Package com.swiftmq.swiftlet.queue

Class QueueReceiver

java.lang.Object

com.swiftmq.swiftlet.queue.event.QueueManagerAdapter

com.swiftmq.swiftlet.queue.QueueHandler

com.swiftmq.swiftlet.queue.QueueTransactionHandler

com.swiftmq.swiftlet.queue.QueueReceiver

All Implemented Interfaces:

QueueManagerListener, EventListener

public class QueueReceiver
extends QueueTransactionHandler

A QueueReceiver is a QueueTransactionHandler that serves as a factory for QueuePullTransactions. Pulling messages from the underlying queue goes via QueuePullTransactions. QueueReceivers are created by the QueueManager.

Author:

IIT GmbH, Bremen/Germany, Copyright (c) 2000-2002, All Rights Reserved

See Also:

• QueueManager.createQueueReceiver(java.lang.String, com.swiftmq.swiftlet.auth.ActiveLogin, com.swiftmq.swiftlet.queue.Selector)

Constructor Summary

Constructors

Constructor	Description
QueueReceiver(ActiveQueue activeQueue, EntityList receiverEntityList)	Creates a new QueueReceiver
QueueReceiver(ActiveQueue activeQueue, EntityList receiverEntityList, Selector selector)	Creates a new QueueReceiver

Method Summary

Modifier and Type	Method	Description
void	close()	Close the queue receiver
QueuePullTransaction	createTransaction(boolean setRedeliveredOnRollback)	Creates a new QueuePullTransaction.
long	getReceiverId()
void	setReceiverId(long receiverId)

Methods inherited from class com.swiftmq.swiftlet.queue.QueueHandler

getNumberQueueMessages, getQueueName, isClosed, queueStopInitiated, verifyQueueHandlerState

Methods inherited from class com.swiftmq.swiftlet.queue.event.QueueManagerAdapter

queueStarted, queueStartInitiated, queueStopped

Methods inherited from class java.lang.Object

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

Constructor Details

QueueReceiver

public QueueReceiver(ActiveQueue activeQueue,
 EntityList receiverEntityList)

Creates a new QueueReceiver

Parameters:

activeQueue - the active queue

QueueReceiver

public QueueReceiver(ActiveQueue activeQueue,
 EntityList receiverEntityList,
 Selector selector)

Creates a new QueueReceiver

Parameters:

activeQueue - the active queue

Method Details

getReceiverId

public long getReceiverId()

setReceiverId

public void setReceiverId(long receiverId)

createTransaction

public QueuePullTransaction createTransaction(boolean setRedeliveredOnRollback)
                                       throws QueueException,
QueueHandlerClosedException

Creates a new QueuePullTransaction. The flag setRedeliveredOnRollback specifies whether redelivery setting for all pulled messages should be processed or not. If true then all messages pulled whithin this transaction will be incremented in there delivery count header field and a redelivered flag will be set if the message is pulled again.

Parameters:

setRedeliveredOnRollback - flag

Returns:

QueuePullTransaction

Throws:

QueueException - thrown by the queue

QueueHandlerClosedException - if the handler is closed

close

public void close()
           throws QueueException,
QueueHandlerClosedException

Close the queue receiver

Overrides:

close in class QueueTransactionHandler

Throws:

QueueException - thrown by the queue

QueueHandlerClosedException - if the browser is already closed