hi gays
how I can map two table with one-to-one relationship and composite-id?
eg. Table A and B have two column first_id and second_id and make them a composited primary id ,at the same time they have one-to-one association. How to write the map ?
3x

no boby know it?? or Hibernate is never support this?

One-to-one joined by primary composite key is no problem. Have you tried using the same key class for both entities?

thinks david for your answer and you save me several day time. the problem is solved. thanks again

Does this work in Hibernate 2.1?

The docs for mapping a one-to-one from Person to Employee show the following:

<class name="person" table="PERSON">
<id name="id" column="PERSON_ID">
<generator class="foreign">
<param name="property">employee</param>
</generator>
</id>
...
<one-to-one name="employee"
class="Employee"
constrained="true"/>
</class>


Now, wouldn't my id be a <composite-id> instead of an <id> element, and if so, now I cant specify a generator of foreign??