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From Juergen Weber <webe...@gmail.com>
Subject Re: JNDI Name for EJB3
Date Thu, 18 Jun 2009 09:15:48 GMT

I only wanted to try some security thing (which will be my next post ;-), so
I used a JSP for a quick test (which took rather long ;-)

I had had just a glance at
http://cwiki.apache.org/GMOxDOC21/mytime-very-simple-session-ejb-example.html
and there is neither web.xml nor ejb-ref. 

My original Exception without ejb-ref was

javax.naming.NotContextException: ejb/Secured3Bean
        at
org.apache.xbean.naming.context.AbstractContext.lookup(AbstractContext.java:171)
        at
org.apache.xbean.naming.context.AbstractContext.lookup(AbstractContext.java:611)
        at javax.naming.InitialContext.lookup(InitialContext.java:392)

I think this Exception is misleading, there should be a message like
"ejb-ref" is missing.
Throwing a NotContextException in this case is like if you are searching
something in a database and throwing an EntryNotFoundException when the
database is down.

On your suggestion I tried

 	<ejb-local-ref>
         <ejb-ref-name>ejb/Secured3</ejb-ref-name>
         <ejb-ref-type>Session</ejb-ref-type>
         <local>ejb3.Secured3</local>
         <ejb-link>Secure3</ejb-link>
      </ejb-local-ref>

but this gives the exception below.

Thanks,
Juergen


java.lang.NullPointerException
        at
org.apache.openejb.util.LinkResolver.resolveLink(LinkResolver.java:69)
        at
org.apache.openejb.assembler.classic.EjbResolver.resolveLink(EjbResolver.java:121)
        at
org.apache.openejb.assembler.classic.EjbResolver.resolve(EjbResolver.java:180)
        at
org.apache.openejb.config.JndiEncInfoBuilder.buildEjbRefs(JndiEncInfoBuilder.java:172)
        at
org.apache.openejb.config.JndiEncInfoBuilder.build(JndiEncInfoBuilder.java:129)
        at
org.apache.geronimo.openejb.deployment.EjbRefBuilder.buildNaming(EjbRefBuilder.java:153)
        at
org.apache.geronimo.j2ee.deployment.NamingBuilderCollection.buildNaming(NamingBuilderCollection.java:53)
        at
org.apache.geronimo.web25.deployment.AbstractWebModuleBuilder.configureBasicWebModuleAttributes(AbstractWebModuleBuilder.java:842)
        at
org.apache.geronimo.jetty6.deployment.JettyModuleBuilder.addGBeans(JettyModuleBuilder.java:365)
        at
org.apache.geronimo.j2ee.deployment.SwitchingModuleBuilder.addGBeans(SwitchingModuleBuilder.java:165)
        at
org.apache.geronimo.j2ee.deployment.EARConfigBuilder.buildConfiguration(EARConfigBuilder.java:647)
        at org.apache.geronimo.deployment.Deployer.deploy(Deployer.java:255)
        at org.apache.geronimo.deployment.Deployer.deploy(Deployer.java:134)
        at sun.reflect.GeneratedMethodAccessor496.invoke(Unknown Source)
        at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:597)
        at
org.apache.geronimo.gbean.runtime.ReflectionMethodInvoker.invoke(ReflectionMethodInvoker.java:34)
        at
org.apache.geronimo.gbean.runtime.GBeanOperation.invoke(GBeanOperation.java:124)
        at
org.apache.geronimo.gbean.runtime.GBeanInstance.invoke(GBeanInstance.java:867)
        at
org.apache.geronimo.kernel.basic.BasicKernel.invoke(BasicKernel.java:239)
        at
org.apache.geronimo.deployment.plugin.local.AbstractDeployCommand.doDeploy(AbstractDeployCommand.java:116)
        at
org.apache.geronimo.deployment.plugin.local.RedeployCommand.redeploySameConfiguration(RedeployCommand.java:225)
        at
org.apache.geronimo.deployment.plugin.local.RedeployCommand.run(RedeployCommand.java:101)
        at java.lang.Thread.run(Thread.java:619)
 




djencks wrote:
> 
> 
> On Jun 17, 2009, at 8:43 AM, Juergen Weber wrote:
> 
>>
>> Hi,
>>
>> I ran again into the problem of looking up an EJB3 from JNDI in a  
>> JSP (Ger
>> 2.1.4)
>>
>> The bean is
>>
>> @Stateless(name="Secure3")
>> public class Secured3Bean implements Secured3
>>
>> Deployment log says
>> 2009-06-17 17:31:22,989 INFO  [startup] Assembling app:
>> /projekte/geronimo-jetty6-javaee5-2.1.4/var/temp/geronimo- 
>> deployer4457332012373548807.tmpdir/Secured3Bean_ejb.jar
>> 2009-06-17 17:31:22,993 INFO  [startup] Jndi(name=Secure3Remote) -->
>> Ejb(deployment-id=Secured3Bean/Secure3)
>>
>> So I guess JNDI name is Secure3Remote.
>> but context.lookup("java:comp/env/Secure3Remote") throws an  
>> exeption, also
>> context.lookup("Secure3Remote") and all other permutations I could  
>> think of.
>>
>> http://cwiki.apache.org/GMOxDEV/client-jndi-names.html did not help.
>>
>> Could someone please give a hint what name I should try.
> 
> For phiosophical reasons I would not recommend using an ejb directly  
> from a jsp, rather I'd suggest a servlet that constructs an easily  
> rendered data model; in the servlet you can use annotations.
> 
> If you use a jsp you need to mention the ejb-ref in your web.xml and  
> that should give you the name to look up.
> 
> thanks
> david jencks
> 
>>
>> Thanks,
>> Juergen
>>
>> -- 
>> View this message in context:
>> http://www.nabble.com/JNDI-Name-for-EJB3-tp24076429s134p24076429.html
>> Sent from the Apache Geronimo - Users mailing list archive at  
>> Nabble.com.
>>
> 
> 

-- 
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