February 2002
Beginner to intermediate
544 pages
10h 23m
English
book
Java™ Message Service API Tutorial and Reference: Messaging for the J2EE™ Platform
by Mark Hapner, Rich Burridge, Rahul Sharma, Joseph Fialli, Kim Haase
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48.1. Overview and Related Methods and Interfaces
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.
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 ...
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.