[jboss-user] [EJB 3.0] - Inject EJB 2.1 Entity Home into EJB 3.0 session beans using

[benwalker_vf]

Hi,

Has anyone been able to inject a 2.1 entity bean home into 3.0 session bean using the @EJB annotation in jboss-5.0.0.Beta4?

I have tried the following (fairly sure it should work according to EJB3 spec)

Session Fragment: -

  | @Stateless(name="ExampleService")
  | @Local(ExampleService.class)
  | @Remote(ExampleServiceRemote.class)
  | @TransactionAttribute(REQUIRED)
  | public class ExampleServiceBean implements ExampleService,ExampleServiceRemote,Serializable {
  | 
  | 	private static final long serialVersionUID = -7533521006618484580L;
  | 
  | 	@EJB
  | 	private Example21EntityHome example21EntityHome;
  | 	
  | 	private static Logger logger = Logger.getLogger(ExampleServiceBean.class);
  | 	
  | 	/**
  | 	 * Does what ever you tell it too
  | 	 * @param whatToDo request text
  | 	 * @return string response text
  | 	 */
  | 	public String doSomething(String whatToDo) {
  | 		
  | 		
  | 		String doing = "doing " + whatToDo;
  | 		
  | 		try {
  | 			example21EntityHome.create(doing);
  | 		} catch (CreateException e) {
  | 			
  | 			logger.error("Unable to create 2.1 entity bean",e);
  | 		}
  | 		
  | 		logger.info(doing);
  | 		return doing;
  | 		
  | 	}
  | 	
  | 	
  | 	
  | }

Entity Fragment : -

  | public abstract class Example21EntityBean extends EntityAdapter implements Serializable {
  | 	
  | 	public abstract Integer getPk();
  | 	
  | 	public abstract void setPk(Integer pk);
  | 	
  | 	public abstract String getData();
  | 	
  | 	public abstract void setData(String data);
  | 	
  | 	public Integer ejbCreate(String data) throws CreateException {
  | 		// dummy, pk set by auto-generated-pk
  | 		setPk(0);
  | 		setData(data);
  | 		return null;
  | 	}
  | 	
  | 	public void ejbPostCreate(String data) {
  | 		// empty implementation
  | 		
  | 	}
  | }

2.1 Entity Bean Deployment Descriptor

  | <?xml version="1.0" encoding="UTF-8"?>
  | <!DOCTYPE ejb-jar PUBLIC "-//Sun Microsystems, Inc.//DTD Enterprise JavaBeans 2.0//EN"	"http://java.sun.com/dtd/ejb-jar_2_0.dtd">	
  | <ejb-jar>
  | 	<display-name>Example 21 Legacy</display-name>	
  | 	<enterprise-beans>
  | 		<entity>
  | 			<ejb-name>Example21Entity</ejb-name>
  | 			<local-home>com.entitybean21.Example21EntityHome</local-home>
  | 			<local>com.entitybean21.Example21Entity</local>
  | 			<ejb-class>com.entitybean21.Example21EntityBean</ejb-class>
  | 			<persistence-type>Container</persistence-type>
  | 			<prim-key-class>java.lang.Integer</prim-key-class>
  | 			<reentrant>false</reentrant>
  | 			<abstract-schema-name>Example21Entity</abstract-schema-name>
  | 			<cmp-field>
  | 				<description>This is the PK</description>
  | 				<field-name>pk</field-name>
  | 			</cmp-field>
  | 			<cmp-field>
  | 				<field-name>data</field-name>
  | 			</cmp-field>
  | 			<primkey-field>pk</primkey-field>
  | 		</entity>	
  | 	</enterprise-beans>
  | 	<assembly-descriptor>
  | 		<container-transaction>
  | 			<method>
  | 				<ejb-name>Example21Entity</ejb-name>
  | 				<method-name>create</method-name>
  | 			</method>
  | 			<trans-attribute>Required</trans-attribute>
  | 		</container-transaction>
  | 		<container-transaction>
  | 			<method>
  | 				<ejb-name>Example21Entity</ejb-name>
  | 				<method-name>*</method-name>
  | 			</method>
  | 			<trans-attribute>Supports</trans-attribute>
  | 		</container-transaction>
  | 	</assembly-descriptor>
  | </ejb-jar>
  | 

However, on deployment I get the following stack trace: -

  | 17:13:58,517 ERROR [ProfileServiceBootstrap] Failed to load profile: Summary of incomplete deployments (SEE PREVIOUS ERRORS FOR DETAILS):
  | 
  | *** CONTEXTS MISSING DEPENDENCIES: Name -> Dependency{Required State:Actual State}
  | 
  | jboss.j2ee:ear=example.ear,jar=example-ejb.jar,name=ExampleService,service=EJB3
  |  -> <UNKNOWN>{Described:** UNRESOLVED Demands 'Class:com.entitybean21.Example21EntityHome **}
  |  -> <UNKNOWN>{Described:** UNRESOLVED Demands 'jboss.ejb:service=EJBTimerService **}
  | 
  | 
  | *** CONTEXTS IN ERROR: Name -> Error
  | 
  | <UNKNOWN> -> ** UNRESOLVED Demands 'jboss.ejb:service=EJBTimerService **
  | 

NB Packaged as two ejb jar files in the same ear to get around issue posted @ http://www.jboss.org/?module=bb&op=viewtopic&t=103268

Has anyone tried to do something similar? Is this supported functionality?

Thanks
Ben

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