January 2012
Intermediate to advanced
522 pages
11h
English
book
Oracle Service Bus 11g Development Cookbook
by Guido Schmutz (Euro), Edwin Biemond, Jan v Zoggel, Mischa Koelliker, Eric Elzinga
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Consuming messages from a topic with non-durable/durable subscription
Subscribing to and consuming messages from a JMS topic is similar to consuming messages from a JMS queue. The main difference between a topic and a queue is that the topic can have multiple subscribers and that a subscription can either be durable or non-durable. With a durable topic, a message that cannot be delivered due to the subscriber being unavailable will be kept by the JMS server and delivered later when the subscriber is back online.
In this recipe, we will show you how to implement a proxy service as a subscriber for the topic. The proxy service will act as a listener on the JMS topic and will get active as soon as a message arrives in the topic. First we implement ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
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.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
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.