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The above Order.ear file contains two modules. One is OrderWEB.war file which is a web module and the other is OrderEJB.jar file which is an ejb module. The META-INF folder of Order.ear file contains the application deployment descriptor (application.xml) and the geronimo application deployment plan (geronimo-application.xml). The web application and the ejb application have packaged only their respective deployment descriptors. But the deployment plans for these modules are provided in the geronimo-application.xml.
The web application (OrderWAR.war) looks up stateless session bean in the OrderEJB.jar module to retrieve the order information. The RetrieveOrderInfoBean in OrderEJB.jar module uses JDBC connection to read the order information from a DB2 database.

The deployment descriptor of the OrderEJB.jar is as follows.

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borderStyle	solid
title	ejb-jar.xml of OrderEJB.jar

<?xml version="1.0" encoding="UTF-8" ?> 
<ejb-jar xmlns="http://java.sun.com/xml/ns/javaee" version="3.0" 
  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
  xsi:schemaLocation="http://java.sun.com/xml/ns/javaee 
             http://java.sun.com/xml/ns/javaee/ejb-jar_3_0.xsd">
  <description>Stateless Session Bean Example</description> 
  <display-name>Stateless Session Bean Example</display-name> 
 <enterprise-beans>
   <session>
     <ejb-name>RetrieveOrderInfoBean</ejb-name>
     <business-local>
         examples.session.stateless_dd.RetrieveOrderInfo
     </business-local>
     <ejb-class>
         examples.session.stateless_dd.RetrieveOrderInfoBean
     </ejb-class> 
     <session-type>Stateless</session-type> 
     <transaction-type>Container</transaction-type> 
 
	  <resource-ref>
		<res-ref-name>
                  jdbc/DB2DataSource
                </res-ref-name>
		<res-type>
                  javax.sql.DataSource
                </res-type>
		<res-auth>Container</res-auth>
		<res-sharing-scope>
                  Shareable
                </res-sharing-scope>
	  </resource-ref>
		 
	 
   </session>
 </enterprise-beans>
 
 <interceptors>
   <interceptor>
       <interceptor-class>
         examples.session.stateless_dd.RetrieveOrderCallbacks
       </interceptor-class>
       <post-construct>
         <lifecycle-callback-method>
            construct
         </lifecycle-callback-method>
       </post-construct>
       <pre-destroy>
          <lifecycle-callback-method>
              destroy
          </lifecycle-callback-method>
       </pre-destroy> 
    </interceptor>
  </interceptors> 
  
  <assembly-descriptor>
    <interceptor-binding>
      <ejb-name>RetrieveOrderInfoBean</ejb-name>
      <interceptor-class>
        examples.session.stateless_dd.RetrieveOrderCallbacks
      </interceptor-class>
    </interceptor-binding>  
  </assembly-descriptor>  
</ejb-jar>

The deployment descriptor of the OrderWEB.war is as follows.

Code Block

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borderStyle	solid
title	web.xml of OrderWEB.war

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
     xmlns="http://java.sun.com/xml/ns/javaee" 
     xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"  
     xsi:schemaLocation="http://java.sun.com/xml/ns/javaee
      http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" 
     id="WebApp_ID" 
     version="2.5">
  <display-name>OrderWEB</display-name>
  <welcome-file-list>
    <welcome-file>index.html</welcome-file>
    <welcome-file>index.htm</welcome-file>
    <welcome-file>index.jsp</welcome-file>
    <welcome-file>default.html</welcome-file>
    <welcome-file>default.htm</welcome-file>
    <welcome-file>default.jsp</welcome-file>
  </welcome-file-list>
  <servlet>
    <description></description>
    <display-name>RetrieveOrder</display-name>
    <servlet-name>RetrieveOrder</servlet-name>
    <servlet-class>
       examples.web.servlet.RetrieveOrder
    </servlet-class>
  </servlet>
  <ejb-local-ref>
  	<ejb-ref-name>ejb/RetrieveOrderInfo
        </ejb-ref-name>
  	<ejb-ref-type>Session</ejb-ref-type>
  	<local>
         examples.session.stateless_dd.RetrieveOrderInfo
        </local>
  	<ejb-link>RetrieveOrderInfoBean</ejb-link>
  </ejb-local-ref>
  <servlet-mapping>
    <servlet-name>RetrieveOrder</servlet-name>
    <url-pattern>/RetrieveOrder</url-pattern>
  </servlet-mapping>
</web-app>

The deployment descriptor of the Order.ear is as follows.

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borderStyle	solid
title	application.xml of Order.ear

<?xml version="1.0" encoding="UTF-8"?>
<application xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
             xmlns="http://java.sun.com/xml/ns/javaee" 
 xmlns:application="http://java.sun.com/xml/ns/javaee/application_5.xsd"
 xsi:schemaLocation="http://java.sun.com/xml/ns/javaee 
 http://java.sun.com/xml/ns/j2ee/application_5.xsd" version="5">
  <description>EAR Example</description>
  <display-name>Order Sample</display-name>
  <module>
    <web>
      <web-uri>OrderWEB.war</web-uri>
      <context-root>/OrderDemo</context-root>
    </web>
  </module>
  <module>
    <ejb>OrderEJB.jar</ejb>
  </module>
</application>

The deployment plan of the Order.ear is as follows.

Code Block

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borderStyle	solid
title	geronimo-application.xml of Order.ear

<?xml version="1.0" encoding="UTF-8"?>
<application xmlns="http://geronimo.apache.org/xml/ns/j2ee/application-2.0" 
             xmlns:sys="http://geronimo.apache.org/xml/ns/deployment-1.2" 
             application-name="Order">
  <sys:environment>
    <sys:moduleId>
      <sys:groupId>Order</sys:groupId>
      <sys:artifactId>OrderEAR</sys:artifactId>
      <sys:version>5.0</sys:version>
      <sys:type>car</sys:type>
    </sys:moduleId>
  </sys:environment>
  
    <module>
        <web>OrderWEB.war</web>
        <web-app xmlns="http://geronimo.apache.org/xml/ns/j2ee/web-2.0.1" >
        <sys:environment>
            <sys:moduleId>
            	<sys:groupId>Order</sys:groupId>
            	<sys:artifactId>OrderWEB</sys:artifactId>
            	<sys:version>2.5</sys:version>
            	<sys:type>war</sys:type>
        	</sys:moduleId>
        </sys:environment>
 			<context-root>/OrderDemo</context-root>
        </web-app>
    </module>
    
	<module>
        <ejb>OrderEJB.jar</ejb>
        <openejb-jar 
         xmlns="http://openejb.apache.org/xml/ns/openejb-jar-2.2" 
         xmlns:naming="http://geronimo.apache.org/xml/ns/naming-1.2">

   		<sys:environment>
        	 <sys:moduleId>
            	  <sys:groupId>Order</sys:groupId>
            	  <sys:artifactId>OrderEJB</sys:artifactId>
          	  <sys:version>3.0</sys:version>
            	  <sys:type>jar</sys:type>
        	</sys:moduleId>
		
         	<sys:dependencies>
		 <sys:dependency>
                  <sys:groupId>console.dbpool</sys:groupId>
                  <sys:artifactId>OrderDS</sys:artifactId>
                  <sys:version>1.0</sys:version>
               	  <sys:type>rar</sys:type>
            	 </sys:dependency>
		</sys:dependencies>
    		</sys:environment>
    		
		<enterprise-beans>
		<session>
		 <ejb-name>RetrieveOrderInfoBean</ejb-name>
	          <naming:resource-ref>
		   <naming:ref-name>
                     jdbc/DB2DataSource
                   </naming:ref-name>
		   <naming:resource-link>
                      OrderDS
                   </naming:resource-link>
		  </naming:resource-ref>
			</session>
		</enterprise-beans>
	    		
        </openejb-jar>
	</module>        
</application>

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