public interface Topic extends Destination
Topicobject encapsulates a provider-specific topic name.
It is the way a client specifies the identity of a topic to Jakarta Messaging 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:
Many publish/subscribe (pub/sub) providers group topics into hierarchies and provide various options for subscribing
to parts of the hierarchy. The Jakarta Messaging 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 Jakarta Messaging 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
String getTopicName() throws JMSException
Clients that depend upon the name are not portable.
JMSException- if the Jakarta Messaging provider implementation of
Topicfails to return the topic name due to some internal error.
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