🚀 go-pugleaf

ZalekBloom@hotmail.com wrote:
> I am just learning EJB. It says EJB has 2 interfaces - home and
> component interface - but don't see where this interfaces are
> implemented. A book example (EJB in 21 days) shows a code how a client
> looks for interface using JNDI - but how this home interface was
> instantiented?

I never had any luck with the "in 21 days" series.  Could be more 
specific about your question?  According to Sun's tutorial, it's just a 
regular old Java class.

   import javax.ejb.EntityBean;

   public class CustomerBean
                implements EntityBean {
   //...
   }

<http://java.sun.com/developer/onlineTraining/EJBIntro/EJBIntro.html>

But with out a little more knowledge about what your doing it's kinda 
hard to fill in details.  I assume that the compiled bean class is then 
deployed to the EJB Container somehow.

On Nov 1, 9:22 pm, Mark Space <marksp...@sbcglobal.net> wrote:
> ZalekBl...@hotmail.com wrote:
> > I am just learning EJB. It says EJB has 2 interfaces - home and
> > component interface - but don't see where this interfaces are
> > implemented. A book example (EJB in 21 days) shows a code how a client
> > looks for interface using JNDI - but how this home interface was
> > instantiented?
>
> I never had any luck with the "in 21 days" series.  Could be more
> specific about your question?  According to Sun's tutorial, it's just a
> regular old Java class.
>
>    import javax.ejb.EntityBean;
>
>    public class CustomerBean
>                 implements EntityBean {
>    //...
>    }
>
> <http://java.sun.com/developer/onlineTraining/EJBIntro/EJBIntro.html>
>
> But with out a little more knowledge about what your doing it's kinda
> hard to fill in details.  I assume that the compiled bean class is then
> deployed to the EJB Container somehow.

Well - as I understand EJB is more complicated - a client cannot
access directly EJB - first it used a home interface to create EJB and
then using component interface is using method defined in EJB.
What I don't understand - how those interfaces are instantiatiented.

I wrote a JSP/java web servlet and want to convert it to EJB. The
servlet is very simple - it updates/inserts/shows a database.

Zalek