the following mapping is wrong because inside <subclass> it isn't allowed to have both <join table=""> and <one-to-one ... /> can someone hint me on the correct way to get this working ? I think it would work if i map both service types to diferent tables but i don't want to repeat the shared columns. Another way would be to have a two-step extension from GeographicService to GeographicServiceWfs and include the join in one step and the one-to-one in another step. But none of the solutions seem correct. Can you please suggest me something else?
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE hibernate-mapping PUBLIC
"-//Hibernate/Hibernate Mapping DTD//EN"
"http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd" >
<hibernate-mapping package="com.sinfic.ipdms.domain.entity">
<class name="GeographicService" table="GEOGRAPHIC_SERVICE" abstract="true">
<id name="id" type="long" column="ID" unsaved-value="0">
<generator class="native">
<param name="sequence">GEOGRAPHIC_SERVICE_SEQUENCE</param>
</generator>
</id>
<discriminator column="SERVICE_TYPE" type="string" />
<property name="url" type="string" column="URL" />
<property name="title" type="string" column="TITLE" />
<property name="description" type="string" column="DESCRIPTION" />
<subclass name="GeographicServiceWms" discriminator-value="WMS">
<set name="layers" table="GEOGRAPHIC_LAYER" cascade="all">
<key>
<column name="GEOGRAPHIC_SERVICE_ID" />
</key>
<one-to-many class="GeographicLayer" />
</set>
</subclass>
<subclass name="GeographicServiceWfs" discriminator-value="WFS">
<join table="GEOGRAPHIC_SERVICE_WFS">
<key column="GEOGRAPHIC_SERVICE_ID" />
<property name="defaultGraphic" type="string" column="DEFAULT_GRAPHIC" />
<property name="temporaryGraphic" type="string" column="TEMPORARY_GRAPHIC" />
<property name="deleteGraphic" type="string" column="DELETE_GRAPHIC" />
<property name="currentGraphic" type="string" column="CURRENT_GRAPHIC" />
<property name="highlightedGraphic" type="string" column="HIGHLIGHTED_GRAPHIC" />
<property name="selectedGraphic" type="string" column="SELECTED_GRAPHIC" />
</join>
<one-to-one name="layer" property-ref="service" cascade="all" />
</subclass>
</class>
</hibernate-mapping>
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