uk.org.ogsadai.engine
Class StatusToStatusObserver

java.lang.Object
  |
  +--uk.org.ogsadai.engine.StatusToStatusObserver

All Implemented Interfaces:

java.util.Observer

public class StatusToStatusObserver

extends java.lang.Object

implements java.util.Observer

An Observer that updates the state of a destination ProcessingStatus object to match that of a source ProcessingStatus object whenever the source state changes. An instance should be attached to the source ProcessingStatus object.

Author:

The OGSA-DAI Project Team

Field Summary

private static java.lang.String	COPYRIGHT_NOTICE Copyright statement.
private ProcessingStatus	mDestinationStatus The processing status to update.

Constructor Summary

StatusToStatusObserver(ProcessingStatus destStatus)
Creates a new observer that will update the specified destination ProcessingStatus state whenever an invocation of the update method is received.

Method Summary

void	update(java.util.Observable sourceStatus, java.lang.Object argument)

Methods inherited from class java.lang.Object

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

Field Detail

COPYRIGHT_NOTICE

private static final java.lang.String COPYRIGHT_NOTICE

Copyright statement.

See Also:

Constant Field Values

mDestinationStatus

private final ProcessingStatus mDestinationStatus

The processing status to update.

Constructor Detail

StatusToStatusObserver

public StatusToStatusObserver(ProcessingStatus destStatus)

Creates a new observer that will update the specified destination ProcessingStatus state whenever an invocation of the update method is received.

Parameters:

destStatus - the destination ProcessingStatus object that will be updated whenever the source ProcessingStatus changes state

Throws:

java.lang.IllegalArgumentException - if destStatus is null.

Method Detail

update

public void update(java.util.Observable sourceStatus,
                   java.lang.Object argument)

Specified by:

update in interface java.util.Observer