Hi, It's your decision whether to load dao artifacts from classloader, or by uid from jar/os dir, anyhow I think you should divide between the entire artifacts hierarchy And manufacture one per each env - ejb, web.
Hofri -----Original Message----- From: janne mattila [mailto:[EMAIL PROTECTED] Sent: Tuesday, June 05, 2007 3:22 PM To: [email protected] Subject: RE: TransactionManager config for simultaneous EXTERNAL and JDBC transactions Hi, - unified classloader: I am not sure what you are talking about. Application is packed inside ear archive, DAO classes are inside a utility jar which is referenced from MANIFEST.MF by both ejb JAR and web app WAR. I would guess this means that DAO classes are loaded only once(?) - WebLogic 8.1 - iBatis 2.1.7 (unfortunately updating this is not easy) Hofri Yehuda kirjoitti 05.06.2007 kello 15:14: > Hi Janne, > * Are you using a unified classloader ? > * which application server are you using ? > * which iBatis version are you using ? > > Hofri > > > -----Original Message----- > From: janne mattila [mailto:[EMAIL PROTECTED] > Sent: Tuesday, June 05, 2007 3:11 PM > To: [email protected] > Subject: TransactionManager config for simultaneous EXTERNAL and JDBC > transactions > > I am implementing a system which has a number of iBatis DAOs that are > used both by EJB clients and basic web application code. > > Architecture will be like > > (EJB) > (JSPs/Actions etc) > | > | > | > (business logic layer) > | > | > | > (DAOs) > > EJBs use container managed transactions, and hence I should use > EXTERNAL transaction manager. > > Web application code should use basic iBatis JNDI/SIMPLE transaction > manager and transactions are demarcated on the business logic layer > using > daoManager.startTransaction() etc. > > Both "business logic clients" (EJB & web app code) should use the same > business logic methods (which use the same DAO code). I understand I > can use the same business logic layer for both, since for example > daoManager.commitTransaction() will not do anything if EXTERNAL > transactions are configured? > > How should iBatis configuration be done??? Do I have to have separate > dao1.xml and dao2.xml files and build separate DaoManager instances > for the EJB clients and the web app clients? > > Anything specific that I need to worry about using this approach? > > ................................................................... > Luukku Plus paketilla pääset eroon tila- ja turvallisuusongelmista. > Hanki Luukku Plus ja helpotat elämääsi. http://www.mtv3.fi/luukku ................................................................... Luukku Plus paketilla pääset eroon tila- ja turvallisuusongelmista. Hanki Luukku Plus ja helpotat elämääsi. http://www.mtv3.fi/luukku
