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 JMS API methods. For those methods that use a
Destinationas a parameter, a
Topicobject may used as an argument . For example, a Topic can be used to create a
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
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
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
java.lang.String getTopicName() throws JMSException
Clients that depend upon the name are not portable.
JMSException- if the JMS provider implementation of
Topicfails to return the topic name due to some internal error.