Hi,
I created another method ejbFindByUserName(String aKey){}
but no luck..... it is throwing a JIT error and returns null only
Thanks for help
phani
----- Original Message -----
From: <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Monday, June 24, 2002 3:18 PM
Subject: Re: Need some examples
>
> Create a new find by method:
> findByUsername(String username)
> The find by primaryKey is used by the container I think
>
> > from: phani <[EMAIL PROTECTED]>
> > date: Mon, 24 Jun 2002 09:57:47
> > to: [EMAIL PROTECTED]
> > subject: Re: Need some examples
> >
> > Hi,
> > I got the primary key class concept....
> > If i have written a primary key class then i will use that class or i
can
> > use defalt java.lang.string class as primary key class ... right?
> >
> > Now my problem is i have a login table with two fields user_id and
password.
> > I am using Oracle8i DB and i am using BMP.
> >
> > I want to get the password from client by entering user_id.
> >
> > I coded Entity.java(Remote) EntityHome.java(Home) and
EnitytEJB.java(Bean)
> > and EnityClient.java (Client)
> >
> > But Client returning null value...
> >
> >
> > -----------
> > Entity.java
> >
> > import java.rmi.RemoteException;
> > import javax.ejb.EJBObject;
> > public interface Entity extends EJBObject {
> > String getPassword()throws RemoteException;
> > }
> > ----------------
> > EntityHome.java
> >
> > import java.rmi.RemoteException;
> >
> > import javax.ejb.CreateException;
> > import javax.ejb.EJBHome;
> > import javax.ejb.FinderException;
> > public interface EntityHome extends EJBHome {
> > public Entity findByPrimaryKey(String aKey)
> > throws RemoteException, FinderException;
> > }
> > -----------
> > EntityEJB.java
> >
> > import javax.ejb.CreateException;
> > import javax.ejb.EntityBean;
> > import javax.ejb.EntityContext;
> > import javax.ejb.FinderException;
> > import java.sql.*;
> >
> > public class EntityEJB implements EntityBean {
> >
> > /**
> > * No argument constructor required by container.
> > */
> > private EntityContext ctx;
> > public String password;
> > public EntityEJB() {
> > }
> >
> > /**
> > * Reference EJB specification 1.1 section 9.2.5
> > */
> > public String ejbFindByPrimaryKey(String aKey)
> >
> > Connection con=null;
> > PreparedStatement ps=null;
> > ResultSet rs=null;
> > String password=null;
> > try{
> > Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
> >
> > con=DriverManager.getConnection("jdbc:odbc:vqi","system","manager");
> > }catch(Exception e){System.out.println(e);}
> > try{
> > ps=con.prepareStatement("select password from system.login where
> > user_id=?");
> > ps.setString(1,aKey.trim());
> > rs=ps.executeQuery();
> > while(rs.next())
> > {
> > password=rs.getString("password");
> > System.out.println(password);//it is printing the password
> > }
> > con.close();
> > }catch(Exception e){System.out.println(e);}
> > return aKey;
> > }
> >
> > /* Methods required for EntityBean interface. EJB 1.1 section 9.4 */
> >
> > /**
> > * @see javax.ejb.EntityBean#ejbActivate()
> > */
> > public void setEntityContext(EntityContext context){
> > this.ctx=context;
> > }
> >
> > /**
> > * @see javax.ejb.EntityBean#unsetEntityContext()
> > */
> > public void unsetEntityContext(){
> >
> > }
> >
> > /**
> > * @see javax.ejb.EntityBean#ejbActivate()
> > */
> > public void ejbActivate() {
> > }
> >
> > /**
> > * @see javax.ejb.EntityBean#ejbPassivate()
> > */
> > public void ejbPassivate() {
> > }
> >
> > /**
> > * @see javax.ejb.EntityBean#ejbLoad()
> > */
> > public void ejbLoad() {
> > }
> >
> > /**
> > * @see javax.ejb.EntityBean#ejbStore()
> > */
> > public void ejbStore() {
> > }
> >
> > /**
> > * @see javax.ejb.EntityBean#ejbRemove()
> > */
> > public void ejbRemove() {
> > }
> >
> > public java.lang.String getPassword() {
> > System.out.println(password);
> > return password;
> > }
> >
> > }
> > ----------
> > EnityClient
> > import javax.naming.*;
> > import java.util.*;
> > public class EntityClient
> > {
> > public static void main(String args[])
> > throws Exception
> > {try{
> > System.out.println(" Please wait....");
> > Properties p=new Properties();
> >
> >
p.put(Context.INITIAL_CONTEXT_FACTORY,"weblogic.jndi.T3InitialContextFactory
> > ");
> > p.put(Context.PROVIDER_URL,"t3://localhost:7001");
> > Context ctx=new InitialContext(p);
> > EntityHome h=(EntityHome)ctx.lookup("bmpBean");
> > Entity robj=h.findByPrimaryKey("phani");
> > System.out.println(robj.getPassword());
> > }catch(Exception e){System.out.println(e);}
> > } // main
> > } // end of EmpClient
> >
> > Can some one tell me where i went wrong?
> > I have major doubt regarding to my findbyprimarykey() method
overiding.....
> > what i have done was right?
> >
> > Can some one point me in right direction?
> >
> > Thanks in advance
> > phani
> >
> > ----- Original Message -----
> > From: Ashwani Kalra <[EMAIL PROTECTED]>
> > To: <[EMAIL PROTECTED]>
> > Sent: Monday, June 24, 2002 1:42 PM
> > Subject: Re: Need some examples
> >
> >
> > > You need primary key class when there are more than one
field(composite
> > > key). Check your deployment descriptor. For the <prim-key-class>
element.
> > > ----- Original Message -----
> > > From: "phani" <[EMAIL PROTECTED]>
> > > To: <[EMAIL PROTECTED]>
> > > Sent: Monday, June 24, 2002 1:35 PM
> > > Subject: Re: Need some examples
> > >
> > >
> > > > Hi vellosa,
> > > > Thanks for the info.
> > > >
> > > > I checked the sample dir. But I have read that the entity bean must
> > > require
> > > > an Primary key class.
> > > > But i don't find any primary key class in the
> > > > samples/examples/ejb/basic/beanManaged
> > > > I have account.java(Remote) accountHome.java(Home)
accountBean.java(EJB)
> > > and
> > > > client.java but where is Primary Key class.
> > > >
> > > > Thanks for the help
> > > > phani
> > > >
> > > > ----- Original Message -----
> > > > From: <[EMAIL PROTECTED]>
> > > > To: <[EMAIL PROTECTED]>; <[EMAIL PROTECTED]>
> > > > Sent: Monday, June 24, 2002 1:24 PM
> > > > Subject: Re: Need some examples
> > > >
> > > >
> > > > > Hi Phani,
> > > > >
> > > > > I am using WebLogic 6.1 and there in the directory:
> > > > >
> > > > > C:\bea\wlserver6.1\samples\examples
> > > > >
> > > > > I have a whole set of examples for everything you could ever need
to
> > do
> > > on
> > > > WebLogic, well quite a bit anyway. There are examples of EJB 1.1 and
2.0
> > > > BMP, CMP and even Message Driven Beans. I'm sure you must have
something
> > > > similar under your 6.0 instalation?
> > > > >
> > > > > Regards
> > > > > IV
> > > > >
> > > > >
> > > > >
> > > > > > from: phani <[EMAIL PROTECTED]>
> > > > > > date: Mon, 24 Jun 2002 08:41:58
> > > > > > to: [EMAIL PROTECTED]
> > > > > > subject: Re: Need some examples
> > > > > >
> > > > > > Hi,
> > > > > > I am new bie to ejb and i am messed with deploying entity
beans on
> > > > WL6.0
> > > > > >
> > > > > > I need some basic examples for entity beans (both cmp and
bmp)
> > > > specific to weblogic 6.0 so that i can deploy and run without any
> > > > modifications.
> > > > > >
> > > > > > Are there any examples available with WL6.0 specific xml files?
> > > > > > I searched the web but no luck.
> > > > > >
> > > > > > Thanks for any help
> > > > > > phani
> > > > > >
> > > > > >
> > > > > >
> > > > >
> > > > >
> > > > >
> > > > >
> > > >
> > >
> >
http://www.amazon.co.uk/exec/obidos/redirect-home?tag=velloscouk-21&placemen
> > > > t=home_multi.gif&site=amazon
> > > >
> > > >
> > >
> >
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> > > body
> > > > of the message "signoff EJB-INTEREST". For general help, send email
to
> > > > [EMAIL PROTECTED] and include in the body of the message "help".
> > > >
> > >
> > >
> >
===========================================================================
> > > To unsubscribe, send email to [EMAIL PROTECTED] and include in the
> > body
> > > of the message "signoff EJB-INTEREST". For general help, send email
to
> > > [EMAIL PROTECTED] and include in the body of the message "help".
> >
> >
===========================================================================
> > To unsubscribe, send email to [EMAIL PROTECTED] and include in the
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> > of the message "signoff EJB-INTEREST". For general help, send email to
> > [EMAIL PROTECTED] and include in the body of the message "help".
> >
>
>
>
>
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t=home_multi.gif&site=amazon
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