visad
Class DataReferenceImpl

java.lang.Object
  visad.ThingReferenceImpl
      visad.DataReferenceImpl

All Implemented Interfaces:

DataReference, ThingReference

public class DataReferenceImpl
extends ThingReferenceImpl
implements DataReference

DataReferenceImpl is a local implementation of DataReference.

DataReferenceImpl is not Serializable and should not be copied between JVMs.

Constructor Summary

DataReferenceImpl(String name)
Constructs from a name for the instance.

Method Summary

boolean	equals(Object obj) Indicates whether or not this instance is equal to an object
Data	getData()
MathType	getType() this is more efficient than getData().getType() for RemoteDataReferences
void	setData(Data d) Sets the Data object to which this instance refers.
String	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 Detail

DataReferenceImpl

public DataReferenceImpl(String name)
                  throws VisADException

Constructs from a name for the instance.

Parameters:

name - The name for this instance.

Throws:

VisADException - if the name is null.

Method Detail

getData

public Data getData()

Specified by:

getData in interface DataReference

Returns:

referenced Data object, or null if none

Throws:

VisADException - a VisAD error occurred

RemoteException - an RMI error occurred

getType

public MathType getType()
                 throws VisADException,
                        RemoteException

this is more efficient than getData().getType() for RemoteDataReferences

Specified by:

getType in interface DataReference

Returns:

the MathType of referenced Data object, or null if none;

Throws:

VisADException - a VisAD error occurred

RemoteException - an RMI error occurred

setData

public void setData(Data d)
             throws VisADException,
                    RemoteException

Sets the Data object to which this instance refers.

Specified by:

setData in interface DataReference

Parameters:

d - The data object.

Throws:

ReferenceException - if the data object is null.

RemoteVisADException - if the data object is a RemoteData.

VisADException - a VisAD error occurred

RemoteException - an RMI error occurred

equals

public boolean equals(Object obj)

Indicates whether or not this instance is equal to an object

Overrides:

equals in class ThingReferenceImpl

Parameters:

obj - the object in question.

Returns:

true if and only if this instance equals o.

toString

public String toString()

Overrides:

toString in class ThingReferenceImpl

Returns:

String representation of this