Hello,
sorry if this FAQ, i have searched with no satifised result, probaly wrong search words..
I use JBoss 4.0 and ejb 2 and cmp.
I have two entities Project (classes: ProjectLocal, ProjectLocalHome, ProjectEJB) and User (classes: UserLocal, UserLocalHome, UserEJB). The one to many releationsship between both is "project has responsible user".
Modelling all with local interface is no problem an works fine. I have added
public abstract UserLocal getResponsible();
public abstract void setResponsible(UserLocal user);
to the local interface ProjectLocal.
Here is an extract of my ejb-jar.xml
<relationships>
<ejb-relation>
<ejb-relation-name>Project-User</ejb-relation-name>
<ejb-relationship-role>
<ejb-relationship-role-name>project-has-responsible-user</ejb-relationship-role-name>
<multiplicity>Many</multiplicity>
<relationship-role-source>
<ejb-name>ProjectEJB</ejb-name>
</relationship-role-source>
<cmr-field>
<cmr-field-name>responsible</cmr-field-name>
</cmr-field>
</ejb-relationship-role>
<ejb-relationship-role>
<ejb-relationship-role-name>user-is-responsible-for-project</ejb-relationship-role-name>
<multiplicity>One</multiplicity>
<relationship-role-source>
<ejb-name>UserEJB</ejb-name>
</relationship-role-source>
</ejb-relationship-role>
</ejb-relation>
</relationships>
No problem at all. Works fine.
Now i added for both entities a remote interface and home. Opps? What should i do with the cmr-field
reponsible. I can't change the return type of the function
getResponsible.
Should i duplicate all the stuff and added a new cmr-field
responsible? I don't think so, but how could i handle this? Is there a design pattern or an example?
If you need more code, please give me a hint.
Thanks in advance,
Lars.
