Hello,
Which XDoclet version you are using .. because the version which i
have(1.2 b) doesn't method level tag for ejb.valueobject !!
Regards,
Vikram
----- Original Message -----
From: "Poppe, Troy" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Thursday, June 05, 2003 3:53 PM
Subject: [Xdoclet-user] Updating CMR field through VO?
>
> I have defined a bi-directional, one-to-many CMR in two EJBs
(PerformancePlan and
> AssignedPerformanceElement) as seen below. Each of these EJBs has an
associated
> ValueObject. The PerformancePlanValue contains a Collection of
> AssignedPerformanceElements, and there are a number of additional
Collections
> that represent the AssignedPerformanceElements that have been added,
updated, or
> removed.
>
> I have created my EJBs as having ONLY local interfaces, and thus I have
wrappered
> them with a Session bean that is responsible for managing the interactions
with
> the client (a Struts application in this case). One of the methods
available to
> the Struts application is seen below. It takes as a parameter, an
instance of a
> PerformancePlanValue (presumably with some changes that need to be
updated, and
> persisted). Of particular interest here is the adding, creating, or
removing of
> AssignedPerformanceElements.
>
> In my code that calls updatePerformancePlan(PerformancePlanValue ppv), I
place a
> new AssignedPerformanceElementValue object into the PerformancePlanValue
object
> by calling
>
addAssignedPerformanceElement(gov.doe.eia.pms.AssignedPerformanceElementValu
e
> added).
>
> Unfortunately, when I get into the
> add(gov.doe.eia.pms.AssignedPerformanceElementValue added) method in
> PerformancePlanCMP, there's a section of code (seen below) that is
dynamically
> generated. No where in this section of code is there a call to
> setPerformancePlan(PerformancePlanLocal preformancePlan). This seems like
a
> local place to add the reference to the parent object.
>
> When the EJB container attempts to persist the new
AssignedPerformanceElement
> into the database, there's an execpted error:
>
> javax.ejb.CreateException: Could not create entity:java.sql.SQLException:
> ORA-01400: cannot insert NULL into
> ("HR"."ASSIGNEDPERFORMANCEELEMENT"."PERFORMANCEPLANID")
>
> Is it my responsiblity as the EJB developer to do something that I'm not
doing to
> ensure that my relationships are referenced properly when I use
ValueObjects? Am
> I using the ValueObjects wrong? Is there something missing from XDoclet's
> dynamically generated code?
>
> Thanks.
>
> Troy Poppe
>
>
> ----
>
> public class PerformancePlanBean
> {
> ...
> /**
> * @ejb.relation
> * name =
> "AssignedPerformanceElementsInAPerformancePlanRelation"
> * role-name =
> "AssignedPerformancePlanHasPerformanceElements"
> * cascade-delete = "no"
> *
> * @ejb.interface-method
> * view-type = "local"
> *
> * @ejb.value-object
> * compose="gov.doe.eia.pms.AssignedPerformanceElementValue"
> * compose-name="AssignedPerformanceElement"
> * members="gov.doe.eia.pms.AssignedPerformanceElementLocal"
> * member-name="AssignedPerformanceElement"
> * relation="external"
> * type="Collection"
> *
> * @return
> */
> public abstract Collection getAssignedPerformanceElements();
>
> /**
> *
> * @ejb.interface-method
> * view-type = "local"
> *
> * @param performanceElements
> */
> public abstract void setAssignedPerformanceElements(Collection
> assignedPerformanceElements);
> ...
> }
>
>
> public class AssignedPerformanceElementBean
> {
> ...
> /**
> * @ejb.relation
> * name =
> "AssignedPerformanceElementsInAPerformancePlanRelation"
> * role-name =
> "AssignedPerformanceElementInAPerformancePlan"
> *
> * @ejb.interface-method
> * view-type = "local"
> *
> * @jboss.relation
> * fk-column = "performancePlanID"
> * related-pk-field = "performancePlanID"
> *
> * @author TPO
> */
> public abstract PerformancePlanLocal getPerformancePlan();
>
> /**
> * @ejb.interface-method
> * view-type = "local"
> *
> * @jboss.relation
> * fk-column = "performancePlanID"
> * related-pk-field = "performancePlanID"
> *
> * @author TPO
> */
> public abstract void setPerformancePlan(PerformancePlanLocal
> preformancePlan);
> ...
> }
>
>
> public PerformancePlanValue updatePerformancePlan(PerformancePlanValue
> ppv)
> {
> PerformancePlanLocalHome pplHome = null;
> PerformancePlanLocal ppl = null;
>
> try
> {
> pplHome = PerformancePlanUtil.getLocalHome();
> }
> catch ( NamingException ex)
> {
> }
>
> if ( ppv.getPerformancePlanID() == null )
> {
> // new PerformancePlan
> // NOTE: should probably check if the user is in the
> right role
> // to be creating a performance plan.
> try
> {
> ppl = pplHome.create(ppv);
> }
> catch ( CreateException ex )
> {
> }
> }
> else
> {
> // existing PerformancePlan
> try
> {
> ppl =
> pplHome.findByPrimaryKey(ppv.getPerformancePlanID());
> ppl.setPerformancePlanValue(ppv);
> }
> catch ( FinderException ex )
> {
> }
> }
> return ppl.getPerformancePlanValue();
> }
>
>
> public void add(gov.doe.eia.pms.AssignedPerformanceElementValue added)
> throws javax.ejb.CreateException
> {
> try
> {
> java.lang.Integer pk = added.getAssignedPerformanceElementID();
>
> gov.doe.eia.pms.AssignedPerformanceElementLocalHome home =
> gov.doe.eia.pms.AssignedPerformanceElementUtil.getLocalHome();
>
> gov.doe.eia.pms.AssignedPerformanceElementLocal relation =
> home.create(added);
> getAssignedPerformanceElements().add(relation);
> }
> catch (Exception e){
> if (e instanceof javax.ejb.CreateException)
> throw (javax.ejb.CreateException)e;
> else
> throw new javax.ejb.EJBException(e);
> }
> }
>
>
>
>
>
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