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Mastering Java EE Development with WildFly

You're reading from   Mastering Java EE Development with WildFly Create Enterprise-grade Java applications with WildFly

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Product type Paperback
Published in Jun 2017
Publisher Packt
ISBN-13 9781787287174
Length 468 pages
Edition 1st Edition
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Author (1):
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Luca Stancapiano Luca Stancapiano
Author Profile Icon Luca Stancapiano
Luca Stancapiano
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Table of Contents (20) Chapters Close

Preface 1. Introducing Java EE and Configuring the Development Environment 2. Working with Dependency Injection FREE CHAPTER 3. Persistence 4. Implementing Business Logic 5. Working with Distributed Transactions 6. Creating REST Services 7. Implementing WebSockets 8. Working with Messaging 9. Implementing a Mail Client 10. Asynchronous REST 11. Asynchronous EJB 12. Batches and Workflows 13. Working with Servlets and JSP 14. Writing a JSF Application 15. Sharing the Web Sessions 16. WildFly in Cloud 17. Share your Data 18. Deployment 19. Working with OSGi

Queues and topics

JMS works inside channels of messages that manage the messages asynchronously. These channels contain messages that they will collect or remove according the configuration and the type of channel.

These channels are of two types, queues and topics. These channels are highly configurable by the WildFly console. Like all components in WildFly they can be installed through the console command line or directly with maven plugins of the project.

In the next two paragraphs, we will show what they mean and all the possible configurations.

Queues

Queues collect the sent messages that are waiting to be read. The messages are delivered in the order they are sent and when beds are removed from the queue.

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