Am I correct in understanding that you cannot have a join and a joined-subclass element under one class element? If this is true how does one map this model where the join table defines a 1(subtype)-M(supertype) optional bidirectional relationship from the subtype to the supertype. The semantics of this relationship are independent of the supertype-subtype relationship. The subtype is one of several subtypes of the supertype that are defined using a table-per-class subtype mapping and therefore use the joined-subclass tag. When I try to add this relationship the mapping file does not validate. I get the standard "Content of element type class must match..." Currently using XDoclet to define hibernate mappings.
Thanks in advance for any help.
relevant snippets from generated hbm.xml file that doesn't validate.
<?xml version="1.0" encoding="ISO-8859-1"?>
<!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD 3.0//EN" "http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">
<hibernate-mapping>
<class table="a1mel" lazy="false" name="org.unavco.pbo.mdm.model.Equipment">
<id column="idmel" unsaved-value="null" name="id">
<generator class="sequence">
<param name="sequence">a1MELSeq</param>
</generator>
</id>
<property name="idUNAVCO" column="eqpunavcoid"/>
<property name="manufacturer" column="eqpmanuf"/>
<joined-subclass name="org.unavco.pbo.mdm.equipment.model.Tiltmeter" table="a2eqp_tiltmeter">
<key column="idmel"/>
<property name="depth" column="depth"/>
<property name="orientation" column="orientation"/>
<property name="latitude" column="latitude"/>
<property name="longitude" column="longitude"/>
<property name="elevation" column="elevation"/>
</joined-subclass>
<!-- supertype(1) side of 1:M definition
<join table="timedEquipment" optional="true">
<key column="equipmentid"/>
<many-to-one not-null="true" column="timerid" name="timer" class="org.unavco.pbo.mdm.equipment.model.Timer"/>
</join>
....
<joined-subclass name="org.unavco.pbo.mdm.equipment.model.Timer" table="a2eqpTimer">
<key column="idmel"/>
<!-- collection not relevant to discussion -->
<bag table="a3eqptimervalue" inverse="true" cascade="all, delete-orphan" name="modifiableTimerValues">
<key column="timerid"/>
<one-to-many class="org.unavco.pbo.mdm.equipment.model.timerValue"/>
</bag>
<!-- collection side of 1:M relationship -->
<set table="timedEquipment" inverse="true" name="modifiableEquipment">
<key column="timerid"/>
<many-to-many column="equipmentid" unique="true" class="org.unavco.pbo.mdm.model.Equipment"/>
</set>
</joined-subclass>
....
</class>
</hibernate-mapping>
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