Package i5.las2peer.classLoaders

Class ServiceClassLoader

java.lang.Object

java.lang.ClassLoader

i5.las2peer.classLoaders.ServiceClassLoader

public class ServiceClassLoader
extends ClassLoader

A service class loader is responsible for loading classes from the service bundle, probably loaded via a Repository

Constructor Summary

Constructors

Constructor	Description
ServiceClassLoader(LoadedLibrary lib, ClassLoader parent, ClassLoaderPolicy policy)	create a new class loader for a given library.

Method Summary

Modifier and Type	Method	Description
protected Class<?>	findClass(String className)
LoadedLibrary	getLibrary()	get the library this loader is responsible for
URL	getResource(String resourceName)	get the URL for a resource
protected Class<?>	loadClass(String name, boolean resolve)	loading classes in a Library class loader follows the following steps: check if the class has already been loaded look into all bundles class loaders this library class loader has been registered to look into the bootstrap class loader alert that the class cannot be found

Methods inherited from class java.lang.ClassLoader

clearAssertionStatus, defineClass, defineClass, defineClass, defineClass, definePackage, findClass, findLibrary, findLoadedClass, findResource, findResource, findResources, findSystemClass, getClassLoadingLock, getDefinedPackage, getDefinedPackages, getName, getPackage, getPackages, getParent, getPlatformClassLoader, getResourceAsStream, getResources, getSystemClassLoader, getSystemResource, getSystemResourceAsStream, getSystemResources, getUnnamedModule, isRegisteredAsParallelCapable, loadClass, registerAsParallelCapable, resolveClass, resources, setClassAssertionStatus, setDefaultAssertionStatus, setPackageAssertionStatus, setSigners

Methods inherited from class java.lang.Object

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

Constructor Details

ServiceClassLoader

public ServiceClassLoader(LoadedLibrary lib,
 ClassLoader parent,
 ClassLoaderPolicy policy)

create a new class loader for a given library.

Parameters:

lib - A library to load service classes from

parent - A parent class loader

policy - A class loader policy

Method Details

findClass

protected Class<?> findClass(String className)
                      throws ClassNotFoundException

Overrides:

findClass in class ClassLoader

Throws:

ClassNotFoundException

loadClass

protected Class<?> loadClass(String name,
 boolean resolve)
                      throws ClassNotFoundException

loading classes in a Library class loader follows the following steps: check if the class has already been loaded look into all bundles class loaders this library class loader has been registered to look into the bootstrap class loader alert that the class cannot be found

Overrides:

loadClass in class ClassLoader

Parameters:

name - A class name to load

resolve - If true the loaded class is resolved

Returns:

class definition of the requested class

Throws:

ClassNotFoundException - If the class was not found

getLibrary

public LoadedLibrary getLibrary()

get the library this loader is responsible for

Returns:

library linked to this classloader

getResource

public URL getResource(String resourceName)

get the URL for a resource

Overrides:

getResource in class ClassLoader

Parameters:

resourceName - A resource name

Returns:

Returns the URL for the resource or null, if the resource was not found