Rio Project 4.2 API Documentation

org.rioproject.monitor
Class ResourceCostSelector

java.lang.Object
  org.rioproject.monitor.ServiceResourceSelector
      org.rioproject.monitor.ResourceCostSelector

All Implemented Interfaces:

LeaseListener

public class ResourceCostSelector
extends ServiceResourceSelector

This class provides an implementation of a ServiceResourceSelector which manages a TreeSet of ServiceResource objects which reflect the resources being leased. This class organizes list items in a sorted collection. The natural order of the collection will be used to obtain a ServiceResource element if it can accept the resources capabilities.

This class must be registered with the LandlordLessor, and will be notified as resources are lease, updated or removed

Author:

Dennis Reedy

See Also:

LandlordLessor, ResourceLessor, ComputeResource, ResourceCapability

Nested Class Summary

static class

ResourceCostSelector.CostComparator The CostComparator is a Comparator which sorts the Collection based on the Comparable implementation of the ResourceCapability

Field Summary

Fields inherited from class org.rioproject.monitor.ServiceResourceSelector

collection, collectionLock, landlord

Constructor Summary

ResourceCostSelector()
Construct a ResourceCostSelector

Method Summary

void	serviceResourceSelected(ServiceResource svcResource) This method allows concrete implementations of this class to order the Collection of ServiceResource instances based on a ServiceResource being selected
protected void	update(LeasedResource resource) Override parent's update method to provide proper TreeSet behavior

Methods inherited from class org.rioproject.monitor.ServiceResourceSelector

add, expired, getServiceResource, getServiceResource, getServiceResources, register, remove, removed, renewed, selectServiceResource, setLandlordLessor

Methods inherited from class java.lang.Object

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

Constructor Detail

ResourceCostSelector

public ResourceCostSelector()

Construct a ResourceCostSelector

Method Detail

serviceResourceSelected

public void serviceResourceSelected(ServiceResource svcResource)

Description copied from class: ServiceResourceSelector

This method allows concrete implementations of this class to order the Collection of ServiceResource instances based on a ServiceResource being selected

Specified by:

serviceResourceSelected in class ServiceResourceSelector

Parameters:

svcResource - A ServiceResource instance selected for provisioning a ServiceBean

See Also:

ServiceResourceSelector.serviceResourceSelected(org.rioproject.resources.servicecore.ServiceResource)

update

protected void update(LeasedResource resource)

Override parent's update method to provide proper TreeSet behavior

Overrides:

update in class ServiceResourceSelector

Parameters:

resource - The LeasedResource