com.j_spaces.jms
Class GSQueueReceiverImpl

java.lang.Object
  com.j_spaces.jms.GSMessageConsumerImpl
      com.j_spaces.jms.GSQueueReceiverImpl

All Implemented Interfaces:

MessageConsumer, QueueReceiver, TopicSubscriber

public class GSQueueReceiverImpl
extends GSMessageConsumerImpl

GigaSpaces implementation of the javax.jms.QueueReceiver interface. A client uses a QueueReceiver object to receive messages that have been delivered to a queue.

Although it is possible to have multiple QueueReceivers for the same queue, the JMS API does not define how messages are distributed between the QueueReceivers. The GigaSpaces API does not support multiple QueueReceivers for the same queue.

If a QueueReceiver specifies a message selector, the messages that are not selected remain on the queue. By definition, a message selector allows a QueueReceiver to skip messages. This means that when the skipped messages are eventually read, the total ordering of the reads does not retain the partial order defined by each message producer. Only QueueReceivers without a message selector will read messages in message producer order.

Creating a MessageConsumer provides the same features as creating a QueueReceiver. A MessageConsumer object is recommended for creating new code. The QueueReceiver is provided to support existing code.

See Also:

Session.createConsumer(Destination, String), Session.createConsumer(Destination), QueueSession.createReceiver(Queue, String), QueueSession.createReceiver(Queue), MessageConsumer

Field Summary

Fields inherited from class com.j_spaces.jms.GSMessageConsumerImpl

m_durableSubscriptionName

Constructor Summary

GSQueueReceiverImpl(GSSessionImpl sess, GSQueueImpl queue, String consumerKey, String selector, com.j_spaces.jdbc.ParserManager pManager)

Method Summary

Methods inherited from class com.j_spaces.jms.GSMessageConsumerImpl

close, getConsumerID, getDestination, getMessageListener, getMessageSelector, getName, getNoLocal, getQueue, getTopic, isClosed, isDurableSubscriber, receive, receive, receiveNoWait, setMessageListener, toString

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

GSQueueReceiverImpl

public GSQueueReceiverImpl(GSSessionImpl sess,
                           GSQueueImpl queue,
                           String consumerKey,
                           String selector,
                           com.j_spaces.jdbc.ParserManager pManager)
                    throws JMSException

Parameters:

sess -

queue -

consumerKey -

selector -

pManager - ParserManager used for the selector support

Throws:

JMSException