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| <h1 class="topictitle1">Creating EJB 2.x projects</h1> |
| |
| |
| |
| <div><p>An EJB project is used to organize the resources contained in an |
| EJB module.</p> |
| |
| <div class="section"><p>An EJB module is used to assemble one or more enterprise beans |
| into a single deployable unit. It is deployed in a standard Java™ archive |
| (JAR) file. An EJB module can be used as a standalone application, or it can |
| be combined with other modules to create a J2EE enterprise application. An |
| EJB module is installed and run in an enterprise bean container. An EJB project |
| must be referenced by an enterprise application project (defined as a module |
| in an EAR) in order to be deployed successfully and run on a server.</p> |
| <p>An |
| EJB module contains the following:</p> |
| <ul> |
| <li>One or more deployable enterprise beans.</li> |
| |
| <li>A deployment descriptor, stored in an Extensible Markup Language (XML) |
| file. This file declares the contents of the module, defines the structure |
| and external dependencies of the beans in the module, and describes how the |
| enterprise beans are to be used at run time.</li> |
| |
| </ul> |
| <p>To create a new EJB project, complete the following steps:</p> |
| </div> |
| |
| <ol> |
| <li class="stepexpand"><span>In the Java EE perspective, select <span class="menucascade"><span class="uicontrol">File</span> |
| > <span class="uicontrol">New</span> > <span class="uicontrol">Other</span></span>.</span> |
| </li> |
| |
| <li class="stepexpand"><span>In the New Project Wizard, select <span class="menucascade"><span class="uicontrol">EJB</span> |
| > <span class="uicontrol">EJB Project</span></span> and click <span class="uicontrol">Next</span>.</span> |
| </li> |
| |
| <li class="stepexpand"><span>In the <span class="uicontrol">Project Name</span> field, type a name for |
| the EJB project.</span></li> |
| |
| <li class="stepexpand"><strong>Optional: </strong><span>To use a different workspace directory for |
| your EJB project, modify the settings for <span class="uicontrol">Project contents.</span> </span> |
| <div class="note"><span class="notetitle">Note:</span> If you specify a non-default project location that |
| is already being used by another project, the project creation will fail.</div> |
| |
| </li> |
| |
| <li class="stepexpand"><span>In the <span class="uicontrol">Target runtime</span> drop-down list, select |
| the application server that you want to target for your development. This |
| selection affects the compilation and runtime settings by modifying the class |
| path entries for the project. Use the <span class="uicontrol">New</span> button if |
| a target runtime does not exist, or if you want to use a different one.</span> |
| </li> |
| |
| <li class="stepexpand"><strong>Optional: </strong><span>Select the <span class="uicontrol">Add project to an EAR </span> check |
| box to add the new module to an enterprise application (EAR) project.</span> |
| Type a new project name or select an existing enterprise application |
| project from the drop-down list in the <span class="uicontrol">EAR Project</span> combination |
| box. Or, click the <span class="uicontrol">New</span> button to launch the New Enterprise |
| Application Project wizard. Click <span class="uicontrol">Next</span>.<div class="note"><span class="notetitle">Note:</span> If you |
| type a new EAR project name, the EAR project will be created in the default |
| location with the lowest compatible J2EE version based on the version of the |
| project being created. If you want to specify a different version or a different |
| location for the enterprise application, you must use the New Enterprise Application |
| Project wizard.</div> |
| </li> |
| |
| <li class="stepexpand"><strong>Optional: </strong><span>Change the value of <span class="uicontrol">Source Folder</span> to |
| change the directory where the Java source files are stored. </span></li> |
| |
| <li class="stepexpand"><strong>Optional: </strong><span>Select the <span class="uicontrol">Create an EJB Client |
| JAR Project to hold the client interfaces and classes</span> check box |
| if you want the client interface classes for your enterprise beans to be kept |
| in a separate EJB client JAR file. This EJB client JAR file will be added |
| to the enterprise application as a project utility JAR file. You can also |
| modify the <span class="uicontrol">Name</span> of the EJB Client JAR project, or the |
| name (<span class="uicontrol">Client JAR URI</span>) of the client JAR file. </span> |
| </li> |
| |
| <li class="stepexpand"><span>Click <span class="uicontrol">Finish</span>.</span></li> |
| |
| </ol> |
| |
| <div class="id_postreq"><div class="note"><span class="notetitle">Note:</span> The New Project Wizard will automatically |
| add default facets to your project. You can change these facets or add new |
| ones in the <span class="uicontrol">Preferences</span> window. For more information, |
| see <a href="../../org.eclipse.jst.j2ee.doc.user/topics/taddingfacet.html" title="This topic explains how to add a facet to an existing project in your workspace.">Adding a facet to a J2EE project</a>.</div> |
| <p class="anchor_topicbottom" /> |
| </div> |
| |
| </div> |
| |
| <div> |
| <ul class="ullinks"> |
| <li class="ulchildlink"><strong><a href="../topics/ceclientjars.html">EJB 2.x client JAR projects</a></strong><br /> |
| An EJB client JAR project contains all the class files that a client program needs to use the client view of the enterprise beans that are contained in the EJB module.</li> |
| </ul> |
| </div> |
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