public class GSTopicPublisherImpl extends GSMessageProducerImpl
javax.jms.TopicPublisher interface.
A client uses a GSTopicPublisherImpl object to publish messages on a topic. A
GSTopicPublisherImpl object is the publish-subscribe form of a message producer.
Normally, the Topic is specified when a GSTopicPublisherImpl is
created. In this case, an attempt to use the publish methods for an unidentified
GSTopicPublisherImpl will throw a java.lang.UnsupportedOperationException.
If the GSTopicPublisherImpl is created with an unidentified Topic,
an attempt to use the publish methods that assume that the Topic has
been identified will throw a java.lang.UnsupportedOperationException.
During the execution of its publish method, a message must not be changed by
other threads within the client. If the message is modified, the result of the
publish is undefined.
After publishing a message, a client may retain and modify it without affecting the message that has been published. The same message object may be published multiple times.
The following message headers are set as part of publishing a message:
JMSDestination, JMSDeliveryMode, JMSExpiration,
JMSPriority, JMSMessageID and JMSTimeStamp. When the
message is published, the values of these headers are ignored. After completion of the
publish, the headers hold the values specified by the method publishing the message.
It is possible for the publish method not to set JMSMessageID and
JMSTimeStamp if the setting of these headers is explicitly disabled by the
GSMessageProducerImpl.setDisableMessageID or GSMessageProducerImpl.setDisableMessageTimestamp
method.
Creating a GSMessageProducerImpl provides the same features as creating a
GSTopicPublisherImpl. A GSMessageProducerImpl object is recommended
when creating new code. The GSTopicPublisherImpl is provided to support existing
code.
Because GSTopicPublisherImpl inherits from GSMessageProducerImpl, it
inherits the send methods that are a part of the GSMessageProducerImpl
interface. Using the send methods will have the same effect as using the
publish methods: they are functionally the same.
m_closed, m_dest, m_session| Constructor and Description |
|---|
GSTopicPublisherImpl(GSSessionImpl sess,
GSTopicImpl topic,
IMessageConverter messageConverter)
Constructs a publisher.
|
close, getDeliveryMode, getDestination, getDisableMessageID, getDisableMessageTimestamp, getPriority, getProducerID, getQueue, getSession, getTimeToLive, getTopic, publish, publish, publish, publish, send, send, send, send, send, send, setDeliveryMode, setDisableMessageID, setDisableMessageTimestamp, setPriority, setProducerID, setTimeToLive, toStringpublic GSTopicPublisherImpl(GSSessionImpl sess, GSTopicImpl topic, IMessageConverter messageConverter) throws javax.jms.JMSException
sess - The session the publisher belongs to.topic - The topic the publisher publishs messages on.IllegalStateException - If the connection is broken.javax.jms.JMSException - If the creation fails for any other reason.Copyright © GigaSpaces.