[jboss-user] [EJB 3.0] - @EJB annotation for injection and lazy relations
Nicolas Tanghe
do-not-reply at jboss.com
Wed Sep 15 06:02:22 EDT 2010
Nicolas Tanghe [http://community.jboss.org/people/ntanghe] created the discussion
"@EJB annotation for injection and lazy relations"
To view the discussion, visit: http://community.jboss.org/message/561743#561743
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Hi,
I develop a ejb3/jsf application.
I have lazy relations in my entity beans.
I remark that in my managed bean of my JSF, if I use @EJB annotation to inject session bean, I have no problem on lazy on entity beans returned by this session bean.
Example
JsfManageBean{
@EJB
Bean sessionBean ...
public void doSomething(){
Department d = sessionBean.findDepartmentBy...
// relation lazy
d.getEmployees()
-> Load of employees -> NO LAZY PROBLEM !
}
}
Someone can explain me why it works ?
For me, after the find method, my session is closed !
If I do a lookup to find my session bean (and so no injection @EJB here) -> I HAVE THE LAZY PROBLEM !
public void doSomething(){
SessionBean = ... context.lookup("blablabla")
Department d = sessionBean.findDepartmentBy...
// relation lazy
d.getEmployee()
-> LAZY EXCEPTION
thanks for help !
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