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identity not allowed in union subclass hierarchy 

git-svn-id: https://svn.jboss.org/repos/hibernate/trunk/Hibernate3/doc@6637 1b8cb986-b30d-0410-93ca-fae66ebed9b2
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Emmanuel Bernard 2005-05-02 13:40:33 +00:00
parent 70292fcb03
commit 92359983cc
1 changed files with 6 additions and 3 deletions
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9
reference/en/modules/inheritance_mapping.xml
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@ -213,7 +213,7 @@
</sect2> </sect2>
<sect2 id="inheritance-tableperconcrete"> <sect2 id="inheritance-tableperconcrete" revision="1">
<title>Table per concrete class</title> <title>Table per concrete class</title>
<para> <para>
@ -223,7 +223,7 @@
<programlisting><![CDATA[<class name="Payment"> <programlisting><![CDATA[<class name="Payment">
<id name="id" type="long" column="PAYMENT_ID"> <id name="id" type="long" column="PAYMENT_ID">
<generator class="native"/> <generator class="sequence"/>
</id> </id>
<property name="amount" column="AMOUNT"/> <property name="amount" column="AMOUNT"/>
... ...
@ -247,7 +247,10 @@
<para> <para>
The limitation of this approach is that if a property is mapped on the The limitation of this approach is that if a property is mapped on the
superclass, the column name must be the same on all subclass tables. superclass, the column name must be the same on all subclass tables.
(We might relax this in a future release of Hibernate.) (We might relax this in a future release of Hibernate.) The identity
generator strategy is not allowed in union subclass inheritance, indeed
the primary key seed has to be shared accross all unioned subclasses
of a hierarchy.
</para> </para>
</sect2> </sect2>