BasicLoaderRepository (JBoss/JMX API) - JBoss 3.2.7 jmx API Documentation 英文版文档

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org.jboss.mx.loading
Class BasicLoaderRepository

java.lang.Object
  org.jboss.mx.loading.LoaderRepository
      org.jboss.mx.loading.BasicLoaderRepository

All Implemented Interfaces:: ClassLoaderRepository, ServerConstants

public class BasicLoaderRepository
extends LoaderRepository

Implements a simple classloader repository for the MBean server. The basic loader repository uses an unordered list of classloaders to try and load the required class. There is no attempt made to resolve conflicts between classes loaded by different classloaders.

A thread's context class loader is always searched first. Context class loader is not required to be registered to the repository.

Version:: $Revision: 1.6.4.4 $
Author:: Juha Lindfors.
See Also:: LoaderRepository

Field Summary

Fields inherited from class org.jboss.mx.loading.LoaderRepository

instance, loaders, nativeClassBySignature, translator

Fields inherited from interface org.jboss.mx.server.ServerConstants

CLASS_REMOVED, CLASSLOADER, CLASSLOADER_ADDED, CLASSLOADER_REMOVED, DEFAULT_DOMAIN, DEFAULT_LOADER_NAME, DEFAULT_LOADER_REPOSITORY_CLASS, DEFAULT_MBEAN_REGISTRY_CLASS, DEFAULT_MBEAN_SERVER_BUILDER_CLASS, DEFAULT_REQUIRED_MODELMBEAN_CLASS, DEFAULT_SCOPED_REPOSITORY_CLASS, DEFAULT_SCOPED_REPOSITORY_PARSER_CLASS, IMPLEMENTATION_NAME, IMPLEMENTATION_VENDOR, IMPLEMENTATION_VERSION, JMI_DOMAIN, LOADER_REPOSITORY_CLASS_PROPERTY, MBEAN_REGISTRY, MBEAN_REGISTRY_CLASS_PROPERTY, MBEAN_SERVER_BUILDER_CLASS_PROPERTY, MBEAN_SERVER_CONFIGURATION, MBEAN_SERVER_DELEGATE, OPTIMIZE_REFLECTED_DISPATCHER, REQUIRED_MODELMBEAN_CLASS_PROPERTY, SPECIFICATION_NAME, SPECIFICATION_VENDOR, SPECIFICATION_VERSION, UNIFIED_LOADER_REPOSITORY_CLASS

Constructor Summary

BasicLoaderRepository()


Method Summary

void addClassLoader(ClassLoader cl)
          Add a class loader to the repository

boolean addClassLoaderURL(ClassLoader cl, URL url)
          Update the set of URLs known to be associated with a previously added class loader.

URL getResource(String name, ClassLoader cl)
          Find a resource URL for the given name

void getResources(String name, ClassLoader cl, List urls)
          Find all resource URLs for the given name.

Class loadClass(String className)
          Attempts to load a class using the first found instance of a ClassLoader with a given class description.

Class loadClass(String name, boolean resolve, ClassLoader cl)
          Load the given class from the repository

Class loadClassWithout(ClassLoader skipLoader, String className)
          Attempts to load a class using the first found instance of a ClassLoader with a given class description.

UnifiedClassLoader newClassLoader(URL url, boolean addToRepository)
          Create UnifiedClassLoader and optionally add it to the repository

UnifiedClassLoader newClassLoader(URL url, URL origURL, boolean addToRepository)
          Create UnifiedClassLoader and optionally add it to the repository

void removeClassLoader(ClassLoader cl)
          Remove a cladd loader from the repository.

Methods inherited from class org.jboss.mx.loading.LoaderRepository

getCachedClass, getDefaultLoaderRepository, getLoaders, getNativeClassForName, getTranslator, getURLs, loadClassBefore, setTranslator

Methods inherited from class java.lang.Object

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

Constructor Detail

BasicLoaderRepository

public BasicLoaderRepository()

Method Detail

loadClass

public Class loadClass(String className)
                throws ClassNotFoundException

Attempts to load a class using the first found instance of a ClassLoader with a given class description.

Specified by:: loadClass in interface ClassLoaderRepository
Specified by:: loadClass in class LoaderRepository

Parameters:: className - fully qualified name of the class to load
Returns:: loaded class instance
Throws:: ClassNotFoundException - if the class was not found by any of the registered class loaders

loadClassWithout

public Class loadClassWithout(ClassLoader skipLoader,
                              String className)
                       throws ClassNotFoundException

Attempts to load a class using the first found instance of a ClassLoader with a given class description. If a non-null reference is passed as a skipLoader parameter then this class loader will not be used to load the requested class from the repository.

Specified by:: loadClassWithout in interface ClassLoaderRepository
Specified by:: loadClassWithout in class LoaderRepository

Parameters:: skipLoader - this class loader instance will be skipped when attempting to load the given class.; className - fully qualified name of the class to load
Returns:: loaded class instance
Throws:: ClassNotFoundException - if the class was not found by any of the registered class loaders