Package org.epics.pvaccess.client.impl.remote

Class ChannelProcessRequestImpl

java.lang.Object

org.epics.pvaccess.client.impl.remote.BaseRequestImpl

org.epics.pvaccess.client.impl.remote.ChannelProcessRequestImpl

All Implemented Interfaces:

ChannelProcess, ChannelRequest, Lockable, DataResponse, ResponseRequest, SubscriptionRequest, TransportSender, org.epics.pvdata.misc.Destroyable

public class ChannelProcessRequestImpl
extends BaseRequestImpl
implements ChannelProcess

PVA process request.

Version:

$Id$

Author:

Matej Sekoranja

Field Summary

Fields

Modifier and Type	Field	Description
protected ChannelProcessRequester	callback	Response callback listener.

Fields inherited from class org.epics.pvaccess.client.impl.remote.BaseRequestImpl

channel, channelDestroyed, channelNotConnected, context, destroyed, destroyedStatus, invalidBitSetLengthStatus, invalidPutArrayStatus, invalidPutStructureStatus, ioid, lastRequest, lock, NULL_REQUEST, okStatus, otherRequestPendingStatus, pendingRequest, PURE_CANCEL_REQUEST, PURE_DESTROY_REQUEST, pvDataCreate, pvRequest, remotelyDestroyed, requester, statusCreate, subscribed

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	ChannelProcessRequestImpl(ChannelImpl channel, ChannelProcessRequester callback, org.epics.pvdata.pv.PVStructure pvRequest)

Method Summary

Modifier and Type	Method	Description
protected void	activate()
static ChannelProcessRequestImpl	create(ChannelImpl channel, ChannelProcessRequester callback, org.epics.pvdata.pv.PVStructure pvRequest)
void	process()	Issue a process request.
void	send(ByteBuffer buffer, TransportSendControl control)	Called by transport.

Methods inherited from class org.epics.pvaccess.client.impl.remote.BaseRequestImpl

cancel, createBitSetFor, destroy, destroy, getChannel, getIOID, getPendingRequest, getRequester, lastRequest, lock, reportStatus, response, resubscribeSubscription, reuseOrCreatePVField, startRequest, stopRequest, timeout, unlock, updateSubscription

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.epics.pvaccess.client.ChannelRequest

cancel, getChannel, lastRequest

Methods inherited from interface org.epics.pvdata.misc.Destroyable

destroy

Methods inherited from interface org.epics.pvaccess.client.Lockable

lock, unlock

Field Detail

callback

protected final ChannelProcessRequester callback

Response callback listener.

Constructor Detail

ChannelProcessRequestImpl

protected ChannelProcessRequestImpl(ChannelImpl channel,
                                    ChannelProcessRequester callback,
                                    org.epics.pvdata.pv.PVStructure pvRequest)

Method Detail

create

public static ChannelProcessRequestImpl create(ChannelImpl channel,
                                               ChannelProcessRequester callback,
                                               org.epics.pvdata.pv.PVStructure pvRequest)

activate

protected void activate()

Overrides:

activate in class BaseRequestImpl

send

public void send(ByteBuffer buffer,
                 TransportSendControl control)

Description copied from interface: TransportSender

Called by transport. By this call transport gives callee ownership over the buffer. Calls on TransportSendControl instance must be made from calling thread. Moreover, ownership is valid only for the time of call of this method. NOTE: these limitations allow efficient implementation.

Specified by:

send in interface TransportSender

Overrides:

send in class BaseRequestImpl

Parameters:

buffer - buffer to send.

control - transport send control instance.

process

public void process()

Description copied from interface: ChannelProcess

Issue a process request. Completion status is reported by calling ChannelProcessRequester.processDone() callback.

Specified by:

process in interface ChannelProcess