Rio Project 4.2 API Documentation

org.rioproject.system
Class ComputeResourceObserver

java.lang.Object
  org.rioproject.system.ComputeResourceObserver

All Implemented Interfaces:

Observer

public class ComputeResourceObserver
extends Object
implements Observer

The ComputeResourceObserver observes the ComputeResource object associated with a ServiceBean. It provides the following function:

As the ComputeResource object changes, it's overall utilization will be compared to the maximum utilization that may have been specified by the ServiceBean. If that cost exceeds the maximum utilization specified, then a SLAThresholdEvent will be fired

Author:

Dennis Reedy

Constructor Summary

ComputeResourceObserver(ComputeResource computeResource, ServiceBeanContext context, EventHandler eventHandler)
Construct a new ComputeResourceObserver

Method Summary

void	disconnect() Inform the ComputeResource object that this class is no longer interested in updates
void	setIgnore(boolean ignore) Set the ignore property, telling the ComputeResourceObserver to ignore any changes from the ComputeResource
void	setSource(Object source) Set the event source
void	update(Observable o, Object arg) The ComputeResource has changed

Methods inherited from class java.lang.Object

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

Constructor Detail

ComputeResourceObserver

public ComputeResourceObserver(ComputeResource computeResource,
                               ServiceBeanContext context,
                               EventHandler eventHandler)

Construct a new ComputeResourceObserver

Parameters:

computeResource - The ComputeResource to observe

context - The ServiceBeanContext for the service bean

eventHandler - The EventHandler for firing SLAThresholdEvents

Method Detail

disconnect

public void disconnect()

Inform the ComputeResource object that this class is no longer interested in updates

setSource

public void setSource(Object source)

Set the event source

Parameters:

source - The event source

setIgnore

public void setIgnore(boolean ignore)

Set the ignore property, telling the ComputeResourceObserver to ignore any changes from the ComputeResource

Parameters:

ignore - If true, ignore changes to the ComputeResource

update

public void update(Observable o,
                   Object arg)

The ComputeResource has changed

Specified by:

update in interface Observer

Parameters:

o - The Observable object

arg - The argument