Package com.cosylab.epics.caj.impl.requests

Class EventAddRequest

java.lang.Object

com.cosylab.epics.caj.impl.requests.AbstractCARequest

com.cosylab.epics.caj.impl.requests.EventAddRequest

All Implemented Interfaces:

NotifyResponseRequest, Request, ResponseRequest

public class EventAddRequest
extends AbstractCARequest
implements NotifyResponseRequest

CA event add request (creates a monitor on channel).

Version:

$id$

Author:

Matej Sekoranja

Field Summary

Fields

Modifier and Type	Field	Description
protected CAJChannel	channel	Channel.
protected CAJContext	context	Context.
protected CAJMonitor	monitor	Response callback listener.
protected byte	priority	Request send priority.
protected int	requestedDataCount	Requested data count.
protected int	requestedDataType	Requested data type.
protected int	subsid	Subscription ID given by the context when registered.

Fields inherited from class com.cosylab.epics.caj.impl.requests.AbstractCARequest

requestMessage, transport

Fields inherited from interface com.cosylab.epics.caj.impl.Request

DEFAULT_USER_PRIORITY, MAX_USER_PRIORITY, MIN_USER_PRIORITY, SEND_IMMEDIATELY_PRIORITY

Constructor Summary

Constructors

Constructor	Description
EventAddRequest(CAJChannel channel, CAJMonitor monitor, Transport transport, int sid, int dataType, int dataCount, int mask)

Method Summary

Modifier and Type	Method	Description
void	cancel()	Cancel response request (allways to be called to complete/destroy).
void	exception(int errorCode, String errorMessage)	Exception response notification.
int	getIOID()	Get I/O ID.
byte	getPriority()	Return default priority.
void	response(int status, short dataType, int dataCount, ByteBuffer dataPayloadBuffer)	Called everytime on monitor changed event.
void	resubscribeSubscription(Transport transport)	Resubscribe subscription.
void	submit()	Submit request to the corresponding transport.
void	timeout()	Timeout notification.
void	updateSubscription()	Update subscription.

Methods inherited from class com.cosylab.epics.caj.impl.requests.AbstractCARequest

alignBuffer, calculateAlignedSize, generateRequestMessage, getRequestMessage, insertCAHeader

Methods inherited from class java.lang.Object

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

Field Detail

context

protected final CAJContext context

Context.

subsid

protected final int subsid

Subscription ID given by the context when registered.

monitor

protected final CAJMonitor monitor

Response callback listener.

channel

protected final CAJChannel channel

Channel.

priority

protected byte priority

Request send priority.

requestedDataType

protected int requestedDataType

Requested data type.

requestedDataCount

protected int requestedDataCount

Requested data count.

Constructor Detail

EventAddRequest

public EventAddRequest(CAJChannel channel,
                       CAJMonitor monitor,
                       Transport transport,
                       int sid,
                       int dataType,
                       int dataCount,
                       int mask)

Parameters:

channel -

monitor -

transport -

sid -

dataType -

dataCount -

mask -

Method Detail

updateSubscription

public void updateSubscription()
                        throws IOException

Update subscription. NOTE: not sync.

Throws:

IOException

submit

public void submit()
            throws IOException

Submit request to the corresponding transport. This methods checks for null transport since it is allowed.

Specified by:

submit in interface Request

Overrides:

submit in class AbstractCARequest

Throws:

IOException

See Also:

AbstractCARequest.submit()

resubscribeSubscription

public void resubscribeSubscription(Transport transport)
                             throws IOException

Resubscribe subscription. NOTE: not sync.

Parameters:

transport - transport to be used.

Throws:

IOException

getIOID

public int getIOID()

Description copied from interface: ResponseRequest

Get I/O ID.

Specified by:

getIOID in interface ResponseRequest

Returns:

ioid

See Also:

ResponseRequest.getIOID()

response

public void response(int status,
                     short dataType,
                     int dataCount,
                     ByteBuffer dataPayloadBuffer)

Called everytime on monitor changed event.

Specified by:

response in interface NotifyResponseRequest

See Also:

NotifyResponseRequest.response(int, short, int, java.nio.ByteBuffer)

cancel

public void cancel()

Description copied from interface: ResponseRequest

Cancel response request (allways to be called to complete/destroy).

Specified by:

cancel in interface ResponseRequest

See Also:

ResponseRequest.cancel()

timeout

public void timeout()

Description copied from interface: ResponseRequest

Timeout notification.

Specified by:

timeout in interface ResponseRequest

See Also:

ResponseRequest.timeout()

exception

public void exception(int errorCode,
                      String errorMessage)

Description copied from interface: ResponseRequest

Exception response notification.

Specified by:

exception in interface ResponseRequest

Parameters:

errorCode - exception code.

errorMessage - received detailed message.

See Also:

ResponseRequest.exception(int, java.lang.String)

getPriority

public byte getPriority()

Description copied from class: AbstractCARequest

Return default priority.

Specified by:

getPriority in interface Request

Overrides:

getPriority in class AbstractCARequest

Returns:

request priority.

See Also:

Request.getPriority()