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From atul12345 <atul.i...@gmail.com>
Subject Re: how to run Ejb program on geronimo
Date Wed, 02 Apr 2008 08:12:58 GMT



atul12345 wrote:
> 
> 
> 
> Hi Sir,
>          Thanks for help. I appreciate your attention. See ya!
> 	This is my ejb-jar.xml file here i do have  all the classes means
> interface name.
> 
> <ejb-jar id="ejb-jar_1" xmlns="http://java.sun.com/xml/ns/j2ee"
> 	 xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
> 	 xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee
> 	 http://java.sun.com/xml/ns/j2ee/ejb-jar_2_1.xsd" version="2.1">
> 	<description>Example of a session bean</description>
> 	<display-name>MyTimeBeanEJBName</display-name>
> 	<enterprise-beans>
> 		<session id="Session_MyTime">
> 			
> 			<ejb-name>My.DemoEJB</ejb-name>
> 			<home>My.DemoHome</home>
> 			<remote>My.DemoInter</remote>
> 			<ejb-class>My.DemoBean</ejb-class>
> 					
> 			<session-type>Stateful</session-type>
> 			<transaction-type>Container</transaction-type>
> 		</session>
> 	</enterprise-beans>
> </ejb-jar>
> 
> When I try to execute my client , I receive this error message:
> java.lang.ClassCastException.
> 
> java.lang.ClassCastException
>         at
> com.sun.corba.se.impl.javax.rmi.PortableRemoteObject.narrow(PortableR
>         at
> javax.rmi.PortableRemoteObject.narrow(PortableRemoteObject.java:137)
>         at HelloWorld.main(HelloWorld.java:31)
> Caused by: java.lang.ClassCastException: $Proxy0 cannot be cast to
> org.omg.CORBA
>         at
> com.sun.corba.se.impl.javax.rmi.PortableRemoteObject.narrow(PortableR
>         ... 2 more
> 
> Could anyone tell me what I’m doing wrong? Thanks a lot. Looking forward
> to hearing from you.
> 
> 
> 
> 
> manucet wrote:
>> 
>> Hi Atul,
>>             I am not sure but did you specify the home and remote
>> interfaces in the ejb-jar.xml file? If yes it will be helpful if you
>> can provide a test case.
>> 
>> Regards
>> Manu
>> 
>> On Tue, Apr 1, 2008 at 4:33 PM, atul12345 <atul.iims@gmail.com> wrote:
>>>
>>>  Actually after resolved jndi name problem i get one new error that is
>>>
>>>  java.lang.ClassCastException: $Proxy0 cannot be cast to My.DemoHome
>>>   if anyone have any idea what is this so please give  me suitable
>>> soluation
>>>  to resolve that problem.........
>>>
>>>
>>>
>>>
>>>
>>>  atul12345 wrote:
>>>  >
>>>  >  Dear Sir,
>>>  >
>>>  >               I am new programmer to Geronimo and EJB which are
>>> running on
>>>  > gentoo. i am createing stateful session bean like that........
>>>  > This is remote Interface..........
>>>  > package My;
>>>  >
>>>  > import java.rmi.*;
>>>  >
>>>  > import javax.ejb.*;
>>>  >
>>>  > public interface DemoInter extends EJBObject
>>>  > {
>>>  >            public int add(int a,int b) throws RemoteException;
>>>  > }
>>>  >
>>>  >
>>>  > This is Home Interface..........
>>>  > package My;
>>>  >
>>>  > import javax.ejb.*;
>>>  > import java.rmi.*;
>>>  >
>>>  >
>>>  >
>>>  > public interface DemoHome extends EJBHome
>>>  > {
>>>  > public DemoInter create() throws CreateException,RemoteException;
>>>  > }
>>>  >
>>>  > This is Bean class............
>>>  >
>>>  > package My;
>>>  >
>>>  > import java.rmi.*;
>>>  >
>>>  > import javax.ejb.*;
>>>  >
>>>  > public class DemoBean implements SessionBean
>>>  > {
>>>  >          public DemoBean() {
>>>  >                 // TODO Auto-generated constructor stub
>>>  >                            }
>>>  >         public void ejbCreate()
>>>  >         {
>>>  >            System.out.println("ejbCreate()");
>>>  >         }
>>>  >
>>>  >         public void ejbRemove()
>>>  >         {
>>>  >            System.out.println("ejbRemove()");
>>>  >         }
>>>  >
>>>  >
>>>  > public void ejbActivate()
>>>  > {
>>>  >    System.out.println("ejbActivate()");
>>>  > }
>>>  >
>>>  > public void ejbPassivate()
>>>  > {
>>>  >    System.out.println("ejbPassivate()");
>>>  > }
>>>  >
>>>  >
>>>  > public void setSessionContext(SessionContext ctx){}
>>>  >
>>>  >
>>>  > public int add(int a,int b) throws RemoteException
>>>  > {
>>>  > return (a+b);
>>>  > }
>>>  >
>>>  > }
>>>  >
>>>  >
>>>  > open-ejb.xml is where i specified the jndi name
>>>  >
>>>  > <openejb-jar xmlns="http://www.openejb.org/xml/ns/openejb-jar-2.1"
>>>  >             
>>> xmlns:naming="http://geronimo.apache.org/xml/ns/naming-1.1"
>>>  >
>>>  > xmlns:security="http://geronimo.apache.org/xml/ns/security-1.1"
>>>  >   xmlns:sys="http://geronimo.apache.org/xml/ns/deployment-1.1">
>>>  >
>>>  >   <enterprise-beans>
>>>  >     <session>
>>>  >             <ejb-name>Demo</ejb-name>
>>>  >             <jndi-name>org.geronimo.ejbsample.HomeBean</jndi-name>
>>>  >     </session>
>>>  >   </enterprise-beans>
>>>  > </openejb-jar>
>>>  >
>>>  >
>>>  >
>>>  >
>>>  >
>>>  >
>>>  >
>>>  >
>>>  >  and this is my client code...........
>>>  >
>>>  > import java.util.*;
>>>  > import javax.naming.*;
>>>  > import javax.rmi.*;
>>>  > import My.*;
>>>  >
>>>  >
>>>  > public class Client {
>>>  >
>>>  >         /**
>>>  >          * @param args
>>>  >          */
>>>  >         public static void main(String[] args) {
>>>  >                 // TODO Auto-generated method stub
>>>  >                 try {
>>>  >
>>>  >                         Properties properties=new Properties();
>>>  >             properties.setProperty(Context.INITIAL_CONTEXT_FACTORY,
>>>  > "org.apache.openejb.client.RemoteInitialContextFactory");
>>>  >
>>>  >                         properties.setProperty(Context.PROVIDER_URL,
>>>  > "ejbd://localhost:4201" );
>>>  >
>>>  >             Context ctx=new InitialContext(properties);
>>>  >
>>>  >                  My.DemoHome
>>>  > home=(My.DemoHome)ctx.lookup("java:org.geronimo.ejbsample.HomeBean");
>>>  >
>>>  >   My.DemoInter object =home.create();
>>>  >   System.out.println(object.add(12,22));
>>>  >
>>>  > that is my code, everything is ok means deploy successfully but
>>> problem is
>>>  > when i execute client program, that time i get error that is
>>>  >
>>>  > javax.naming.NameNotFoundException: org.geronimo.ejbsample.HomeBean
>>> does
>>>  > not exist in the system.  Check that the app was successfully
>>> deployed.
>>>  > So if anybody know how to resolve this problem then please give me
>>>  > suitable suggestion to resolve this problem..
>>>  >
>>>  >
>>>
>>>  --
>>>  View this message in context:
>>> http://www.nabble.com/how-to-run--Ejb-program-on-geronimo-tp16392851s134p16417878.html
>>>
>>>
>>> Sent from the Apache Geronimo - Users mailing list archive at
>>> Nabble.com.
>>>
>>>
>> 
>> 
> 
> 

-- 
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