BTW have you been able to run the examples with a database other then
InstandDB/Hypersonic SQL ? ?
Because this is where i am really stuck !!
pranab wrote:
> Ken,
> Here is the code which worked for me.
> package com.ebd.ejb;
>
> import com.ebd.ejb.CabinHome;
> import com.ebd.ejb.Cabin;
> import com.ebd.ejb.CabinPK;
>
> import javax.naming.InitialContext;
> import javax.naming.Context;
> import javax.naming.NamingException;
> import java.rmi.RemoteException;
> import javax.rmi.PortableRemoteObject;
> import java.util.Properties;
> import javax.ejb.CreateException;
>
> public class CabinSessionClient
> {
>
> public static int SHIP_ID = 2;
> public static int BED_COUNT = 3;
>
> public static void main(String [] args)
> {
> try
> {
> Context jndiContext = getInitialContext();
> Object ref = (TravelAgentHome)
> jndiContext.lookup("TravelAgentBean");
> TravelAgentHome home = (TravelAgentHome)
> PortableRemoteObject.narrow(ref,TravelAgentHome.class);
> TravelAgent reserve = (TravelAgent) home.create();
> String [] list = reserve.listCabins(SHIP_ID,BED_COUNT);
> System.out.println("Results ="+list.length);
> for(int i=0;i<list.length;i++)
> {
> System.out.println(list[i]);
> }
> }
> catch(java.rmi.RemoteException re)
> {
> re.printStackTrace();
> }
> catch( Throwable t)
> {
> t.printStackTrace();
> }
> }
> public static Context getInitialContext() throws
> javax.naming.NamingException
> {
> Properties p = new Properties();
>
> p.put(Context.INITIAL_CONTEXT_FACTORY,"org.jnp.interfaces.NamingContextFactory");
> p.put(Context.PROVIDER_URL,"localhost");
> p.put(Context.URL_PKG_PREFIXES, "org.jboss.naming");
> System.setProperty("java.naming.factory.initial",
> "org.jnp.interfaces.NamingContextFactory");
> System.setProperty("java.naming.provider.url",
> "localhost:1099");
> Context ctx = new javax.naming.InitialContext();
> return ctx;
> }
> }
>
> Ken Jenks wrote:
> >
> > Not there yet.
> >
> > This command:
> >
> > java -classpath
> > /usr/local/jboss/lib/ext/ejb.jar:/usr/local/jboss/client/jnp-client.jar:/usr
> > /local/jboss/client/jboss-client.jar:. com.titan.travelagent.jBossClient_1
> >
> > ...gives this error:
> >
> > java.rmi.ServerException: RemoteException occurred in server thread; nested
> > exception is:
> > java.rmi.ServerException: Exception occurred; nested exception is:
> > javax.ejb.EJBException
> > java.rmi.ServerException: Exception occurred; nested exception is:
> > javax.ejb.EJBException
> > javax.ejb.EJBException
> > at
> > sun.rmi.transport.StreamRemoteCall.exceptionReceivedFromServer(Stream
> > RemoteCall.java:245)
> > at
> > sun.rmi.transport.StreamRemoteCall.executeCall(StreamRemoteCall.java:220)
> > at sun.rmi.server.UnicastRef.invoke(UnicastRef.java:122)
> > at
> > org.jboss.ejb.plugins.jrmp.server.JRMPContainerInvoker_Stub.invoke(Un
> > known Source)
> > at
> > org.jboss.ejb.plugins.jrmp.interfaces.StatelessSessionProxy.invoke(St
> > atelessSessionProxy.java:87)
> > at $Proxy1.listCabins(Unknown Source)
> > at com.titan.travelagent.jBossClient_1.main(jBossClient_1.java:48)
> >
> > Here's the client listing, jBossClient_1.java:
> >
> > package com.titan.travelagent;
> >
> > import com.titan.cabin.CabinHome;
> > import com.titan.cabin.Cabin;
> > import com.titan.cabin.CabinPK;
> >
> > import javax.naming.InitialContext;
> > import javax.naming.Context;
> > import javax.naming.NamingException;
> > import javax.ejb.CreateException;
> > import java.rmi.RemoteException;
> > import java.util.Properties;
> >
> > public class jBossClient_1 {
> > public static int SHIP_ID = 1;
> > public static int BED_COUNT = 3;
> >
> > public static void main(String [] args){
> > try {
> > /* COMMENTED OUT FOR jBoss
> > Context jndiContext = getInitialContext();
> > Object obj = jndiContext.lookup("ejb/TravelAgentHome");
> > COMMENTED OUT FOR jBoss */
> >
> > /* BEGIN SECTION ADDED FOR jBoss */
> > // Set up the naming provider; this may not always be necessary,
> > depending
> >
> > // on how your Java system is configured.
> > System.setProperty("java.naming.factory.initial",
> > "org.jnp.interfaces.NamingContextFactory");
> > System.setProperty("java.naming.provider.url",
> > "localhost:1099");
> >
> > // Get a naming context
> > InitialContext jndiContext = new InitialContext();
> >
> > // Get a reference to the TravelAgentBean
> > Object obj = jndiContext.lookup("TravelAgentBean");
> >
> > // Get a reference from this to the Bean's Home interface
> >
> > /* END SECTION ADDED FOR jBoss */
> >
> > TravelAgentHome home = (TravelAgentHome)
> > javax.rmi.PortableRemoteObject.narrow(obj, TravelAgentHome.class);
> >
> > TravelAgent reserve = home.create();
> >
> > // Get a list of all cabins on ship 1 with a bed count of 3.
> > String list [] = reserve.listCabins(SHIP_ID,BED_COUNT); // LINE 48 HERE!
> >
> > for(int i = 0; i < list.length; i++){
> > System.out.println(list[i]);
> > }
> >
> > } catch(java.rmi.RemoteException re){re.printStackTrace();}
> > catch(Throwable t){t.printStackTrace();}
> > }
> > static public Context getInitialContext() throws Exception {
> > Properties p = new Properties();
> > // ... Specify the JNDI properties specific to the vendor.
> > return new InitialContext();
> > }
> > }
> >
> > So the client compiles and runs, but after it creates the connection with
> > home.create() (which succeeds), the next call to the bean,
> > String list [] = reserve.listCabins(SHIP_ID,BED_COUNT); // LINE 48 HERE!
> > fails.
> >
> > It seems strange to lookup TravelAgentBean to get the home interface. Maybe
> > that's my problem.
> >
> > Any suggestions?
> >
> > -- Ken Jenks, http://abiblion.com/
> >
> > Tools for reading.
> >
> > --
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