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 Post subject: Multiple foreign keys as the primary key
PostPosted: Tue Jul 05, 2005 9:58 am 
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3.0


<?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>

<class name="Cinema">
<id name="id" column="id">
<generator class="identity"/>
</id>

<many-to-one name="cinemaGroup"
class="CinemaGroup"
column="cinemagroup_id"
not-null="true"
/>

<many-to-one name="address"
class="Address"
column="address_id"
not-null="true"
cascade="save-update"
/>

<bag name="nearestCinemas" lazy="true">
<key column="id"/>
<one-to-many class="CinemaDistance"/>
</bag>

<property name="name" not-null="true" />
<property name="contactName" />
<property name="telephoneNumber" />
<property name="customerNumber" />
<property name="emailAddress" />
<property name="mapReference" />
<property name="otherCustomerInformation" />
<property name="carParkingId" not-null="true" />
<property name="disabledOptionsId" not-null="true" />
</class>

</hibernate-mapping>


MySQL 4.0

Hi,

I have a schema query. I am trying to model the following in Hibernate: I have a Cinema object (as mapped above). I want to have a look up table that contains two cinema id's (fromCinema and toCinema) and the distance between then (as a float). So for example:

Cinema Table:
id (PK)
name
emailaddress

CinemaDistance Table:
fromId (FK of Cinema.id)
toId (FK of Cinema.id)
distance (float)

I'm not sure how to define the CinemaDistance object in Hibernate. Is this posible?


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