cern.cmw.rda.client
Class SetRequest

java.lang.Object
  cern.cmw.rda.client.Request
      cern.cmw.rda.client.SetRequest

public class SetRequest
extends Request

Represents a request to execute a set operation on a device. A SetRequest object is created as a result of the set method of the DeviceHandle class. The call sends the request to a device server, and returns it to the caller in the PENDING state.

The RDA runtime waits for a reply to each pending SetRequest, but no longer then specified by the cmw.rda.timeout property. The request will leave the PENDING state and its associated ReplyHandler will be called if one of the following events happens:

• reply received
  Depending on the reply type, one the following methods will be called:
  • ReplyHandler.done(SetRequest)
    on a normal reply that indicates successful completion of the operation in the device server
  • ReplyHandler.handleException(Request,BadParameter)
ReplyHandler.handleException(Request,IOError)
ReplyHandler.handleException(Request,InternalException)
    on an error reply that contains the error info
• connection lost to the server
  ReplyHandler.handleException(Request,NoConnection) will be called.
• timeout
  ReplyHandler.handleException(Request,TimeOut) will be called.

A SetRequest object will be deleted (garbage collected) if it is not PENDING and unreferenced in the user code.

Method Summary

Data	getValue() Returns the value specified in the set call that created this request.

Methods inherited from class cern.cmw.rda.client.Request

getContext, getCycleSelector, getDeviceHandle, getPropertyName, isPending

Methods inherited from class java.lang.Object

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

Method Detail

getValue

public Data getValue()

Returns the value specified in the set call that created this request.