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This example shows how to create a Stateful session EJB using annotations.

A Stateful session bean is a session bean whose instances can maintain the conversational state with the client.  The conversational state of the stateful session bean, which describes the conversation between a specific client and a session bean, is contained in the fields of the stateful session bean.

Simply put, when you create a stateful bean an actual instance is created by the container and *dedicated* to you and only you.  Every call you make will go to your instance.  Further, your instance will not be shared with anyone unless you give them a reference to your stateful bean.  The instance will last until you remove it or until it times-out and is removed by the container.

With EJB 3.0, it's now possible to write stateful session bean without specifying a deployment descriptor; you basically have to write just a remote or local business interface, which is a plain-old-java-interface, annotated with the @Remote or @Local annotation the stateful session bean implementation, a plain-old-java-object which implements the remote or the local business interface and is annotated with the @Stateful annotation

_This example is the "simple-stateful" example located in the [openejb-examples.zip|OPENEJB:Download] available on the download page._



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