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java.lang.Objectorg.activemq.jndi.JNDIBaseStorable
org.activemq.message.ActiveMQDestination
org.activemq.message.ActiveMQTopic
A Topic object encapsulates a provider-specific topic name.
It is the way a client specifies the identity of a topic to JMS API methods.
For those methods that use a Destination as a parameter, a
Topic object may used as an argument . For
example, a Topic can be used to create a MessageConsumer
and a MessageProducer
by calling:
Session.CreateConsumer(Destination destination)
Session.CreateProducer(Destination destination)
Many publish/subscribe (pub/sub) providers group topics into hierarchies
and provide various options for subscribing to parts of the hierarchy. The
JMS API places no restriction on what a Topic object
represents. It may be a leaf in a topic hierarchy, or it may be a larger
part of the hierarchy.
The organization of topics and the granularity of subscriptions to
them is an important part of a pub/sub application's architecture. The JMS
API
does not specify a policy for how this should be done. If an application
takes advantage of a provider-specific topic-grouping mechanism, it
should document this. If the application is installed using a different
provider, it is the job of the administrator to construct an equivalent
topic architecture and create equivalent Topic objects.
Session.createConsumer(javax.jms.Destination),
Session.createProducer(javax.jms.Destination),
TopicSession.createTopic(String),
Serialized Form| Field Summary |
| Fields inherited from class org.activemq.message.ActiveMQDestination |
ACTIVEMQ_QUEUE, ACTIVEMQ_TEMPORARY_QUEUE, ACTIVEMQ_TEMPORARY_TOPIC, ACTIVEMQ_TOPIC, ADVISORY_PREFIX, CONNECTION_ADVISORY_PREFIX, CONSUMER_ADVISORY_PREFIX, DEFAULT_ORDERED_TARGET, PRODUCER_ADVISORY_PREFIX, TEMP_DESTINATION_ADVISORY_PREFIX |
| Constructor Summary | |
ActiveMQTopic()
Default constructor for an ActiveMQTopic Destination |
|
ActiveMQTopic(java.lang.String name)
Construct a named ActiveMQTopic Destination |
|
| Method Summary | |
protected javax.jms.Destination |
createDestination(java.lang.String name)
Factory method to create a child destination if this destination is a composite |
protected JMSDestinationStats |
createDestinationStats()
Factory method to create a statistics counter object |
int |
getDestinationType()
|
java.lang.String |
getTopicName()
Gets the name of this Topic. |
| Methods inherited from class org.activemq.jndi.JNDIBaseStorable |
getProperties, getReference, setProperties |
| Methods inherited from class java.lang.Object |
clone, finalize, getClass, notify, notifyAll, wait, wait, wait |
| Methods inherited from interface javax.jms.Topic |
toString |
| Constructor Detail |
public ActiveMQTopic()
public ActiveMQTopic(java.lang.String name)
name - | Method Detail |
public java.lang.String getTopicName()
Clients that depend upon the name are not portable.
getTopicName in interface javax.jms.Topicpublic int getDestinationType()
getDestinationType in class ActiveMQDestinationprotected javax.jms.Destination createDestination(java.lang.String name)
ActiveMQDestination
createDestination in class ActiveMQDestinationname -
protected JMSDestinationStats createDestinationStats()
ActiveMQDestination
createDestinationStats in class ActiveMQDestination
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