Re: [JBoss-user] CMP and remote interfaces. USing ejbSelects within remote finders.

[<Dav...@na...>]

Entity Beans can have both remote and local interfaces, that's not a 
problem.

Finders and select methods are two totally different things.  Secion 
10.5.7 of the spec states that the bean class itself is where select 
methods reside, not the home interface.

If you just want a MyBeanHome.findByPrimaryKeyAscending(), you just need 
to declare the finder. EJB-QL doesn't have an ORDER BY clause, so I assume 
you're using JBossQL?

Dave





<Mar...@cs...>
Sent by: jbo...@li...
06/10/2003 10:51 AM
Please respond to jboss-user
 
        To:     <jbo...@li...>
        cc: 
        Subject:        [JBoss-user] CMP and remote interfaces. USing 
ejbSelects within remote finders.


Hi folks,
           I've just encountered a small problem concerning the 
implementation of a method that returns the entity instance with the 
greatest id.
 
ejbHomeRetrieveByMaxId().
 
Basically my entity bean only has a remote interface at the minute which 
is proving to be the problem. I was using an ejbSelect method to 
retrieve all the instances of the entity bean, ascendingly ordered by the 
primary key (a long primitive).
If I'm correct and please set me straight if I'm not, the ejbSelect method 
doesn't actually return a set of localHome objects but instead returns a 
set 
containing all the primaryKeys for all the entities.
 
By this logic then if I retrieve the long value of the first element in 
the set then I'll have the max id. By returning this value in the remote 
call shouldn't 
the container interrupt the call take the primary key value and then 
return the remote EJBObject corresponding to this primary key? 
 
I'm not sure how feasible it sounds but what I'm wondering is whether or 
not there's a restriction on implementations of remote finder methods 
using 
ejbSelect methods?
 
Is it incorrect practice for an entity bean to have both a remote and 
local set of interfaces?
Is the container able to distinguish when to return the appropriate 
interface? 
 
Am I going about this the wrong way altogether? 
 
Thanks,
Mark.