Editing persistent.xml 

Use

You edit the deployment descriptor in the relevant multipage editor. The multipage editor ensures that the elements in the generated XML file are complete and in the correct order.

The tabs of the multipage editor are organized to reflect the structure of the descriptor being edited. The final tab, Source, displays the generated XML file. You can also directly edit the XML file here (for example, using cut and paste).

Here, the general procedure for editing the file is described. For description of specific tasks, follow the links listed below.

Prerequisites

An EJB Module project with a CMP enterprise bean.

Procedure

       1.      In the J2EE Explorer view, select the persistence.xml node.

       2.      From the context menu, choose Open.

The multipage editor is displayed.

       3.      Select the relevant tab and enter your changes.

       4.      Choose Save from the toolbar.

Related Procedures

The procedures are grouped under the relevant tab names.

General

Specifying the Data Source and Database Vendor

Choosing the Locking Type

Verifying the Object/Relational Mapping

Entity Beans

Mapping Entity Beans to Database Tables

Mapping Persistent Fields (cmp-fields)

Defining Entity Beans as Read-Only

Specifying the Deployment Properties of Finder/Select Queries