In this section, we take a look at the Java Web Service (JWS) file, which is simply a Java class annotated with the @WebService
annotation (http://java.sun.com/javase/6/docs/api/javax/jws/WebService.html), for implementing a JAX-WS Web Service. JSR 181: Web Services Metadata for the Java Platform defines the standard annotations that can be used in a Java Web Service. The javax.jws.WebService
annotation specifies that a class implements a web service. All the attributes of the @WebService
annotation are optional. First, create a Java class by selecting Java Class in the New Gallery. In the Create Java Class window, specify the class name as EJB3WSImpl
. A Web Service class gets added to the EJB 3.0 project. The Entity class may also be made a web service by annotating it with the @WebService
annotation. However, creating a separate Web Service class provides the advantage of de-coupling the Entity bean from the web service; if modifications are required to the...
EJB 3.0 Database Persistence with Oracle Fusion Middleware 11g
EJB 3.0 Database Persistence with Oracle Fusion Middleware 11g
Overview of this book
EJB (Enterprise JavaBeans) 3.0 is a commonly used database persistence technology in Java EE applications. EJB 3.0 has simplified the development of EJBs with an annotations-based API that eliminates the use of remote/local interfaces, home/local home interfaces, and deployment descriptors. A number of other books are available on EJB 3.0, but none covers EJB 3.0 support in Oracle Fusion Middleware 11g, which is one of the leaders in the application server market.This is the first book that covers all aspects of EJB 3.0 database persistence development using Oracle Fusion Middleware technology. It covers all the best practices for database persistence ensuring that your applications are easily maintainable. Leaving theory behind, this book uses real-world examples to guide you in building your own EJB 3.0 applications that are well integrated with commonly used Java EE frameworks.The book gets going by discussing the new features in the EJB 3.0 specification. As some readers may still be using EJB 2.0, the book explains how to convert your EJB 2.0 entity beans to EJB 3.0. It then goes on to discuss using EJB 3.0 database persistence with JDeveloper, WebLogic Server, and Enterprise Pack for Eclipse, the main Java EE components of Oracle Fusion Middleware 11g. The book also covers EJB 3.0 relationships and integrating EJB 3.0 relationships with JSF user interfaces. EJB 3.0 database persistence with some of the commonly used frameworks such as ADF Faces, AJAX, and Web Services is also discussed in the book. It uses the integrated WebLogic Server 11g in some of the chapters and the standalone WebLogic Server in other chapters. While JDeveloper is the primary Java IDE used in the book, one of the chapters is based on the Oracle Enterprise Pack for Eclipse.By the time you reach the end of this book, you will be well-versed with developing EJB 3.0 applications using the different Java EE components of Oracle Fusion Middleware 11g.
Table of Contents (15 chapters)
EJB 3.0 Database Persistence with Oracle Fusion Middleware 11g
Credits
About the Author
About the Reviewers
Preface
Free Chapter
What's New in EJB 3.0
Converting an EJB 2.0 Entity to an EJB 3.0 Entity
EclipseLink JPA Persistence Provider
Building an EJB 3.0 Persistence Model with Oracle JDeveloper
EJB 3.0 Persistence with Oracle Enterprise Pack for Eclipse
EJB 3.0 with ADF Faces UI
Creating EJB 3.0 Entity Relationships
EJB 3.0 Database Persistence with Ajax in the UI
Using JSF with Entity Relationships
Creating an EJB 3.0 Web Service
Customer Reviews