- Joined Inheritance Strategy Problem 2007-08-09 - By grdzeli_kaci
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hi all,
Enviroment:
JBoss - 4.0.4GA
DB - Oracle 10g
EJB - JBoss EJB 3.0 RC7 - FD
i have 3 table into database
Root Table : PAYMENT_METHOD_DATA
first Child Table : BANK_TRNSF_METHOD_INFO
second Child Table : SCRATCH_METHOD_INFO
in java i have inheritance joined strategy, then root class looks like :
| @(protected)()
| @(protected)(name = "PAYMENT_METHOD_DATA", schema = "CCARE")
| @(protected)(strategy = InheritanceType.JOINED)
| @(protected)(name = "METHOD_DATA_TYPE", discriminatorType =
DiscriminatorType.INTEGER)
| @(protected)("1")
| public class PaymentMethodData implements Serializable {
| }
|
then first child looks like :
| @(protected)()
| @(protected)(name = "BANK_TRNSF_METHOD_INFO", schema = "CCARE")
| @(protected)("2")
| public class BankTrnsfMethodInfo extends PaymentMethodData implements
| Serializable {
| }
|
second child :
| @(protected)()
| @(protected)(name = "SCRATCH_METHOD_INFO", schema = "CCARE")
| @(protected)("3")
| public class ScratchMethodInfo extends PaymentMethodData implements
| Serializable {
| }
|
when i persist BankTrnsfMethodInfo entity object,
automatically persisted also PaymentMethodData, but into PAYMENT_METHOD_DATA
column METHOD_DATA_TYPE value is NULL. i don't understand what happened
I NEED PARRENT-CHILDS STRATEGY, is the JOINED strategy for this task ?
can anybody help me ? i tried to do this for a month, but i could not resolve.
is this known bug? or may other new version help me ???
__ ____ __
Regards,
Paata.
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