prefuse.util
Class UpdateListener

java.lang.Object
  prefuse.util.UpdateListener

All Implemented Interfaces:

java.awt.event.ComponentListener, java.util.EventListener, ExpressionListener, TupleSetListener

public abstract class UpdateListener
extends java.lang.Object
implements ExpressionListener, TupleSetListener, java.awt.event.ComponentListener

Convenience listener class that implements ExpressionListener, TupleSetListener, and ComponentListener and routes all the callbacks into a generic update(Object) method. For the case of ComponentListener, only the resize event is funneled into the update method.

Author:

jeffrey heer

Constructor Summary

UpdateListener()

Method Summary

void	componentHidden(java.awt.event.ComponentEvent e) Does nothing.
void	componentMoved(java.awt.event.ComponentEvent e) Does nothing.
void	componentResized(java.awt.event.ComponentEvent e)
void	componentShown(java.awt.event.ComponentEvent e) Does nothing.
void	expressionChanged(Expression expr) Notification that an Expression instance has been modified in some way.
void	tupleSetChanged(TupleSet tset, Tuple[] added, Tuple[] removed) Notification that a TupleSet has changed.
abstract void	update(java.lang.Object source) Generic update routine triggerred by any of the other callbacks.

Methods inherited from class java.lang.Object

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

Constructor Detail

UpdateListener

public UpdateListener()

Method Detail

update

public abstract void update(java.lang.Object source)

Generic update routine triggerred by any of the other callbacks.

Parameters:

source - a source object, either the Expression, TupleSet, or Component that triggered this update event.

expressionChanged

public void expressionChanged(Expression expr)

Description copied from interface: ExpressionListener

Notification that an Expression instance has been modified in some way.

Specified by:

expressionChanged in interface ExpressionListener

Parameters:

expr - the modified expression

See Also:

ExpressionListener.expressionChanged(prefuse.data.expression.Expression)

tupleSetChanged

public void tupleSetChanged(TupleSet tset,
                            Tuple[] added,
                            Tuple[] removed)

Description copied from interface: TupleSetListener

Notification that a TupleSet has changed.

Specified by:

tupleSetChanged in interface TupleSetListener

Parameters:

tset - the TupleSet that has changed

added - an array (potentially zero-length) of added tuples

removed - an array (potentially zero-length) of removed tuples

See Also:

TupleSetListener.tupleSetChanged(prefuse.data.tuple.TupleSet, prefuse.data.Tuple[], prefuse.data.Tuple[])

componentResized

public void componentResized(java.awt.event.ComponentEvent e)

Specified by:

componentResized in interface java.awt.event.ComponentListener

See Also:

ComponentListener.componentResized(java.awt.event.ComponentEvent)

componentHidden

public void componentHidden(java.awt.event.ComponentEvent e)

Does nothing.

Specified by:

componentHidden in interface java.awt.event.ComponentListener

See Also:

ComponentListener.componentHidden(java.awt.event.ComponentEvent)

componentMoved

public void componentMoved(java.awt.event.ComponentEvent e)

Does nothing.

Specified by:

componentMoved in interface java.awt.event.ComponentListener

See Also:

ComponentListener.componentMoved(java.awt.event.ComponentEvent)

componentShown

public void componentShown(java.awt.event.ComponentEvent e)

Does nothing.

Specified by:

componentShown in interface java.awt.event.ComponentListener

See Also:

ComponentListener.componentShown(java.awt.event.ComponentEvent)