Home | Contact Us | FAQ | Search & Site Map | Link to Us
Sign In | Join | Other 45 Sites in Network
HomeAnnouncementsWhite Papers
Discussion GroupsFirst AidDatabasesJavaBeansGUIJava 3DVirtual MachineCORBASecurityToolsGeneral
Java DirectoryOpen Source ProjectsSample Book ChaptersUser GroupsWeb Resources
Related Topics
Databases.NETMore Topics ...

Java Forum / General / September 2006

Tip: Looking for answers? Try searching our database.

Staless Session EJB and DAO

Thread view: 
JimmyD - 14 Sep 2006 19:36 GMT
Hello,

I'm using stateless session EJB which uses DAO class for data manipulating.
The question is should I get DB Connection object from EJB and give it for
DAO
class to be used or is it better idea that DAO class would open Connection
object itself and
use it for data manipulating in database?

Or does it matter which one is getting the Connection object?

I read somewhere that EJB's passivate and activate method should close nad
repeopen
Connection when those methods are called.

So, which one is better place to open Connection from Datasource EJB or DAO?

Cheers!
LuckyBoy - 15 Sep 2006 03:55 GMT
AFAIK: The DAO should handle the Database Connections and the EJB
should handle the Business Logic.
Lalit - 15 Sep 2006 16:33 GMT
> AFAIK: The DAO should handle the Database Connections and the EJB
> should handle the Business Logic.

The meaning of DAO is Data Access Object. This object is used to
seperate out your data access logic from the Business Logic. All the
Data Base transactions should be handled in DAO only. It's not a hard
and fast rule but it helps to make your design more structured and easy
to maintain.


Free Magazines

Get these publications absolutely FREE for up to 12 months. There are no hidden fees and no obligation. Simply choose a title, complete the application form and submit it. Read more ...

Oracle MagazineNetwork ComputingComputer WorldBio-IT WorldeWeekInformation WeekInfosecurity
 
Sign In
Join
My Latest Posts
My Monitored Threads
My Blog
My Photo Gallery
My Profile
My Homepage

Start New Thread
Enable EMail Alerts
Rate this Thread



©2008 Advenet LLC   Privacy Policy - Terms of Use
This website includes both content owned or controlled by Advenet as well as content owned or controlled by third parties.