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WebSphere Application Server V7.0: Concepts ... - IBM Redbooks

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► Enterprise JavaBeans (EJB) thin client<br />

<strong>WebSphere</strong> <strong>Application</strong> <strong>Server</strong> <strong>V7.0</strong> introduces an EJB thin client. An EJB<br />

client is a Java application that accesses the remote EJB from a server<br />

through Java Native Directory Interface (JNDI) lookup. The EJB client is thin,<br />

as it only requires the EJB thin client runtime library, as opposed to a<br />

complete application client or application server installation.<br />

For more information, see the following Web pages:<br />

– RCP Project<br />

http://www.eclipse.org/home/categories/rcp.php<br />

– RCP tutorial<br />

http://www.eclipse.org/articles/Article-RCP-1/tutoria11.html<br />

► Just in time deployment for EJB 3.0 module<br />

Prior to <strong>WebSphere</strong> <strong>Application</strong> <strong>Server</strong> <strong>V7.0</strong>, to run enterprise beans on<br />

<strong>WebSphere</strong> <strong>Application</strong> <strong>Server</strong> you needed to use the EJBDeploy tool to<br />

generate the deployment code for the enterprise beans. The EJBDeploy tool<br />

manually resolved each EJB reference to its target EJB JNDI name.<br />

<strong>WebSphere</strong> <strong>Application</strong> <strong>Server</strong> <strong>V7.0</strong> introduces a new feature that performs<br />

just-in-time deployment for EJB 3.0 modules. The application server<br />

automatically locates the correct target EJB reference binding.<br />

► <strong>WebSphere</strong> Business Level <strong>Application</strong><br />

<strong>WebSphere</strong> Business Level <strong>Application</strong> expands the notion of applications<br />

beyond Java EE 5. It enables new formats for deployment packages, and a<br />

new way of representing applications. It enables you to create a new logical<br />

application that represents a meaningful business function.<br />

We discuss this more in 3.1.12, “Business level applications” on page 70.<br />

Also for more information, see the <strong>WebSphere</strong> <strong>Application</strong> <strong>Server</strong> Information<br />

Center at the following Web page:<br />

http://publib.boulder.ibm.com/infocenter/wasinfo/v7r0/topic/com.ibm.<br />

websphere.nd.doc/info/ae/ae/crun_app_bla.html<br />

282 <strong>WebSphere</strong> <strong>Application</strong> <strong>Server</strong> <strong>V7.0</strong>: <strong>Concepts</strong>, Planning, and Design

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