edu.umd.cfar.lamp.viper.util
Class AbstractViperSelection

java.lang.Object
  edu.umd.cfar.lamp.viper.util.AbstractViperSelection

All Implemented Interfaces:

ViperSelection

Direct Known Subclasses:

AbstractViperSubTree, ViperSelectionSet

public abstract class AbstractViperSelection

extends java.lang.Object

implements ViperSelection

Implements event handling for viper selection.

Field Summary

protected boolean

notifyingListeners

Constructor Summary

AbstractViperSelection()

Method Summary

void	addChangeListener(javax.swing.event.ChangeListener l) Adds a change listener to the selection. The listener is to be notified whenver the collection of selected objects changes.
protected void	fireChangeEvent(javax.swing.event.ChangeEvent e) Fire a change event to all registered listeners.
javax.swing.event.ChangeListener[]	getChangeListeners() Gets a list of the attached listeners.
void	removeChangeListener(javax.swing.event.ChangeListener l) Removes the attached listener.
protected boolean	writeLock()
protected void	writeUnlock()

Methods inherited from class java.lang.Object

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

Methods inherited from interface edu.umd.cfar.lamp.viper.util.ViperSelection

isEmpty, isSelected

Field Detail

notifyingListeners

protected boolean notifyingListeners

Constructor Detail

AbstractViperSelection

public AbstractViperSelection()

Method Detail

addChangeListener

public void addChangeListener(javax.swing.event.ChangeListener l)

Adds a change listener to the selection. The listener is to be notified whenver the collection of selected objects changes.

Specified by:

addChangeListener in interface ViperSelection

Parameters:

l - an event listener

removeChangeListener

public void removeChangeListener(javax.swing.event.ChangeListener l)

Removes the attached listener.

Specified by:

removeChangeListener in interface ViperSelection

Parameters:

l - an event listener

getChangeListeners

public javax.swing.event.ChangeListener[] getChangeListeners()

Gets a list of the attached listeners.

Specified by:

getChangeListeners in interface ViperSelection

Returns:

all currently attached listeners

fireChangeEvent

protected void fireChangeEvent(javax.swing.event.ChangeEvent e)

Fire a change event to all registered listeners.

Parameters:

e - null if you wish to use a default change event, with this as the source

writeLock

protected boolean writeLock()

writeUnlock

protected void writeUnlock()