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

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.

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.

update

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

Specified by:

update in interface java.util.Observer