proxy with composite-id

awt · **Joined:** Thu Dec 11, 2003 9:54 am **Posts:** 25

Guys,

could somebody tell me is there any possibility to use proxy/lazy stuff with composite-id ?

Like an example: I have Table1 which have some fields and composite-id. Composite-id consist from 2 fields: one is local, other is foreign key.

Now, I'd like to catch some data from Table1, but Hibernate (2.1 final) ask automatically PK-table, and tries to build full object. How I can turn off such Hibernat's behaviour ?

-awt

awt · **Joined:** Thu Dec 11, 2003 9:54 am **Posts:** 25

awt wrote:

Guys,

could somebody tell me is there any possibility to use proxy/lazy stuff with composite-id ?

Like an example: I have Table1 which have some fields and composite-id. Composite-id consist from 2 fields: one is local, other is foreign key.

Now, I'd like to catch some data from Table1, but Hibernate (2.1 final) ask automatically PK-table, and tries to build full object. How I can turn off such Hibernat's behaviour ?

-awt

forgot to say, this FK is many side of many-to-one relation...

-awt

emmanuel · **Posted:** Thu Dec 18, 2003 12:27 pm

Don't see any fundamental reason why it's not doable. Do you set a CompositeClass in <composite-id> ?

awt · **Joined:** Thu Dec 11, 2003 9:54 am **Posts:** 25

Thanks, for your reply...

epbernard wrote:

Don't see any fundamental reason why it's not doable. Do you set a CompositeClass in <composite-id> ?

Yes, I'm; actually have done this by Middlegen, version r-3, here are a piece of .hbm.xml:

Code:

    <composite-id name="comp_id" class="FirstPK">
        <key-property 
            name="Id" 
            column="ID" 
            type="java.math.BigDecimal"
            length="22"
        />
        <!-- bi-directional many-to-one association to User -->
        <key-many-to-one
           name="user"
           class="User"
       >
           <column name="USER_ID" />
       </key-many-to-one>
    </composite-id>    

The question is: How I can catch a data from Table1, without calling to table at "one" or PK end ?
(well... yeah, it's a kind of tuning...)

david · **Posted:** Fri Dec 19, 2003 5:00 am

Have you selected the option to set up the class proxy for each of the tables you want lazy loaded?

awt · **Joined:** Thu Dec 11, 2003 9:54 am **Posts:** 25

david wrote:

Have you selected the option to set up the class proxy for each of the tables you want lazy loaded?

Yes, for normal FK, it is completely OK.
But with Composite-Id (my case, see above) seems, that it (proxy on PK table) doesn't work. Or I have some mistakes, but where ?

-awt

david · **Posted:** Sat Dec 20, 2003 11:35 am

User mappings should have a proxy on it. If it does and its not working then a small example would need to be created to illustrate the problem.