- All Superinterfaces:
- All Known Subinterfaces:
public interface Topic extends DestinationA
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
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 Jakarta Messaging API places no restriction on what a
Topicobject 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
java.lang.String getTopicName() throws JMSExceptionGets the name of this topic.
Clients that depend upon the name are not portable.
- the topic name
JMSException- if the Jakarta Messaging provider implementation of
Topicfails to return the topic name due to some internal error.
java.lang.String toString()Returns a string representation of this object.
- the provider-specific identity values for this topic