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The Phone Book Bean Example

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And, as usual there is an empty constructor for the Entity Bean

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MyPhonebookLocal.java is the business interface that drives the above mentioned Entity Bean.

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MyPhonebookBean.java is where the implementation of the local (and if there is, a the remote) interface exists. To explain what the annotations in this Stateless Session Bean means I will enumerate them:

1. @Stateless - tells Geronimo that this is a stateless session bean
2. @PersistenceUnit - tells Geronimo to retrieve a persistence unit defined in the persistence.xml and place it in the EntityManagerFactory

   Note

   Note that PersistenceContext is used when you are directly obtaining a EntityManager. For an EntityManagerFactory use PersistenceUnit.

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index.jsp is the JSP page that uses the EJB to access the database.

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Deployment Plans

persistence.xml will specify the name of the PersistenceUnit. This name is used when referencing for the EntityManagerFactory. I have denoted it as PhonePU. I added an extra property called SynchronizeMappings so that the data in the database will not be overwritten.

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Deployment Plan for the Application

plan.xml is generated by building the sample and can be found under ./myphonebook-jetty/target/resources/META-INF/plan.xml to deploy on jetty or ./myphonebook-tomcat/target/resources/META-INF/plan.xml to deploy on tomcat following a successful build of the sample. Shown below is the deployment plan for tomcat.

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Building, Configuring, and Deploying the Application

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