoader except it properly closes JarFiles when the classloader is destroyed so that the file read lock will be released, and the jar file can be modified and deleted.

Version:

$Rev: 725315 $ $Date: 2008-12-10 21:15:38 +0530 (Wed, 10 Dec 2008) $

Constructor Summary

Constructors

Constructor and Description
JarFileClassLoader(JarFileClassLoader source)
JarFileClassLoader(java.net.URL[] urls) Creates a JarFileClassLoader that is a child of the system class loader.
JarFileClassLoader(java.net.URL[] urls, java.lang.ClassLoader parent) Creates a JarFileClassLoader that is a child of the specified class loader.
JarFileClassLoader(java.net.URL[] urls, java.lang.ClassLoader[] parents) Creates a named class loader as a child of the specified parents.
JarFileClassLoader(java.net.URL[] urls, java.lang.ClassLoader[] parents, boolean inverseClassLoading, java.util.Collection hiddenClasses, java.util.Collection nonOverridableClasses)
JarFileClassLoader(java.net.URL[] urls, java.lang.ClassLoader[] parents, boolean inverseClassLoading, java.lang.String[] hiddenClasses, java.lang.String[] nonOverridableClasses)
JarFileClassLoader(java.net.URL[] urls, java.lang.ClassLoader parent, boolean inverseClassLoading, java.lang.String[] hiddenClasses, java.lang.String[] nonOverridableClasses)

Method Summary

Modifier and Type	Method and Description
void	addURL(java.net.URL url)
protected void	addURLs(java.net.URL[] urls) Adds an array of urls to the end of this class loader.
static java.lang.ClassLoader	copy(java.lang.ClassLoader source)
void	destroy()
protected java.lang.Class	findClass(java.lang.String className)
protected java.lang.String	findLibrary(java.lang.String libraryName)
java.net.URL	findResource(java.lang.String resourceName)
BeanInfoCache	getBeanInfoCache() Get the BeanInfo cache for this class loader.
java.net.URL[]	getURLs()
protected java.util.Enumeration<java.net.URL>	internalfindResources(java.lang.String name)

Methods inherited from class org.apache.axis2.classloader.MultiParentClassLoader

findResources, getParents, getResource, isDestroyed, loadClass, toString

Methods inherited from class java.net.URLClassLoader

close, definePackage, getPermissions, getResourceAsStream, newInstance, newInstance

Methods inherited from class java.security.SecureClassLoader

defineClass, defineClass

Methods inherited from class java.lang.ClassLoader

clearAssertionStatus, defineClass, defineClass, defineClass, defineClass, definePackage, findLoadedClass, findSystemClass, getClassLoadingLock, getPackage, getPackages, getParent, getResources, getSystemClassLoader, getSystemResource, getSystemResourceAsStream, getSystemResources, loadClass, registerAsParallelCapable, resolveClass, setClassAssertionStatus, setDefaultAssertionStatus, setPackageAssertionStatus, setSigners

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

JarFileClassLoader

public JarFileClassLoader(java.net.URL[] urls)

Creates a JarFileClassLoader that is a child of the system class loader.

Parameters:

urls - a list of URLs from which classes and resources should be loaded

JarFileClassLoader

public JarFileClassLoader(java.net.URL[] urls,
                          java.lang.ClassLoader parent)

Creates a JarFileClassLoader that is a child of the specified class loader.

Parameters:

urls - a list of URLs from which classes and resources should be loaded

parent - the parent of this class loader

JarFileClassLoader

public JarFileClassLoader(java.net.URL[] urls,
                          java.lang.ClassLoader parent,
                          boolean inverseClassLoading,
                          java.lang.String[] hiddenClasses,
                          java.lang.String[] nonOverridableClasses)

JarFileClassLoader

public JarFileClassLoader(java.net.URL[] urls,
                          java.lang.ClassLoader[] parents)

Creates a named class loader as a child of the specified parents.

Parameters:

urls - the urls from which this class loader will classes and resources

parents - the parents of this class loader

JarFileClassLoader

public JarFileClassLoader(java.net.URL[] urls,
                          java.lang.ClassLoader[] parents,
                          boolean inverseClassLoading,
                          java.util.Collection hiddenClasses,
                          java.util.Collection nonOverridableClasses)

JarFileClassLoader

public JarFileClassLoader(java.net.URL[] urls,
                          java.lang.ClassLoader[] parents,
                          boolean inverseClassLoading,
                          java.lang.String[] hiddenClasses,
                          java.lang.String[] nonOverridableClasses)

JarFileClassLoader

public JarFileClassLoader(JarFileClassLoader source)

Method Detail

copy

public static java.lang.ClassLoader copy(java.lang.ClassLoader source)

getURLs

public java.net.URL[] getURLs()

Overrides:

getURLs in class java.net.URLClassLoader

addURL

public void addURL(java.net.URL url)

Overrides:

addURL in class MultiParentClassLoader

addURLs

protected void addURLs(java.net.URL[] urls)

Adds an array of urls to the end of this class loader.

Parameters:

urls - the URLs to add

destroy

public void destroy()

Overrides:

destroy in class MultiParentClassLoader

findResource

public java.net.URL findResource(java.lang.String resourceName)

Overrides:

findResource in class java.net.URLClassLoader

internalfindResources

protected java.util.Enumeration<java.net.URL> internalfindResources(java.lang.String name)
                                                             throws java.io.IOException

Throws:

java.io.IOException

findLibrary

protected java.lang.String findLibrary(java.lang.String libraryName)

Overrides:

findLibrary in class java.lang.ClassLoader

findClass

protected java.lang.Class findClass(java.lang.String className)
                             throws java.lang.ClassNotFoundException

Overrides:

findClass in class java.net.URLClassLoader

Throws:

java.lang.ClassNotFoundException

getBeanInfoCache

public final BeanInfoCache getBeanInfoCache()

Description copied from interface: BeanInfoCachingClassLoader

Get the BeanInfo cache for this class loader.

Specified by:

getBeanInfoCache in interface BeanInfoCachingClassLoader

Returns:

the cache instance; must not be null