Package com.swiftmq.swiftlet.queue

Class QueuePullTransaction

java.lang.Object

com.swiftmq.swiftlet.queue.QueueTransaction

com.swiftmq.swiftlet.queue.QueuePullTransaction

All Implemented Interfaces:

Recyclable

public class QueuePullTransaction
extends QueueTransaction

Transaction to pull messages from a queue. It is created by a QueueReceiver

Author:

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

See Also:

• QueueReceiver.createTransaction(boolean)

Constructor Summary

Constructors

Constructor	Description
QueuePullTransaction()

Method Summary

Modifier and Type	Method	Description
void	acknowledgeMessage(MessageIndex messageIndex)	Acknowledge a single message of this transaction
void	acknowledgeMessage(MessageIndex messageIndex, AsyncCompletionCallback callback)	Async acknowledge a single message of this transaction and returns its size as the result of the callback.
void	acknowledgeMessages(List messageIndexList, AsyncCompletionCallback callback)	Async acknowledge a list of messages of this transaction and returns their size as the result of the callback.
MessageEntry	getExpiredMessage(long timeout)	Get an expired message from the queue but wait only a specific period of time.
MessageEntry	getMessage()	Get a message from the queue.
MessageEntry	getMessage(long timeout)	Get a message from the queue but wait only a specific period of time.
MessageEntry	getMessage(long timeout, Selector selector)	Get a message from the queue that matches the selector but wait only a specific period of time.
MessageEntry	getMessage(Selector selector)	Get a message from the queue that matches the selector.
void	moveToTransaction(MessageIndex messageIndex)	Moves a message with the given message index to this transaction.
void	moveToTransaction(MessageIndex messageIndex, QueuePullTransaction sourceTransaction)	Moves a message with the given message index from the source to this transaction.
long	moveToTransactionReturnSize(MessageIndex messageIndex)	Moves a message with the given message index to this transaction and returns its size.
long	moveToTransactionReturnSize(MessageIndex messageIndex, QueuePullTransaction sourceTransaction)	Moves a message with the given message index from the source to this transaction and returns its size.
void	registerMessageProcessor(MessageProcessor messageProcessor)	Registers a message processor.
void	removeMessages(List<MessageIndex> messageIndexes)	Remove messages from a queue
void	rollback()	Rollback of the transaction.
void	rollback(XidImpl globalTransactionId, boolean setRedelivered)	Rolls back the transaction with the given transaction id, eventually prepared under a global transaction id.
void	unregisterMessageProcessor(MessageProcessor messageProcessor)	Unregisters a message processor.

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

commit, commit, getAbstractQueue, getCompositeStoreTransaction, getQueue, getQueueName, getRecycleIndex, isClosed, isDoRollbackOnClose, isPrepared, isQueueRunning, isTemporaryQueue, lockQueue, prepare, reset, setCompositeStoreTransaction, setDoRollbackOnClose, setRecycleIndex, unlockQueue, unmarkAsyncActive, verifyTransactionState

Methods inherited from class java.lang.Object

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

Constructor Details

QueuePullTransaction

public QueuePullTransaction()

Method Details

getMessage

public MessageEntry getMessage()
                        throws QueueTransactionClosedException,
QueueException

Get a message from the queue.

Returns:

The message

Throws:

QueueTransactionClosedException - if the transaction was closed

QueueException - thrown by the queue

getMessage

public MessageEntry getMessage(Selector selector)
                        throws QueueTransactionClosedException,
QueueException

Get a message from the queue that matches the selector.

Parameters:

selector - A message selector

Returns:

The message

Throws:

QueueTransactionClosedException - if the transaction was closed

QueueException - thrown by the queue

getMessage

public MessageEntry getMessage(long timeout)
                        throws QueueTransactionClosedException,
QueueException,
QueueTimeoutException

Get a message from the queue but wait only a specific period of time.

Parameters:

timeout - a timeout in ms

Returns:

The message

Throws:

QueueTransactionClosedException - if the transaction was closed

QueueException - thrown by the queue

QueueTimeoutException - if a timeout occurs

getExpiredMessage

public MessageEntry getExpiredMessage(long timeout)
                               throws QueueTransactionClosedException,
QueueException,
QueueTimeoutException

Get an expired message from the queue but wait only a specific period of time.

Parameters:

timeout - a timeout in ms

Returns:

The message

Throws:

QueueTransactionClosedException - if the transaction was closed

QueueException - thrown by the queue

QueueTimeoutException - if a timeout occurs

getMessage

public MessageEntry getMessage(long timeout,
 Selector selector)
                        throws QueueTransactionClosedException,
QueueException,
QueueTimeoutException

Get a message from the queue that matches the selector but wait only a specific period of time.

Parameters:

timeout - a timeout in ms

selector - a message selector

Returns:

The message

Throws:

QueueTransactionClosedException - if the transaction was closed

QueueException - thrown by the queue

QueueTimeoutException - if a timeout occurs

removeMessages

public void removeMessages(List<MessageIndex> messageIndexes)
                    throws QueueTransactionClosedException,
QueueException

Remove messages from a queue

Parameters:

messageIndexes - List of MessageIndexes to remove

Throws:

QueueException - on error

QueueTransactionClosedException

registerMessageProcessor

public void registerMessageProcessor(MessageProcessor messageProcessor)
                              throws QueueTransactionClosedException,
QueueException

Registers a message processor.

Parameters:

messageProcessor - message processor.

Throws:

QueueTransactionClosedException - if the transaction was closed.

QueueException - on error.

unregisterMessageProcessor

public void unregisterMessageProcessor(MessageProcessor messageProcessor)
                                throws QueueTransactionClosedException,
QueueException

Unregisters a message processor.

Parameters:

messageProcessor - message processor.

Throws:

QueueTransactionClosedException - if the transaction was closed.

QueueException - on error.

acknowledgeMessage

public void acknowledgeMessage(MessageIndex messageIndex)
                        throws QueueTransactionClosedException,
QueueException

Acknowledge a single message of this transaction

Parameters:

messageIndex - The message index

Throws:

QueueException - thrown by the queue

QueueTransactionClosedException

acknowledgeMessage

public void acknowledgeMessage(MessageIndex messageIndex,
 AsyncCompletionCallback callback)
                        throws QueueTransactionClosedException

Async acknowledge a single message of this transaction and returns its size as the result of the callback.

Parameters:

messageIndex - The message index

callback - async completion callback

Throws:

QueueException - thrown by the queue

QueueTransactionClosedException

acknowledgeMessages

public void acknowledgeMessages(List messageIndexList,
 AsyncCompletionCallback callback)
                         throws QueueTransactionClosedException

Async acknowledge a list of messages of this transaction and returns their size as the result of the callback.

Parameters:

messageIndexList - A list of message indexes

callback - async completion callback

Throws:

QueueException - thrown by the queue

QueueTransactionClosedException

moveToTransaction

public void moveToTransaction(MessageIndex messageIndex,
 QueuePullTransaction sourceTransaction)
                       throws QueueTransactionClosedException,
QueueException

Moves a message with the given message index from the source to this transaction.

Parameters:

messageIndex - message index.

sourceTransaction - source transaction.

Throws:

QueueTransactionClosedException - if the transaction was closed.

QueueException - on error.

moveToTransactionReturnSize

public long moveToTransactionReturnSize(MessageIndex messageIndex,
 QueuePullTransaction sourceTransaction)
                                 throws QueueTransactionClosedException,
QueueException

Moves a message with the given message index from the source to this transaction and returns its size.

Parameters:

messageIndex - message index.

sourceTransaction - source transaction.

Returns:

size of the corresponding message in bytes

Throws:

QueueTransactionClosedException - if the transaction was closed.

QueueException - on error.

moveToTransaction

public void moveToTransaction(MessageIndex messageIndex)
                       throws QueueTransactionClosedException,
QueueException

Moves a message with the given message index to this transaction. The source transaction is determined by the message index.

Parameters:

messageIndex - message index.

Throws:

QueueTransactionClosedException - if the transaction was closed.

QueueException - on error.

moveToTransactionReturnSize

public long moveToTransactionReturnSize(MessageIndex messageIndex)
                                 throws QueueTransactionClosedException,
QueueException

Moves a message with the given message index to this transaction and returns its size. The source transaction is determined by the message index.

Parameters:

messageIndex - message index.

Returns:

size of the corresponding message in bytes

Throws:

QueueTransactionClosedException - if the transaction was closed.

QueueException - on error.

rollback

public void rollback(XidImpl globalTransactionId,
 boolean setRedelivered)
              throws QueueException,
QueueTransactionClosedException

Rolls back the transaction with the given transaction id, eventually prepared under a global transaction id. If the flag setRedelivered is set then the JMS properties for redelivery and delivery count of messages pulled within this transaction are updated.

Specified by:

rollback in class QueueTransaction

Parameters:

globalTransactionId - global transaction id

setRedelivered - specifies JMS redelivery setting

Throws:

QueueException - on error

QueueTransactionClosedException

rollback

public void rollback()
              throws QueueException,
QueueTransactionClosedException

Rollback of the transaction.

Specified by:

rollback in class QueueTransaction

Throws:

QueueException - thrown by the queue

QueueTransactionClosedException - if the transaction was closed