org.norther.tammi.core.base
Class Loader

java.lang.Object
  java.lang.ClassLoader
      java.security.SecureClassLoader
          java.net.URLClassLoader
              org.norther.tammi.acorn.net.URLClassLoader
                  org.norther.tammi.core.base.Loader

All Implemented Interfaces:

Serializable, MBeanRegistration, NotificationBroadcaster, LoaderMBean, NamePattern, ReferableMBean

public class Loader
extends URLClassLoader
implements LoaderMBean, NamePattern, MBeanRegistration, NotificationBroadcaster, Serializable

A default implementation of LoaderMBean.

Author:

Ilkka Priha

See Also:

Serialized Form

Field Summary

Fields inherited from interface org.norther.tammi.core.base.ReferableMBean

DEFAULT_ID, ID, MBEAN, MBEAN_DESCRIPTION, TYPE

Constructor Summary

Loader()
Constructs a new MBean loader.

Loader(ClassLoader parent)
Constructs a new MBean loader with a parent.

Loader(URL[] urls)
Constructs a new MBean loader with URLs.

Loader(URL[] urls, ClassLoader parent)
Constructs a new MBean loader with URLs and a parent.

Method Summary

void	addNotificationListener(NotificationListener listener, NotificationFilter filter, Object handback)
void	addURL(URL url) Adds a new URL to search paths.
MBeanReference	getMBean() Gets a reference to the MBean.
String	getNamePattern() Gets the name pattern as a string.
MBeanNotificationInfo[]	getNotificationInfo()
ObjectName	getQueryPattern() Gets the name pattern as an object name query.
boolean	isClassDefined(String name) Checks whether the named class is defined.
void	postDeregister()
void	postRegister(Boolean done)
void	preDeregister()
ObjectName	preRegister(MBeanServer server, ObjectName name)
void	removeNotificationListener(NotificationListener listener)
void	setNamePattern(String pattern) Sets the name pattern as a string.
void	setQueryPattern(ObjectName pattern) Sets the name pattern as an object name query.

Methods inherited from class org.norther.tammi.acorn.net.URLClassLoader

defineClass, defineSubclass, defineSubclass

Methods inherited from class java.net.URLClassLoader

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

Methods inherited from class java.security.SecureClassLoader

defineClass, defineClass

Methods inherited from class java.lang.ClassLoader

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

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.norther.tammi.core.base.LoaderMBean

defineClass, defineSubclass, defineSubclass, getResource, getResourceAsStream, getResources, getURLs, loadClass

Constructor Detail

Loader

public Loader()

Constructs a new MBean loader.

Loader

public Loader(URL[] urls)

Constructs a new MBean loader with URLs.

Parameters:

urls - an array of resource URLs.

Loader

public Loader(ClassLoader parent)

Constructs a new MBean loader with a parent.

Parameters:

parent - the parent class loader.

Loader

public Loader(URL[] urls,
              ClassLoader parent)

Constructs a new MBean loader with URLs and a parent.

Parameters:

urls - an array of resource URLs.

parent - the parent class loader.

Method Detail

preRegister

public ObjectName preRegister(MBeanServer server,
                              ObjectName name)
                       throws Exception

Specified by:

preRegister in interface MBeanRegistration

Throws:

Exception

postRegister

public void postRegister(Boolean done)

Specified by:

postRegister in interface MBeanRegistration

preDeregister

public void preDeregister()
                   throws Exception

Specified by:

preDeregister in interface MBeanRegistration

Throws:

Exception

postDeregister

public void postDeregister()

Specified by:

postDeregister in interface MBeanRegistration

getMBean

public MBeanReference getMBean()

Description copied from interface: ReferableMBean

Gets a reference to the MBean.

Specified by:

getMBean in interface ReferableMBean

Returns:

a reference to the MBean.

isClassDefined

public boolean isClassDefined(String name)

Description copied from interface: LoaderMBean

Checks whether the named class is defined.

Specified by:

isClassDefined in interface LoaderMBean

Parameters:

name - the name of the class.

Returns:

true if defined, false otherwise.

addURL

public void addURL(URL url)

Description copied from interface: LoaderMBean

Adds a new URL to search paths.

Specified by:

addURL in interface LoaderMBean

Overrides:

addURL in class URLClassLoader

Parameters:

url - the new URL.

getNamePattern

public String getNamePattern()

Description copied from interface: NamePattern

Gets the name pattern as a string.

Specified by:

getNamePattern in interface NamePattern

Returns:

the name pattern or null.

setNamePattern

public void setNamePattern(String pattern)
                    throws MalformedObjectNameException

Description copied from interface: NamePattern

Sets the name pattern as a string.

Specified by:

setNamePattern in interface NamePattern

Parameters:

pattern - the name pattern.

Throws:

MalformedObjectNameException - for an invalid name.

getQueryPattern

public ObjectName getQueryPattern()

Description copied from interface: NamePattern

Gets the name pattern as an object name query.

Specified by:

getQueryPattern in interface NamePattern

Returns:

the query pattern or null.

setQueryPattern

public void setQueryPattern(ObjectName pattern)

Description copied from interface: NamePattern

Sets the name pattern as an object name query. The name pattern is applied when generating a unique name during registration of an unnamed MBean.

Specified by:

setQueryPattern in interface NamePattern

Parameters:

pattern - the query pattern.

addNotificationListener

public void addNotificationListener(NotificationListener listener,
                                    NotificationFilter filter,
                                    Object handback)

Specified by:

addNotificationListener in interface NotificationBroadcaster

removeNotificationListener

public void removeNotificationListener(NotificationListener listener)
                                throws ListenerNotFoundException

Specified by:

removeNotificationListener in interface NotificationBroadcaster

Throws:

ListenerNotFoundException

getNotificationInfo

public MBeanNotificationInfo[] getNotificationInfo()

Specified by:

getNotificationInfo in interface NotificationBroadcaster