Hi,
I understand there is an example on setting up BMP in Tomcat with OpenEJB,
is there an example on CMP? I am using mySQL as the database. I am not sure
how to do it; such as what to write in the Tomcat configuration files (or
if it is necessary?)
Trying out on my own, I setup the database and received the following
exception when i run a servlet that invokes a Container Mananged Bean.
java.rmi.RemoteException: The bean encountered a non-application
exception.; nested exception is:
java.rmi.RemoteException: Attempt to create an entity bean
(DeploymentID="EmployeeBean") that can not be persisted.; nested exception
is:
org.exolab.castor.jdo.ClassNotPersistenceCapableException: The class
org.acme.employee.EmployeeBean is not persistence capable: no mapping was
defined for the class
java.rmi.RemoteException: Attempt to create an entity bean (DeploymentID
="EmployeeBean") that can not be persisted.; nested exception is:
org.exolab.castor.jdo.ClassNotPersistenceCapableException: The class
org.acme.employee.EmployeeBean is not persistence capable: no mapping was
defined for the class
org.exolab.castor.jdo.ClassNotPersistenceCapableException: The class
org.acme.employee.EmployeeBean is not persistence capable: no mapping was
defined for the class
at
org.exolab.castor.jdo.engine.DatabaseImpl.create(DatabaseImpl.java:343)
at
org.openejb.alt.containers.castor_cmp11.CastorCMP11_EntityContainer.createEJBObject(CastorCMP11_EntityContainer.java:821)
at
org.openejb.alt.containers.castor_cmp11.CastorCMP11_EntityContainer.invoke(CastorCMP11_EntityContainer.java:521)
at
org.openejb.core.ivm.EjbHomeProxyHandler.create(EjbHomeProxyHandler.java:244)
at org.openejb.core.ivm.EjbHomeProxyHandler.
_invoke(EjbHomeProxyHandler.java:160)
at
org.openejb.core.ivm.BaseEjbProxyHandler.invoke(BaseEjbProxyHandler.java:308)
at
org.openejb.util.proxy.Jdk13InvocationHandler.invoke(Jdk13InvocationHandler.java:89)
at $Proxy16.create(Unknown Source)
at EmployeeClientServlet.doGet(EmployeeClientServlet.java:60)
This is the servlet that i run :
import org.acme.employee.*;
import javax.naming.Context;
import javax.naming.InitialContext;
import javax.rmi.PortableRemoteObject;
import java.util.Properties;
import javax.servlet.http.*;
import javax.naming.*;
import java.io.PrintWriter;
import java.io.IOException;
import javax.servlet.ServletException;
public class EmployeeClientServlet extends HttpServlet
{
String factory = "org.openejb.client.LocalInitialContextFactory";
public void doGet(HttpServletRequest request, HttpServletResponse
response)
throws IOException, ServletException
{
PrintWriter out = response.getWriter();
response.setContentType("text/html");
try{
Properties env = new Properties();
String jndiProvider
= "org.openejb.client.LocalInitialContextFactory";
env.put( "java.naming.factory.initial", jndiProvider );
env.put( "java.naming.provider.url", "localhost:8080" );
env.put( "java.naming.security.principal", "root" );
env.put( "java.naming.security.credentials", "admin" );
Context ctx = new InitialContext( env );
Object obj = ctx.lookup( "EmployeeBean" );
obj = PortableRemoteObject.narrow( obj, EmployeeHome.class );
EmployeeHome home = ( EmployeeHome ) obj;
Employee empl_create = home.create( "David", "Owen",
"OpenEJB-" + System.currentTimeMillis() + "@SF.net" );
Integer primaryKey = ( Integer ) empl_create.getPrimaryKey();
Employee empl_find = home.findByPrimaryKey( primaryKey );
response.setContentType("text/html");
//The part we've all been wainting for...
out.println("<html>");
out.println("<body>");
out.println("<head>");
out.println("<title>Hello World!</title>");
out.println("</head>");
out.println("<h1>"+ "Are the \"create\" and \"find\" users identical
? "+
empl_create.isIdentical( empl_find ) +"</h1>");
out.println("</body>");
out.println("</html>");
}
catch (Exception e){
response.setContentType("text/plain");
e.printStackTrace(out);
}
}
}
What could be the possible errors? Is there any configuration file(s) that
i have neglected to write? Could someone please help?
Thank you.
regards,
Sean
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