Hi all,
I am using Hibernate 3.1 and I am facing a problem mapping object hierarchy to different tables.
I have the class hierarchy:
Code:
abstract class Criterion {}
class StringCriterion extends Criterion {}
class StatusCriterion extends Criterion {}
I have an appropriate mapping file:
Code:
<hibernate-mapping package="com.criterion" default-access="field">
<class name="Criterion" table="CRIT_T" abstract="true" discriminator-value="999">
....
<discriminator column="ELMNT_TYPE" type="long"/>
<subclass name="StatusCriterion" discriminator-value="1" >
<property name="alarmStatus" column="ELMNT_FIRST_VALUE"
type="string"/>
</subclass>
<subclass name="StringCriterion" discriminator-value="2" >
<property name="value" column="ELMNT_FIRST_VALUE" type="string"/>
</subclass>
</class>
</hibernate-mapping>
This mapping works great, but when I tried to map these classes to different tables (by adding an
entity-name attribute to the subclass and class elements in the hbm file) I failed.
I am quite familiar with the
entity-name attribute and it is not the first time I am using it, but this time it "combined" with sub classing.
Is there any known bug on that? Or I am simply wrong?
Thanks in advance.
Guy
Login
FAQ
Search