com.sun.enterprise.module.impl
Class ModulesRegistryImpl

java.lang.Object
  com.sun.enterprise.module.common_impl.AbstractModulesRegistryImpl
      com.sun.enterprise.module.impl.ModulesRegistryImpl

All Implemented Interfaces:

ModuleChangeListener, ModulesRegistry, InhabitantsParserFactory

Direct Known Subclasses:

ClassPathBasedModulesRegistry, SingleModulesRegistry

public class ModulesRegistryImpl
extends AbstractModulesRegistryImpl

Author:

Jerome Dochez, Sanjeeb.Sahoo@Sun.COM

Field Summary

Fields inherited from class com.sun.enterprise.module.common_impl.AbstractModulesRegistryImpl

modules, parent, providers, repositories

Constructor Summary

ModulesRegistryImpl(ModulesRegistry parent)

Method Summary

ModulesRegistry	createChild() Creates a new child ModulesRegistryImpl in this ModulesRegistryImpl.
void	detachAll() Detaches all the modules from this registry.
Module	find(java.lang.Class clazz) Finds the Module that owns the given class.
java.util.List<ModuleLifecycleListener>	getLifecycleListeners()
java.lang.ClassLoader	getModulesClassLoader(java.lang.ClassLoader parent, java.util.Collection<ModuleDefinition> defs) Returns a ClassLoader capable of loading classes from a set of modules identified by their module definition
java.lang.ClassLoader	getModulesClassLoader(java.lang.ClassLoader parent, java.util.Collection<ModuleDefinition> defs, java.net.URL[] urls) Returns a ClassLoader capable of loading classes from a set of modules identified by their module definition and also load new urls.
java.lang.ClassLoader	getParentClassLoader() Returns the parent class loader parenting the class loaders created by modules associated with this registry.
ModuleImpl	getProvidingModule(java.lang.String providerClassName) Gets the Module that provides the provider of the given name.
protected Module	newModule(ModuleDefinition moduleDef) Factory method for creating new instances of Module.
protected java.util.List<ActiveDescriptor>	parseInhabitants(Module module, java.lang.String name, ServiceLocator serviceLocator)
void	register(ModuleLifecycleListener listener) Add a ModuleLifecycleListener to this registry.
void	setParentClassLoader(java.lang.ClassLoader parent) Sets the classloader parenting the class loaders created by the modules associated with this registry.
void	shutdown() Shuts down this module's registry, apply housekeeping tasks
void	unregister(ModuleLifecycleListener listener) Removes an ModuleLifecycleListener from this registry.

Methods inherited from class com.sun.enterprise.module.common_impl.AbstractModulesRegistryImpl

add, add, add, addRepository, addRepository, changed, createInhabitantsParser, createServiceLocator, createServiceLocator, createServiceLocator, dumpState, getModules, getModules, getModulesProvider, getProvidersClass, getRepository, getRunningServices, initializeServiceLocator, loadFromRepository, makeModuleFor, makeModuleFor, makeModuleFor, newServiceLocator, newServiceLocator, populateConfig, populateServiceLocator, print, registerRunningService, remove, removeRepository, unregisterRunningService

Methods inherited from class java.lang.Object

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

Constructor Detail

ModulesRegistryImpl

public ModulesRegistryImpl(ModulesRegistry parent)

Method Detail

createChild

public ModulesRegistry createChild()

Creates a new child ModulesRegistryImpl in this ModulesRegistryImpl.

newModule

protected Module newModule(ModuleDefinition moduleDef)

Description copied from class: AbstractModulesRegistryImpl

Factory method for creating new instances of Module.

Specified by:

newModule in class AbstractModulesRegistryImpl

Parameters:

moduleDef - module definition of the new module to be created

Returns:

a new Module instance

parseInhabitants

protected java.util.List<ActiveDescriptor> parseInhabitants(Module module,
                                                            java.lang.String name,
                                                            ServiceLocator serviceLocator)
                                                     throws java.io.IOException

Specified by:

parseInhabitants in class AbstractModulesRegistryImpl

Throws:

java.io.IOException

getProvidingModule

public ModuleImpl getProvidingModule(java.lang.String providerClassName)

Description copied from interface: ModulesRegistry

Gets the Module that provides the provider of the given name.

Specified by:

getProvidingModule in interface ModulesRegistry

Overrides:

getProvidingModule in class AbstractModulesRegistryImpl

setParentClassLoader

public void setParentClassLoader(java.lang.ClassLoader parent)

Sets the classloader parenting the class loaders created by the modules associated with this registry.

Parameters:

parent - parent class loader

getParentClassLoader

public java.lang.ClassLoader getParentClassLoader()

Returns the parent class loader parenting the class loaders created by modules associated with this registry.

Returns:

the parent classloader

getModulesClassLoader

public java.lang.ClassLoader getModulesClassLoader(java.lang.ClassLoader parent,
                                                   java.util.Collection<ModuleDefinition> defs,
                                                   java.net.URL[] urls)
                                            throws ResolveError

Returns a ClassLoader capable of loading classes from a set of modules identified by their module definition and also load new urls.

Parameters:

parent - the parent class loader for the returned class loader instance

defs - module definitions for all modules this classloader should be capable of loading

urls - urls to be added to the module classloader

Returns:

class loader instance

Throws:

ResolveError - if one of the provided module definition cannot be resolved

getModulesClassLoader

public java.lang.ClassLoader getModulesClassLoader(java.lang.ClassLoader parent,
                                                   java.util.Collection<ModuleDefinition> defs)
                                            throws ResolveError

Returns a ClassLoader capable of loading classes from a set of modules identified by their module definition

Parameters:

parent - the parent class loader for the returned class loader instance

defs - module definitions for all modules this classloader should be capable of loading classes from

Returns:

class loader instance

Throws:

ResolveError - if one of the provided module definition cannot be resolved

find

public Module find(java.lang.Class clazz)

Description copied from interface: ModulesRegistry

Finds the Module that owns the given class.

Returns:

null if the class is loaded outside the module system.

register

public void register(ModuleLifecycleListener listener)

Add a ModuleLifecycleListener to this registry. The listener will be notified for each module startup and shutdown.

Parameters:

listener - the listener implementation

unregister

public void unregister(ModuleLifecycleListener listener)

Removes an ModuleLifecycleListener from this registry. Notification of module startup and shutdown will not be emitted to this listener any longer.

Parameters:

listener - the listener to unregister

getLifecycleListeners

public java.util.List<ModuleLifecycleListener> getLifecycleListeners()

detachAll

public void detachAll()

Detaches all the modules from this registry. The modules are not deconstructed when calling this method.

shutdown

public void shutdown()

Shuts down this module's registry, apply housekeeping tasks