Phani, I don't want to discourage you, but what you're doing is not quite right...
There are 3099 subscribers to this list, most of whom have taken the trouble of at least reading the spec carefully and also some other widely available literature. It is not a how-to list. Nobody here is supposed to help you with every step of the way. If every time you have a problem(looks like every 5 minutes) you'll be posting to the list, 3099 people are going to receive your message. 3099 people are going to have to open, read, and delete your message. Their time is just as valuable as yours, don't you think? And most won't care about it. So please, try to keep at least some of your posts private, only contacting those that are helping you. I know it's difficult when you're starting with EJBs. I hope you come thru it soon. But there is no need to hassle everybody else on this list during the process, wouldn't you agree? If everybody in the list posted a mail with every single compilation error they have, the list would be as useful as if it never existed. I'll be available to help, but only thru private mail. Please don't post publicly every 5 minutes or everytime you get a compiler/runtime error. Thanks in advance, Juan Pablo Lorandi Chief Software Architect Code Foundry Ltd. [EMAIL PROTECTED] Barberstown, Straffan, Co. Kildare, Ireland. Tel: +353-1-6012050 Fax: +353-1-6012051 Mobile: +353-86-2157900 www.codefoundry.com > -----Original Message----- > From: A mailing list for Enterprise JavaBeans development > [mailto:[EMAIL PROTECTED]] On Behalf Of phani > Sent: Wednesday, May 24, 2000 11:39 AM > To: [EMAIL PROTECTED] > Subject: Re: Need some examples > > > hi, > I created another method ejbFindByUserName(String aKey){} > but no luck... it is throwing a jit error... and retruns 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.T3Initial > ContextFactory > > > "); > > > 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=vellosco > uk-21&placemen > > > > > t=home_multi.gif&site=amazon > > > > > > > > > > > > > > > > > > ============================================================== > ============= > > > > > 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 > > > 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". > > > > > > > > > > > > http://www.amazon.co.uk/exec/obidos/redirect-home?tag=vellosco uk-21&placemen t=home_multi.gif&site=amazon ======================================================================== === 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 body of the message "signoff EJB-INTEREST". For general help, send email to [EMAIL PROTECTED] and include in the body of the message "help".
