org.apache.avalon.fortress.examples.viewer
Class ComponentViewer

java.lang.Object
  org.apache.avalon.framework.logger.AbstractLogEnabled
      org.apache.avalon.fortress.impl.AbstractContainer
          org.apache.avalon.fortress.impl.DefaultContainer
              org.apache.avalon.fortress.examples.viewer.ComponentViewer

All Implemented Interfaces:

java.awt.event.ActionListener, Configurable, Container, Contextualizable, Disposable, java.util.EventListener, Initializable, LogEnabled, java.lang.Runnable, Serviceable, Startable

public final class ComponentViewer

extends DefaultContainer

implements Startable, java.awt.event.ActionListener, java.lang.Runnable

Simple Fortress container containing a Swing based viewer for performing lookups on registered components.

The intention of the viewer is to allow you to perform a lookup of a component manually, (currently) so you can check the see the effect of lazy vs startup initialization.

REVISIT: add a text component which tracks the log file to make it easier to see a component being initialized upon first lookup.

Version:

CVS $Revision: 1.8 $ $Date: 2004/02/24 22:31:22 $

Author:

Avalon Development Team

Field Summary

Fields inherited from class org.apache.avalon.fortress.impl.AbstractContainer

DEFAULT_ENTRY, m_classLoader, m_commandSink, m_componentContext, m_context, m_extManager, m_instrumentManager, m_loggerManager, m_mapper, m_metaManager, m_poolManager, m_serviceManager, m_shutDownOrder, SELECTOR_ENTRY

Fields inherited from interface org.apache.avalon.fortress.Container

ROLE

Constructor Summary

ComponentViewer()

Method Summary

void	actionPerformed(java.awt.event.ActionEvent evt) Handles the lookup event.
void	initialize() Initializes this component.
void	run()
void	start() Starts the component, makes GUI visible, ready for use.
void	stop() Stops component, make GUI invisible, ready for decomissioning.

Methods inherited from class org.apache.avalon.fortress.impl.DefaultContainer

configure, getServiceManager, interpretProxy

Methods inherited from class org.apache.avalon.fortress.impl.AbstractContainer

addComponent, contextualize, createHintMap, createObjectFactory, dispose, get, getProxyManager, getRoleKey, has, provideComponentContext, provideServiceManager, service, setProxyManager

Methods inherited from class org.apache.avalon.framework.logger.AbstractLogEnabled

enableLogging, getLogger, setupLogger, setupLogger, setupLogger

Methods inherited from class java.lang.Object

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

Constructor Detail

ComponentViewer

public ComponentViewer()

Method Detail

initialize

public void initialize()
                throws java.lang.Exception

Initializes this component. Creates simple Swing GUI containing available translations for the key 'hello-world'.

Specified by:

initialize in interface Initializable

Overrides:

initialize in class AbstractContainer

Throws:

java.lang.Exception - if an error occurs

start

public void start()

Starts the component, makes GUI visible, ready for use.

Specified by:

start in interface Startable

stop

public void stop()

Stops component, make GUI invisible, ready for decomissioning.

Specified by:

stop in interface Startable

actionPerformed

public void actionPerformed(java.awt.event.ActionEvent evt)

Handles the lookup event. Finds out which component was selected and performs a lookup and release on this component.

Specified by:

actionPerformed in interface java.awt.event.ActionListener

Parameters:

evt - an ActionEvent value

run

public void run()

Specified by:

run in interface java.lang.Runnable