Search icon CANCEL
Subscription
0
Cart icon
Your Cart (0 item)
Close icon
You have no products in your basket yet
Arrow left icon
Explore Products
Best Sellers
New Releases
Books
Videos
Audiobooks
Learning Hub
Free Learning
Arrow right icon
Arrow up icon
GO TO TOP
Java EE 8 Application Development

You're reading from   Java EE 8 Application Development Develop Enterprise applications using the latest versions of CDI, JAX-RS, JSON-B, JPA, Security, and more

Arrow left icon
Product type Paperback
Published in Dec 2017
Publisher Packt
ISBN-13 9781788293679
Length 372 pages
Edition 1st Edition
Languages
Tools
Arrow right icon
Author (1):
Arrow left icon
David R. Heffelfinger David R. Heffelfinger
Author Profile Icon David R. Heffelfinger
David R. Heffelfinger
Arrow right icon
View More author details
Toc

Table of Contents (15) Chapters Close

Preface 1. Introduction to Java EE FREE CHAPTER 2. JavaServer Faces 3. Object Relational Mapping with the Java Persistence API 4. Enterprise JavaBeans 5. Contexts and Dependency Injection 6. JSON Processing with JSON-P and JSON-B 7. WebSocket 8. Java Messaging Service 9. Securing Java EE Applications 10. RESTful Web Services with JAX-RS 11. Microservices Development with Java EE 12. Web Services with JAX-WS 13. Servlet Development and Deployment 14. Configuring and Deploying to GlassFish

Exposing EJBs as web services

In addition to creating web services as described in the previous section, public methods of stateless session beans can easily be exposed as web services by simply adding an annotation to the EJB class. The following example illustrates how to do this:

package net.ensode.javaee8book.ejbws; 
 
import javax.ejb.Stateless; 
import javax.jws.WebService; 
 
@Stateless 
@WebService 
public class DecToHexBean { 
 
  public String convertDecToHex(int i) { 
    return Integer.toHexString(i); 
  } 
} 

As we can see, the only thing we need to do to expose a stateless session bean's public methods is to decorate its class declaration with the @WebService annotation. Needless to say, since the class is a session bean, it also needs to be decorated with the @Stateless annotation.

Just like regular stateless session beans, the ones whose methods are exposed...

lock icon The rest of the chapter is locked
Register for a free Packt account to unlock a world of extra content!
A free Packt account unlocks extra newsletters, articles, discounted offers, and much more. Start advancing your knowledge today.
Unlock this book and the full library FREE for 7 days
Get unlimited access to 7000+ expert-authored eBooks and videos courses covering every tech area you can think of
Renews at $19.99/month. Cancel anytime
Banner background image