Package ucar.unidata.data

Class DataReferenceListener

java.lang.Object

visad.ThingReferenceImpl

visad.DataReferenceImpl

ucar.unidata.data.DataReferenceListener

All Implemented Interfaces:

EventListener, DataReference, ThingChangedListener, ThingReference

public class DataReferenceListener
extends DataReferenceImpl
implements ThingChangedListener

A class for listening to changes in DataReferences

Version:

$Revision: 1.14 $

Author:

Jeff McWhirter

Constructor Summary

Constructors

Constructor	Description
DataReferenceListener(String name)	Create a new DataReferenceListener

Method Summary

Modifier and Type	Method	Description
void	addDataReference(DataReference dataRef)	Add a DataReference to this listener
boolean	thingChanged(ThingChangedEvent e)	Called when the data in the reference changes

Methods inherited from class visad.DataReferenceImpl

equals, getData, getType, setData, toString

Methods inherited from class visad.ThingReferenceImpl

acknowledgeThingChanged, adaptedAcknowledgeThingChanged, adaptedPeekThingChanged, addThingChangedListener, findThingChangedLink, getName, getThing, getTick, incTick, peekThingChanged, removeThingChangedListener, setThing

Methods inherited from class java.lang.Object

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

Methods inherited from interface visad.ThingReference

acknowledgeThingChanged, addThingChangedListener, getName, getThing, getTick, incTick, peekThingChanged, removeThingChangedListener, setThing

Constructor Details

DataReferenceListener

public DataReferenceListener(String name)
                      throws VisADException

Create a new DataReferenceListener

Parameters:

name - name of the reference

Throws:

VisADException - problem creating this object

Method Details

thingChanged

public boolean thingChanged(ThingChangedEvent e)
                     throws VisADException,
RemoteException

Called when the data in the reference changes

Specified by:

thingChanged in interface ThingChangedListener

Parameters:

e - change event

Returns:

true

Throws:

RemoteException - Java RMI problem

VisADException - VisAD problem

addDataReference

public void addDataReference(DataReference dataRef)
                      throws VisADException,
RemoteException

Add a DataReference to this listener

Parameters:

dataRef - DataReference to add

Throws:

RemoteException - Java RMI problem

VisADException - VisAD problem