com.eliad.model
Class NullSpanModel

java.lang.Object
  |
  +--com.eliad.model.NullSpanModel

public class NullSpanModel

extends java.lang.Object

implements SpanModel

This is a stricly empty span model.

Version:

1.0 00/04/08

Author:

Patrick Mérissert-Coffinières

Method Summary

void	addSpanModelListener(SpanModelListener l) Adds a listener to the list that's notified each time a change to the span model occurs.
static NullSpanModel	getSharedInstance() Provides a singleton instance.
void	removeSpanModelListener(SpanModelListener l) Removes a listener from the list that's notified each time a change to the span model occurs.

Methods inherited from class java.lang.Object

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

Method Detail

getSharedInstance

public static NullSpanModel getSharedInstance()

Provides a singleton instance.

addSpanModelListener

public void addSpanModelListener(SpanModelListener l)

Adds a listener to the list that's notified each time a change to the span model occurs. Since no change will ever occur, subscribers will not be recorded.

Specified by:

addSpanModelListener in interface SpanModel

Parameters:

l - the SpanModelListener

removeSpanModelListener

public void removeSpanModelListener(SpanModelListener l)

Removes a listener from the list that's notified each time a change to the span model occurs. Since no change will ever occur, subscribers will not be recorded.

Specified by:

removeSpanModelListener in interface SpanModel

Parameters:

l - the SpanModelListener