We’ve discussed XML deployment descriptors throughout this book. At this point, you probably know enough to write deployment descriptors on your own. However, it’s still worthwhile to take a tour through a complete deployment descriptor. Here’s the deployment descriptor for the Cabin bean, which we created in Chapter 4. It contains most of the tags that are needed to describe entity beans, and session beans aren’t much different. We’ll use this deployment descriptor to guide our discussion in the following sections.

<?xml version="1.0"?>

<!DOCTYPE ejb-jar PUBLIC "-//Sun Microsystems, Inc.//DTD Enterprise
JavaBeans 1.1//EN" "http://java.sun.com/j2ee/dtds/ejb-jar_1_1.dtd">

<ejb-jar>
 <enterprise-beans>
   <entity>
      <description>
            This Cabin enterprise bean entity represents a cabin on 
            a cruise ship.
      </description>
      <ejb-name>CabinBean</ejb-name>
      <home>com.titan.cabin.CabinHome</home>
      <remote>com.titan.cabin.Cabin</remote>
      <ejb-class>com.titan.cabin.CabinBean</ejb-class>
      <persistence-type>Container</persistence-type>
      <prim-key-class>com.titan.cabin.CabinPK</prim-key-class>
      <reentrant>False</reentrant>

      <cmp-field><field-name>id</field-name></cmp-field>
      <cmp-field><field-name>name</field-name></cmp-field>
      <cmp-field><field-name>deckLevel</field-name></cmp-field>
      <cmp-field><field-name>ship</field-name></cmp-field>
      <cmp-field><field-name>bedCount</field-name></cmp-field>
   </entity>
 </enterprise-beans>
 
 <assembly-descriptor>
   <security-role>
      <description>
         This role represents everyone who is allowed full access 
         to the cabin bean.
      </description>
     <role-name>everyone</role-name>
   </security-role>

   <method-permission>
     <role-name>everyone</role-name>
     <method>
         <ejb-name>CabinBean</ejb-name>
         <method-name>*</method-name>
     </method>
   </method-permission>

   <container-transaction>
     <method>
        <ejb-name>CabinBean</ejb-name>
        <method-name>*</method-name>
     </method>
     <trans-attribute>Required</trans-attribute>
   </container-transaction>
 </assembly-descriptor>
</ejb-jar>