Getting Started with WebSphere Application Server

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96 Getting Started with WebSphere Application Server Community Edition a) Run as an standalone application client (POJO Client) Just as a regular Java application, run the application client on a different JVM from that of the Community Edition server. This client is also known as a POJO Client. To launch the application client, use this command: java [ApplicationClientQualifiedName] For example, java appclient.HelloEJBAppclient b) Deployed and run in the application client container To deploy the application client in the application client container, a deployment plan is required. The deployment plan is called geronimo-application-client.xml. Similar to EJB’s deployment plan, a configuration id has to be defined. However, because the application client can be used in the server environment and client environment, this deployment plan has to include two configuration ids. Listing 5.9 provides an example. default HelloAppClientClientSide 1.0 car default HelloAppClientServerSide 1.0 car Listing 5.9 - Deployment plan of an application client
Note: Chapter 5 – Enterprise Java Beans 97 The configuration id for server and client environments should be different. The application client with its deployment plan can be packaged as a jar file. Figure 5.2 provides an example of a jar file structure. All the class files are built by Eclipse automatically from the source code created above; geronimo-application-client is the deployment plan for this application client. Figure 5.2 - Jar file structure of an application client with its deployment plan Deploy and run the application client with this command. java -jar /bin/client.jar [PATH to application client] For example: java -jar /bin/client.jar HelloAppClient/HelloEJBAppClient 5.4 Java Persistence API Entities Development in Community Edition Java Persistence API (JPA) is a new API as part of the Java EE 5 platform for data persistency. Although JPA is part of EJB 3.0, its development process is quite different from an EJB. This section describes how to develop JPA entities in Community Edition. There are two methods to create JPA entities: • Create JPA entities manually with JPA annotations • Generate JPA entities from tables of a database 5.4.1 Creating JPA entities manually To create JPA entities manually, you need to use the annotation defined in the JPA specification. All the annotations defined there, such as @Entity, @EntityManager, @PersistenceUnit and so on, can be used in your JPA classes.
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G E T T I N G S T A R T E D W I T H
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Notices This information was develo
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Trademarks IBM, the IBM logo, and i
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3.8 Exercises .....................
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9.3.2 Changing port numbers .......
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13 Preface Keeping your skills curr
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The DB2 on Campus book series 15
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18 Getting Started with WebSphere A
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1 Chapter 1 - Introduction to WebSp
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Introduction to WebSphere Applicati
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PART III - ADMINISTERING COMMUNITY
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10 Chapter 10 - Tuning a Community
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A Appendix A - Solutions to review
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B Appendix B - Up and running with
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Appendix B - Up and running with DB
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C Appendix C - Using the sample cod
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