I am developing a Reservation System in J2EE . Following the MVC Model
2 Architecture.
I have 20 JSP pages with me . My starting page is the login page
LOGIN.JSP, and then only the user is taken to the Home.JSP (if

I´m using JBoss 4.0sp1 and J2EE 1.4. I have a Servlet who creates a
Session Bean ant this SB creates other Entity Bean.
The Servlet creates perfectly the Session Bean. But the SB cannot
create the Entity Bean because it doesn't find in the context.

I have wrote EJBs,and deployed it to the weblogic server,how can I know it
is better than than implemented with servlets.I really want to know whether
EJBs  is what I wanted.Thanks.

How can I make a global/environment variable declared in my descriptor
available to all my beans? I know in the web descriptor you can declare
variables that are available to all servlets, but I can't find that for
ejb's.

I'm looking for an open source (i.e. free) XDoclet plugin for eclipse.
Googled a few times, but nothing useful turned up yet (quite
suprisingly). Any one knows of such a plug-in?.
MTIA

In designing a J2EE application, is it possible to let your beans
delegate to "conforming" POJOs - (meaning they don't do any file I/O,
listening on sockets, spawn threads etc) - the idea is that so that I
can have my session beans, servlets (possibly MDBs) and a non J2EE

Hi I'm working on a ejb application which has a database table to store
files as 'bytea' datatype in a postgres database.
My first try was to read the files into a byte[] on the client and call the
setData(byte[] b) method on the written entity bean. This works great for

Hi I have an EJB design question. I am developing a J2EE application
that receives a continuous stream of data from a simulation. I have a
class (not yet converted into a servlet - hence this question) that will
provide statistical analysis of the simulated data. The class has ...

How would I BEST implement the following in EJB?
In RDBMS I might have Customers all with many types of Addresses. That
relationship could be modeled by:
CustomerTable --> CustomerAddressesLinkTable <--AddressTable

I have a ProductBean which is the super class of BookBean, ClothesBean
and I want to create a find method like:
[CODE]public ProductRemote findAllInCategory(Integer categoryID) throws
FinderException, RemoteException;[/CODE]

OK, I have a BookBean that contains a collection of ChapterBeans. Now
when
you call BookHome.create(...), in ejbPostCreate, it does the following:
[code]

hi..
I am developing a Lab management software.
Our lab includes certain resources like Switches and routers . We just
want to keep track that who all people have reserverd the resources and