Hi,
Could you, please, send us the two XML deployment descriptor files
(standard and JOnAS specific) ?
This will probably help us to understand the problem.
Kind regards.
Hélène.
> Surendra wrote:
>
> Hi,
>
>
> I want to execute a query in CMP(my requirement). I wrote following
> method
>
> private DataSource dataSource = null;
> private Connection getConnection() throws EJBException, SQLException {
>
> if (dataSource == null) {
> //Finds DataSource from JNDI
> Context initialContext = null;
> try {
> initialContext = new InitialContext();
> dataSource =
> (DataSource)initialContext.lookup("java:comp/env/jdbc/StudentID");
> } catch (Exception e) {
> System.out.println("Cannot lookup dataSource " + e);
> throw new javax.ejb.EJBException("Cannot lookup dataSource ");
> }
> }
> return dataSource.getConnection();
> }
>
> But while executing the method i am getting following error Can you
> please tell me what is the reson.
>
> Error
> java.lang.ClassCastException: student.JOnASStuBeanHome
> at student.StudentBean.getConnection(StudentBean.java:59)
> at student.StudentBean.getStudent(StudentBean.java:79)
> at student.StudentBean.ejbCreate(StudentBean.java:39)
> at
> student.JOnASStuBeanBean.ejbCreate(JOnASStuBeanBean.java:60)
> at student.JOnASStuBeanHome.create(JOnASStuBeanHome.java:113)
> at
> student.JOnASStuBeanHome_Skel.send(JOnASStuBeanHome_Skel.java:40)
> at
> org.objectweb.david.libs.protocols.giop.GIOPProtocol$ServerSession_Lo
> w.send(GIOPProtocol.java:621)
> at
> org.objectweb.jonathan.libs.protocols.tcpip.TcpIpProtocol$Session.run
> (TcpIpProtocol.java:396)
> at
> org.objectweb.jonathan.libs.resources.JScheduler$JJob.run(JScheduler.
> java:265)
> System exc. => Rollback the transaction.
> JEntityHome.removeEJBObject: pk = null
> postinvoke: System Exception in a home method:javax.ejb.EJBException:
> Cannot lo
> okup dataSource
>
> Regards
> Surendra
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