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Jakarta EE Application Development

You're reading from   Jakarta EE Application Development Build enterprise applications with Jakarta CDI, RESTful web services, JSON Binding, persistence, and security

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Product type Paperback
Published in Feb 2024
Publisher Packt
ISBN-13 9781835085264
Length 316 pages
Edition 2nd Edition
Languages
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Author (1):
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David R. Heffelfinger David R. Heffelfinger
Author Profile Icon David R. Heffelfinger
David R. Heffelfinger
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Table of Contents (18) Chapters Close

Preface 1. Chapter 1: Introduction to Jakarta EE FREE CHAPTER 2. Chapter 2: Contexts and Dependency Injection 3. Chapter 3: Jakarta RESTful Web Services 4. Chapter 4: JSON Processing and JSON Binding 5. Chapter 5: Microservices Development with Jakarta EE 6. Chapter 6: Jakarta Faces 7. Chapter 7: Additional Jakarta Faces Features 8. Chapter 8: Object Relational Mapping with Jakarta Persistence 9. Chapter 9: WebSockets 10. Chapter 10: Securing Jakarta EE Applications 11. Chapter 11: Servlet Development and Deployment 12. Chapter 12: Jakarta Enterprise Beans 13. Chapter 13: Jakarta Messaging 14. Chapter 14: Web Services with Jakarta XML Web Services 15. Chapter 15: Putting it All Together 16. Index 17. Other Books You May Enjoy

Asynchronous processing

Traditionally, servlets have created a single thread per request in Java web applications. After a request is processed, the thread is made available for other requests to use. This model works fairly well for traditional web applications, in which HTTP requests are relatively few and far between. However, most modern web applications take advantage of Ajax (short for Asynchronous JavaScript and XML), a technique that makes web applications behave much more responsively than traditional web applications.

Ajax has the side effect of generating a lot more HTTP requests than traditional web applications. If some of these threads block for a long time waiting, for a resource to be ready or doing anything that takes a long time to process, it is possible our application may suffer from thread starvation.

To alleviate the situation described in the previous paragraph, the Servlet 3.0 specification introduced asynchronous processing. Using this new capability...

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