Hi all,
I'm trying to get my Value-Object pattern based application to work.
So far I have not been succesful. I hope you guys can help me, or push me
into the right direction.
I have two classes. Advertisement and Correction which relate like this:
+-------------+ +----------+
|Advertisement|-1-----------------*->|Correction|
+-------------+ +----------+
So an Advertisement can have zero or more Corrections (1:N).
In my Advertisement CMP bean I coded:
-----------------------------------------------------------------
* @ejb.ejb-ref
* ejb-name = "Correction"
* @ejb.value-object
* name = "Advertisement"
* match = "*"
*/
public abstract class AdvertisementEJB implements EntityBean {
// etc....
/**
* @ejb.interface-method view-type="local"
*
* @ejb.relation
* name="Advertisement-Correction"
* role-name="Advertisement-has-many-Corrections"
* target-cascade-delete="yes"
* target-ejb="Correction"
* target-role-name="Correction-belongs-to-Advertisement"
* target-multiple="no"
* @jboss.relation-mapping style="foreign-key"
* @jboss.target-relation
* fk-constraint="false"
* fk-column="serial"
* related-pk-field="serial"
* @ejb.value-object
*
aggregate="ordermanager.advertisement.valueobjects.CorrectionValue"
* aggregate-name="CorrectionValue"
* members="ordermanager.advertisement.ejb.CorrectionLocal"
* members-name="CorrectionValue"
* relation="external"
* type="Collection"
*/
public abstract Collection getCorrections();
public abstract void setCorrections(Collection corrections);
------------------------------------------------------------------
In my Correction CMP bean, I coded:
------------------------------------------------------------------
* @ejb.value-object
* name = "Correction"
* match = "*"
*/
public abstract class CorrectionEJB implements EntityBean {
------------------------------------------------------------------
Now in my Client application i'm trying to do the following:
------------------------------------------------------------------
// lookup a Manager Session Facade bean
AdvertisementManagementHome managerHome =
(AdvertisementManagementHome) PortableRemoteObject.narrow(
ctx.lookup("ejb/advertisement/AdvertisementManagement"),
AdvertisementManagementHome.class);
// create the manager
AdvertisementManagement manager =
managerHome.create();
// create an AdvertisementValue Object:
AdvertisementValue valueObj = new AdvertisementValue("a_test_id");
valueObj.addCorrectionValue(new CorrectionValue("a_test_correction"));
// create the Advertisement
manager.addAdvertisement(valueObj);
-----------------------------------------------------------------------
This does not work, I get an 'CorrectionLocal not Bound' exception.
I suspect something is wrong with my relations...
Can somebody help???
Many Thanks,
Harm de Laat
Informatiefabriek
The Netherlands
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