uk.org.ogsadai.engine
Class ObservableStatus

java.lang.Object
  |
  +--java.util.Observable
        |
        +--uk.org.ogsadai.engine.ObservableStatus

public class ObservableStatus

extends java.util.Observable

This is an Observable wrapper around a Status field. Observer implementations can be registered and they will each be updated every time the status is changed using the setStatus method.

Author:

The OGSA-DAI Project Team

Field Summary

private static java.lang.String	COPYRIGHT_NOTICE Copyright statement.
private static DAILogger	LOG Logger object for logging in this class.
private java.lang.String	mName User-friendly name used in logging messages.
private Status	mStatus The status field that is being observed.

Fields inherited from class java.util.Observable

Constructor Summary

ObservableStatus(Status status)
Constructs an ObservableStatus class with the specified initial status and an automatically generated name.

ObservableStatus(java.lang.String name, Status status)
Constructs an ObservableStatus class with the specified initial status and name.

Method Summary

Status	getStatus() Gets the current status.
void	setStatus(Status status) Sets the status and notifies any observers of the change.

Methods inherited from class java.util.Observable

addObserver, clearChanged, countObservers, deleteObserver, deleteObservers, hasChanged, notifyObservers, notifyObservers, setChanged

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

LOG

private static DAILogger LOG

Logger object for logging in this class.

mStatus

private Status mStatus

The status field that is being observed.

mName

private final java.lang.String mName

User-friendly name used in logging messages.

Constructor Detail

ObservableStatus

public ObservableStatus(Status status)

Constructs an ObservableStatus class with the specified initial status and an automatically generated name. The name will simply be used in logging messages.

Parameters:

status - The initial Status.

ObservableStatus

public ObservableStatus(java.lang.String name,
                        Status status)

Constructs an ObservableStatus class with the specified initial status and name.

Parameters:

status - The initial Status.

name - The name for the ObservableStatus. This will simply be used in logging messages.

Method Detail

getStatus

public final Status getStatus()

Gets the current status.

Returns:

a Status reference.

setStatus

public final void setStatus(Status status)

Sets the status and notifies any observers of the change.

Parameters:

status - The new Status. This will be passed to the notifyObservers method.