edu.luc.cs.trull
Class ActionComponent

java.lang.Object
  edu.luc.cs.trull.EmptyComponent
      edu.luc.cs.trull.TerminatingComponent
          edu.luc.cs.trull.ActionComponent

All Implemented Interfaces:

Component, PropertyChangeSource, Startable, Suspendable, Terminating, java.beans.PropertyChangeListener, java.util.EventListener

Direct Known Subclasses:

Done

public class ActionComponent
extends TerminatingComponent

An adapter for using a simple PropertyChangeListener as a Trull component. When started, this component invokes the listener method and then terminates.

See Also:

PropertyChangeListener

Field Summary

private java.beans.PropertyChangeListener	action The action of this component.
private static org.apache.log4j.Logger	logger

Constructor Summary

ActionComponent()
Creates an ActionComponent component with a null listener.

ActionComponent(java.beans.PropertyChangeListener action)
Creates an ActionComponent component with the given listener as its action.

Method Summary

java.beans.PropertyChangeListener	getAction() Gets the action of this component.
void	setAction(java.beans.PropertyChangeListener action) Sets the action of this component to the given listener.
void	start(java.beans.PropertyChangeEvent incoming) Starts this startable component.
void	stop() Stops this startable component.

Methods inherited from class edu.luc.cs.trull.TerminatingComponent

fireTermination, getParent, getTermEvent, scheduleTermination, setTerminationListener

Methods inherited from class edu.luc.cs.trull.EmptyComponent

addPropertyChangeListener, getPropertyChangeListeners, getTerminationListener, propertyChange, removePropertyChangeListener, resume, suspend

Methods inherited from class java.lang.Object

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

Field Detail

action

private java.beans.PropertyChangeListener action

The action of this component.

logger

private static final org.apache.log4j.Logger logger

Constructor Detail

ActionComponent

public ActionComponent()

Creates an ActionComponent component with a null listener.

ActionComponent

public ActionComponent(java.beans.PropertyChangeListener action)

Creates an ActionComponent component with the given listener as its action.

Parameters:

action - the listener to be used as the action. May be null.

Method Detail

getAction

public java.beans.PropertyChangeListener getAction()

Gets the action of this component.

Returns:

the listener used as the action.

setAction

public void setAction(java.beans.PropertyChangeListener action)

Sets the action of this component to the given listener.

Parameters:

action - the listener to be used as the action. May be null.

start

public void start(java.beans.PropertyChangeEvent incoming)

Description copied from interface: Startable

Starts this startable component.

Specified by:

start in interface Startable

Overrides:

start in class EmptyComponent

Parameters:

incoming - the event that triggered the invocation of this method. May be null.

stop

public void stop()

Description copied from interface: Startable

Stops this startable component.

Specified by:

stop in interface Startable

Overrides:

stop in class EmptyComponent