Hibernate Community • View topic - (Newbie question) create Set to PK of other class

View unanswered posts | View active topics

Board index » Hibernate & Java Persistence » Hibernate Users

All times are UTC - 5 hours [ DST ]

(Newbie question) create Set to PK of other class

Page 1 of 1

[ 2 posts ]

Previous topic | Next topic

Author

Message

KurtWagner

Post subject: (Newbie question) create Set to PK of other class

Posted: Thu Aug 25, 2005 4:44 pm

Beginner

Joined: Wed Jul 20, 2005 2:57 pm
Posts: 28

Hi,

I have trouble with my set. I want to create a Set to another class.
Here are the two mappingfiles I tried to do that with:

Quote:

<hibernate-mapping package="hibernate">
<class
name="Team"
table="team"
>
<composite-id name="pk_team" class="PK_Team">
<key-property
name="leagueid"
column="leagueid"
type="java.lang.Long"
/>

<key-property
name="name"
column="name"
type="java.lang.String"
/>
</composite-id>
<set name="Team_Player" inverse="true" cascade="all">
<key column="leagueid"/>
<key column="teamname"/>
<one-to-many class="hibernate.Player"/>
</set>
...
</hibernate-mapping>

and the mapping of the "child-class" looks like this:

Quote:

<hibernate-mapping package="hibernate">
<class
name="Player"
table="player"
>
<composite-id name="pk_player" class="PK_Player">
<key-property
name="leagueid"
column="leagueid"
type="java.lang.Long"
/>
<key-property
name="teamname"
column="teamname"
type="java.lang.String"
/>

<key-property
name="name"
column="name"
type="java.lang.String"
/>
</composite-id>
...
</hibernate-mapping>

Any help is greatly appreciated.

Regards,
Kurt

Top

nathanmoon

Post subject:

Posted: Thu Aug 25, 2005 6:14 pm

Expert

Joined: Wed Apr 06, 2005 5:03 pm
Posts: 273
Location: Salt Lake City, Utah, USA

I think you just need to put two column tags in the key tag, rather than have two key tags. Here's an example from the docs (http://www.hibernate.org/hib_docs/v3/reference/en/html_single/#components-compositeid)

Code:

<set name="orderLines" inverse="true">
    <key>
        <column name="orderId"/>
        <column name="customerId"/>
    </key>
    <one-to-many class="OrderLine"/>
</set>

Top

Page 1 of 1

[ 2 posts ]

Board index » Hibernate & Java Persistence » Hibernate Users

All times are UTC - 5 hours [ DST ]

You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum