visad
Class ThingImpl

java.lang.Object
  visad.ThingImpl

All Implemented Interfaces:

Serializable, Cloneable, Thing

Direct Known Subclasses:

DataImpl, VMethod, VRealType

public class ThingImpl
extends Object
implements Thing, Cloneable, Serializable

ThingImpl is the abstract superclass of the VisAD objects that send ThingChangedEvents to Actions.

See Also:

Serialized Form

Constructor Summary

ThingImpl()

Method Summary

void	addReference(ThingReference r) Adds a listener for changes to this thing.
Object	clone() Clones this instance.
void	notifyReferences() notify local ThingReferenceImpl-s that this ThingImpl has changed; incTick in RemoteThingImpl for RemoteThingReferenceImpl-s; would like 'default' visibility here, but must be declared 'public' because it is defined in the Thing interface
void	removeReference(ThingReference r) remove a ThingReference to this ThingImpl; must be local ThingReferenceImpl; called by ThingReference.setThing; would like 'default' visibility here, but must be declared 'public' because it is defined in the Thing interface

Methods inherited from class java.lang.Object

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

Constructor Detail

ThingImpl

public ThingImpl()

Method Detail

addReference

public void addReference(ThingReference r)
                  throws RemoteVisADException

Adds a listener for changes to this thing. The listener will be notified when this thing changes.

Specified by:

addReference in interface Thing

Parameters:

r - The listener for changes.

Throws:

RemoteVisADException - if the listener isn't a ThingReferenceImpl.

VisADException - if a VisAD failure occurs.

removeReference

public void removeReference(ThingReference r)
                     throws VisADException

remove a ThingReference to this ThingImpl; must be local ThingReferenceImpl; called by ThingReference.setThing; would like 'default' visibility here, but must be declared 'public' because it is defined in the Thing interface

Specified by:

removeReference in interface Thing

Throws:

VisADException

notifyReferences

public void notifyReferences()
                      throws VisADException,
                             RemoteException

notify local ThingReferenceImpl-s that this ThingImpl has changed; incTick in RemoteThingImpl for RemoteThingReferenceImpl-s; would like 'default' visibility here, but must be declared 'public' because it is defined in the Thing interface

Throws:

VisADException

RemoteException

clone

public Object clone()
             throws CloneNotSupportedException

Clones this instance. Information on the set of listeners to changes in this instance is not cloned, so -- following the general contract of the clone() method -- subclasses should not test for equality of the set of listeners in any equals(Object) method.

This implementation never throws CloneNotSupportedException.

Overrides:

clone in class Object

Returns:

A clone of this instance.

Throws:

CloneNotSupportedException - if cloning isn't supported.