LeasedListManager (Rio Project 4.2 API)

Rio Project 4.2 API Documentation

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org.rioproject.resources.servicecore
Class LeasedListManager

java.lang.Object
  org.rioproject.resources.servicecore.LeasedListManager

All Implemented Interfaces:: LeaseListener

public class LeasedListManager
extends Object
implements LeaseListener
extends Object
implements LeaseListener

This class provides an implementation of a LeaseListener which uses manages a LinkedList of ServiceResource objects which reflect the resources being leased. This class must be registered with the LandlordLessor, and will be notified as resources are leased, updated or removed

Author:: Dennis Reedy
See Also:: LandlordLessor, ResourceLessor

Constructor Summary
`LeasedListManager()`

Method Summary
`void`	`expired(LeasedResource resource)` Notifies the manager of a lease expiration
`ServiceResource`	`getNext()` Returns the next `ServiceResource` in the list of `ServiceResource` elements that have been leased.
`ServiceResource`	`getPrevious()` Returns the previous `ServiceResource` in the list of `ServiceResource` elements that have been leased.
`ServiceResource[]`	`getServiceResources()` This method returns a snapshot of the ServiceResource objects in the LinkedList of resources
`void`	`putLast(ServiceResource sr)` This method will move the ServiceResource from wherever it is in the list to the last element in the list
`void`	`register(LeasedResource resource)` Notifies the manager of a new lease being created.
`void`	`removed(LeasedResource resource)` Notifies the manager of a lease removal
`void`	`removeResource(ServiceResource resource)` Removes a ServiceResource from the managed Collection of ServiceResource elements
`void`	`renewed(LeasedResource resource)` Notifies the manager of a lease being renewed.

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Constructor Detail

LeasedListManager

public LeasedListManager()

Method Detail

getServiceResources

public ServiceResource[] getServiceResources()

This method returns a snapshot of the ServiceResource objects in the LinkedList of resources

Returns:: An array of ServiceResource objects

removeResource

public void removeResource(ServiceResource resource)

Removes a ServiceResource from the managed Collection of ServiceResource elements

Parameters:: resource - The ServiceResource to remove

putLast

public void putLast(ServiceResource sr)

This method will move the ServiceResource from wherever it is in the list to the last element in the list

Parameters:: sr - The ServiceResource to move

getNext

public ServiceResource getNext()
                        throws NoSuchElementException

Returns the next ServiceResource in the list of ServiceResource elements that have been leased. The behavior of this method is simply to remove the first element from the LinkedList and append it to the end of the list.

Use of this method provides access to the list of ServiceResource elements traversing in a forward direction.

If there is only one element in the list, the that element will be returned each time this method is called.

Returns:: ServiceResource
Throws:: NoSuchElementException - if the iteration is empty

getPrevious

public ServiceResource getPrevious()
                            throws NoSuchElementException

Returns the previous ServiceResource in the list of ServiceResource elements that have been leased. The behavior of this method is simply to remove the last element from the LinkedList and append it to the beginning of the list.