how to get principal from Entity

[apdo]

I know the more accepted pattern is to not have logic into the entity. However I am performing the migration of an application from EJB2 to EJB3 where there is logic into the entities.

In my old entity bean (not session bean), I have code that call getCallerPrincipal from the EntityContext. I have tried, using @Resource, to inject EntityContext but I got a null value. Is there a way to access the callerPrincipal from entity in EJB3.

Thank you very much for your help,

An Phong Do

[rwiesemann]

Hi,
i have a similar requirement to lookup the caller principal in an entity bean.

Have you got (or found) a solution?

Thanks

Roland Wiesemann

[wolfgangknauf]

Hi Roland,

I think that "EntityContext" is EJB2 and no longer supported in EJB3. You can get this information from the SessionContext in a SessionBean:

@Resource()
private SessionContext sessionContext = null;

public void someSessionBeanMethod()
{
 Principal principal = this.sessionContext.getCallerPrincipal();
 ...
}

Or maybe you could follow this post: http://www.jboss.org/index.html?module=bb&op=viewtopic&p=3968882
It seems that you can use entity callbacks like "@PreUpdate" and use the class "org.jboss.security.SecurityAssociation" to get the Principal:

@PreUpdate
private void someMethod()
{
 Principal principal = SecurityAssociation.getPrincipal();
 ...
}

Hope this helps

Wolfgang