[Erick Dovale]

Hello there guys,

Here goes the issue:

/**
 * @hibernate.class table = "table_A" 
 * @hibernate.discriminator column = "disc_column" length = "10"
*/
interface A {
 /* some method */
}

/**
 * @hibernate.subclass discriminator-value = "classB" 
*/
class B implements A{
/* some methods */
}

The mapping generated does not includes the subclass definition although it does contains the discrimitar column.

here goes the mapping:

<?xml version=”1.0″ encoding=”UTF-8″?>

<!DOCTYPE hibernate-mapping PUBLIC
“-//Hibernate/Hibernate Mapping DTD 2.0//EN”
“http://hibernate.sourceforge.net/hibernate-mapping-2.0.dtd”&gt;

<hibernate-mapping>
<class name=”model.User” table=”User” dynamic-update=”false”
dynamic-insert=”false” select-before-update=”false”>

<id name=”id” column=”id” type=”int” unsaved-value=”-1″>
<generator class=”native”>
<!–
To add non XDoclet generator parameters, create a file named
hibernate-generator-params-User.xml
containing the additional parameters and place it in your merge dir.
–>
</generator>
</id>

<discriminator column=”usertype” length=”10″ />

<property name=”myFirstName” type=”java.lang.String”
update=”true” insert=”true” access=”property” column=”firstname”
length=”30″ />

<property name=”myIsActive” type=”boolean” update=”true”
insert=”true” access=”property” column=”isactive” />

<property name=”myLastLogon” type=”java.util.Date” update=”true”
insert=”true” access=”property” column=”lastlogon” />

<property name=”myLastName” type=”java.lang.String”
update=”true” insert=”true” access=”property” column=”lastname”
length=”30″ />

<property name=”myPassword” type=”java.lang.String”
update=”true” insert=”true” access=”property” column=”password”
length=”20″ />

<property name=”myUsername” type=”java.lang.String”
update=”true” insert=”true” access=”property” column=”username”
length=”30″ />

<!–
To add non XDoclet property mappings, create a file named
hibernate-properties-User.xml
containing the additional properties and place it in your merge dir
–>

</class>

</hibernate-mapping>

[Scott Anderson]

edovale,

The mapping generated does not includes the subclass definition although it does contains the discrimitar column.

I don’t believe the discriminator value is actually supposed to be the classname, according to what I read in the hibernate documentation. There’s a really nice tutorial that seems to cover this issue at the IBM website here:
http://www-106.ibm.com/developerworks/java/library/j-hibern/

[Erick Dovale]

I don’t believe this is the problem. I have tested with different values for the discriminator and regardless of it xdoclet does not generate the proper tags in the hbm.xml file.
I recall having read about a bug in xdoclet regarding this. The question would be if you guys have a fix for it.

Thanks.

[Scott Anderson]

I recall having read about a bug in xdoclet regarding this. The question would be if you guys have a fix for it.

For XDoclet fixes, we typically wait for the XDoclet team to release them and then integrate the new version into each service release of MyEclipse. So, we don’t have a specific fix for this one. However, if the XDoclet team has released a fix, you can
update the modules used by MyEclipse yourself by following the instructions in the MyEclipse User Guide, available here:
http://myeclipseide.com/enterpriseworkbench/help/topic/com.genuitec.myeclipse.doc/html/gettingstarted/xdoclet-overview/core/refresh.html

[Matt Raible]

I had this same problem, but it was because I was spelling descriminator wrong. Once I changed it to be discriminator-value=”VALUE”, the mapping was generated correctly. I’m using XDoclet 1.2.2.

[Scott Anderson]

Matt,

Thanks for pointing this out. It’s a tricky error to diagnose.

By the way, “Happy Joining-MyEclipse Anniversary”. 😉

[Author]

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