Actually I don't think this problem is directly related to class hints.
In a previous thread Armin mentioned to me that there was a but that
will be fixed in the next released
previouse email from Armin:
> In the next version of OJB this will be fixed (or try the
OJB_1_0_RELEASE branch from CVS) and
> CParty party = (CParty) getBroker().getObjectByIdentity(oid);
> will always return the correct object instance (CParty, CPartyGroup
or Person) and you can directly cast to the real party type.
-chris worley
I am having a problem with class hints. They do not seem to work all
the time with my configuration. If the PartyContactMech object is
stored in the same instance of the server process that I retreive it
in PartyContactMech.contactMech is populated with an instance of
CPhoneNumber or CPostalAddress. If I try to reteive a records that
were created in a previous instance of the process then
PartyContactMech.contactMechs is populated with an instance of
ContactMech.
Integer partyId = (Integer) getParameter("partyId");
Criteria crit = new Criteria();
crit.addEqualTo("partyId", partyId);
crit.addPathClass("contactMech", CPhoneNumber.class);
Criteria critAddress = new Criteria();
critAddress.addEqualTo("partyId", partyId);
critAddress.addPathClass("contactMech", CPostalAddress.class);
crit.addOrCriteria(critAddress);
Query query = QueryFactory.newQuery(CPartyContactMech.class, crit);
Collection partyContactMechs = getBroker().getCollectionByQuery(query);
setParameter("partyContactMechs", partyContactMechs);
<class-descriptor
class="net.enterprise.common.model.contact.CContactMech"
table="contact_mech"
>
<extent-class
class-ref="net.enterprise.common.model.contact.CPhoneNumber"/>
<extent-class
class-ref="net.enterprise.common.model.contact.CPostalAddress"/>
<field-descriptor
name="contactMechId"
column="contact_mech_id"
jdbc-type="integer"
primarykey="true"
autoincrement="true"
/>
<field-descriptor
name="contactMechTypeId"
column="contact_mech_type_id"
jdbc-type="varchar"
/>
</class-descriptor>
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