Hi, I'm trying to get inheritance working with OJB. I want to use the most
complex (but also most versatile) method, multiple joined tables. Here are
my classes:
-----
/**
* @ojb.class table="bit_Person"
*/
public class Person
{
/**
* @ojb.field name="id"
* primarykey="true"
* jdbc-type="INTEGER"
* length="11"
* autoincrement="ojb"
*/
protected int id;
/**
* @ojb.field
* length="64"
*/
protected String lastName;
// Removed code for brevity
}
/**
* @ojb.class table="bit_Candidate"
* include-inherited="false"
*/
public class Candidate extends Person
{
/**
* @ojb.reference class-ref="nl.bergland.codamo.Person"
* name="super"
* foreignkey="id"
* auto-retrieve="true"
* auto-update="true"
* auto-delete="true"
*/
/**
* @ojb.field name="id"
* primarykey="true"
* jdbc-type="INTEGER"
* length="11"
* autoincrement="ojb"
*/
protected int id;
/**
* @ojb.field
*/
protected Date availableFrom;
// Removed code for brevity
}
-----
The classes have all the ususal getters and setters, but I removed that code
here to keep it simple. I want person to map to a table bit_person with an
id and a lastname field. Candidate IS A Person, so it should save it's data
to bit_person.id and bit_person.lastName, however, it should also save the
availableFrom field to bit_candidate.availableFrom and set bit_candidate.id
to be the same as bit_person.id.
This should be possible, but I can't get it to work using OjbDoclet. Can
anyone point out the mistake I am probably making? At the moment, when I
save a Candidate, bit_person is not touched at all.
Here is my repository_user.xml, but remember, that's generated by OjbDoclet.
-----
<!-- file containing the repository descriptions for user-defined types -->
<!-- Generated by the xdoclet-ojb module -->
<class-descriptor
class="nl.bergland.codamo.Candidate"
table="bit_Candidate"
>
<field-descriptor
name="id"
column="id"
jdbc-type="INTEGER"
primarykey="true"
autoincrement="true"
length="11"
>
</field-descriptor>
<field-descriptor
name="availableFrom"
column="availableFrom"
jdbc-type="DATE"
>
</field-descriptor>
</class-descriptor>
<class-descriptor
class="nl.bergland.codamo.Person"
table="bit_Person"
>
<extent-class class-ref="nl.bergland.codamo.Candidate"/>
<field-descriptor
name="id"
column="id"
jdbc-type="INTEGER"
primarykey="true"
autoincrement="true"
length="11"
>
</field-descriptor>
<field-descriptor
name="lastName"
column="lastName"
jdbc-type="VARCHAR"
length="64"
>
</field-descriptor>
</class-descriptor>
-----
Thanks in advance for any help,
-Stijn
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