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Akka Cookbook

You're reading from   Akka Cookbook Recipes for concurrent, fast, and reactive applications

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Product type Paperback
Published in May 2017
Publisher Packt
ISBN-13 9781785288180
Length 414 pages
Edition 1st Edition
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Authors (3):
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Vivek Mishra Vivek Mishra
Author Profile Icon Vivek Mishra
Vivek Mishra
Piyush Mishra Piyush Mishra
Author Profile Icon Piyush Mishra
Piyush Mishra
Héctor Veiga Ortiz Héctor Veiga Ortiz
Author Profile Icon Héctor Veiga Ortiz
Héctor Veiga Ortiz
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Toc

Table of Contents (12) Chapters Close

Preface 1. Diving into Akka FREE CHAPTER 2. Supervision and Monitoring 3. Routing Messages 4. Using Futures and Agents 5. Scheduling Actors and Other Utilities 6. Akka Persistence 7. Remoting and Akka Clustering 8. Akka Streams 9. Akka HTTP 10. Understanding Various Akka patterns 11. Microservices with Lagom

The pausable actor pattern

Another common pattern among all enterprise integration patterns is to have a pausable entity. In the case of Akka, we might want to do this in order to make sure that an actor has finished processing one message before receiving another. We can easily create another actor to accomplish this thanks to two features: become/unbecome and stash/unstash. Become/unbecome lets us change the behavior of an actor at runtime. Stash/unstash lets us save messages in an internal queue to later put them back into the mailbox. Then, this new actor will act as a proxy in front of your actor to deliver messages one by one only.

Getting ready

To step through this recipe, we need to import the Hello-Akka project; all other prerequisites are the same...

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