This document provides an overview of RESTEasy, an open source Java framework for building RESTful web services. It discusses what REST is and why it is used, highlights key features of RESTEasy like portability and annotations, compares RESTEasy to Jersey, demonstrates how to use JAX-RS annotations to define RESTful resources and services, and provides references for additional information.

1. RESTEasy
Presented By,
Khushbu M.
Joshi
Exam No.

2. Agenda
 Introduction
 What is REST? Why REST?
 Features of RESTEasy
 RESTEasy vs. Jersey
 Annotations
 Using Annotations
 Demonstration of Restful web service
with RESTEasy
 References

3. Introduction
 Java API for RESTful Web Services
 Portable implementation that can run
in any servlet container
 Jboss AS
 RESTEasy JAX-RS Client Framework

4. What is REST?
 REST Stands for REpresentational
State Transfer.
 A concept, defined by Roy Fielding.
 Model each document and process as
a resource (noun) with a unique URI.
Everything has a unique URI.

5. Why REST?
 Scalable
 Human and machine usable
 Globally accessible resources
 Understandable URIs, resources, and
actions.

6. Features
 Portable
 Client framework
 Rich set of providers
 GZIP content-encoding
 Rich interceptor model
 Security
 EJB, Spring integration
 Stateless
 Platform independence
 Lightweight

7. Features (cont.)
 Embedded container
 Client API
 Interceptor framework
 Data formats
 Component Integration

8. RESTEasy vs. Jersey
RESTEasy Jersey
Easier component Harder component
integration integration
easier for EJB 3.0 and easier for Spring and JSON
SEAM integration integration
Can be used with any Can be used with Glassfish
application server Application server
Can be used with any Can be used with HTTP
protocol

9. Annotations
 @Path
 @ProduceMime, @ConsumeMime
 @GET, @POST, @DELETE, @PUT,
@HEADER
 @PathParam
 @QueryParam
 @HeaderParam
 @CookieParam
 @MatrixParam

10. How to use them?
 Producer
//Base URI path to resource
@Path(“/orders”)
public class OrderService {
//Extension to Base URI that the method maps to
@Path(“/{order-id}”)
//HTTP method
@GET
// returned content type
@ProduceMime(“application/xml”)
String getOrder(@PathParam(“order-id”) int id) {
…
}
}

11. How to use them? (cont.)
 Consumer
@Path(“/orders”)
public class OrderService {
@POST
// expecting content type from client
@ConsumeMime(“application/xml”)
void submitOrder(String orderXml) {
…
}
}

12. Reference
 Book: JBoss_Enterprise_Web_Platform-5-
RESTEasy_Reference_Guide-en-US
 http://www.packtpub.com/article/restful-web-service-
implementation-with-
resteasy?utm_source=rk_javarest_abr1_1109&utm_medium=
content&utm_campaign=ramsai
 http://www.ibm.com/developerworks/
 http://www.h-online.com/open/news/item/RESTEasy-brings-
REST-architecture-to-JBoss-739771.html
 http://my.safaribooksonline.com/book/programming/java/9781
847196460/resteasy-jax-rs/ch07lvl1sec03
 https://community.jboss.org/wiki/RestEasyInJBossDeveloper
StudioJBDSQuickstart
 Jboss.org
 http://technicalmumbojumbo.wordpress.com/2009/10/13/restf
ul-webservices-using-jboss-resteasy-tutorial/