Thanks for help but this is not problem that is when i run my client
program that time i get error.......
java.lang.ClassCastException: $Proxy0 cannot be cast to
My.DemoInter
Actually sir i have already mentioned interfaces,bean class and my client
and xml. so please check that code and tell me what i am doing wrong.
Actually sir i had spent already three days to run one simple ejb program i
think geronimo server is not good for ejb.
please help me to give suitable response..........
vhnguy2 wrote:
>
> Hi Atul,
>
> It looks like you're doing a remote lookup. I think your client code
> should look something similar to
>
> My.DemoInter remoteObj =(My.DemoInter)ctx.lookup(<jndi for remote
> interface>);
>
> Let me know if this works.
>
> Thanks,
> Viet
>
>
> On Wed, Apr 2, 2008 at 4:12 AM, atul12345 <[EMAIL PROTECTED]> wrote:
>>
>>
>>
>> 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 <[EMAIL PROTECTED]>
>> 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.
>> >>>
>> >>>
>> >>
>> >>
>> >
>> >
>>
>> --
>> View this message in context:
>> http://www.nabble.com/how-to-run--Ejb-program-on-geronimo-tp16392851s134p16444488.html
>>
>>
>> Sent from the Apache Geronimo - Users mailing list archive at Nabble.com.
>>
>>
>
>
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