session.get() with composite key

rwallace1 · **Joined:** Fri Oct 14, 2005 2:35 pm **Posts:** 14

I'm trying to do a session.get() on a class with a composite key. How can I do it? Is such a thing possible or do I need to do a session.find() and just get the first result, if there is one?

d · **Joined:** Mon Jul 04, 2005 5:19 pm **Posts:** 720

session.get(Bozo.class, bozoCompId);

rwallace1 · **Joined:** Fri Oct 14, 2005 2:35 pm **Posts:** 14

Ok, but how do I construct the composite id bozoCompId?

kochcp · **Posted:** Fri Oct 14, 2005 4:24 pm

if you are using hbm2java the following will generate your PK class

Code:

...
<composite-id name="comp_id" class="package.ClassPK">
 <meta attribute="generated-class" inherit="false">packageClassPK</meta>
...
 

if not using hbm2java, handwrite it. hibernate will know how to handle a PK object

d · **Joined:** Mon Jul 04, 2005 5:19 pm **Posts:** 720

BozoCompId bozoCompId = new bozoCompId();
bozoCompId.setOne(1);
bozoCompId.setTwo(2);

rwallace1 · **Joined:** Fri Oct 14, 2005 2:35 pm **Posts:** 14

Ah ok. Up until now I didn't have an actual class that represented the composite id. I didn't know you needed one since it doesn't seem to be in the docs. Thanks kochcp.