org.dmd.dmp.server.servlet.base

Class GetRequestProcessor

java.lang.Object

org.dmd.dmp.server.servlet.base.GetRequestProcessor

All Implemented Interfaces:

DmpEventHandlerIF

public class GetRequestProcessor
extends Object
implements DmpEventHandlerIF

The GetRequestProcessor is designed to asynchronously return a set of objects from the cache in such a way that, if events are requested for the objects, the client's view of the objects will always be in sync with the state of the objects in the cache.

Constructor Summary

Constructors

Constructor and Description
GetRequestProcessor(org.dmd.dmp.server.DmpPipeIF pipe, CacheRegistration dcr)

Method Summary

Modifier and Type	Method and Description
void	handleEvent(org.dmd.dmp.server.extended.DMPEvent event)
void	processRequest(org.dmd.dmp.server.extended.DenotifyRequest request)
void	processRequest(org.dmd.dmp.server.extended.GetRequest request) Processes a GetRequest.

Methods inherited from class java.lang.Object

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

Constructor Detail

GetRequestProcessor

public GetRequestProcessor(org.dmd.dmp.server.DmpPipeIF pipe,
                           CacheRegistration dcr)

Method Detail

processRequest

public void processRequest(org.dmd.dmp.server.extended.GetRequest request)

Processes a GetRequest. The two main forms of requests handled at present are requests for a particular object (the request has a target value) and requests for a set of objects of the same class i.e. an index of a particular class.

The concept of object retrieval is also tied to event notification, or can be if you want to be notified of changes to the objects (or slices thereof) that you have requested. If the registerForEvents attribute is set to true, the client will be registered to receive event notifications of any subsequent changes to the objects that were retrieved.

If the request doesn't conform to the allowed formats, an error response is sent.

Parameters:

request - the request to be processed.

processRequest

public void processRequest(org.dmd.dmp.server.extended.DenotifyRequest request)

handleEvent

public void handleEvent(org.dmd.dmp.server.extended.DMPEvent event)

Specified by:

handleEvent in interface DmpEventHandlerIF