Trying to guess it it could be:
<list name="nameofyourfield" table="nameofyoursubtable" lazy="false">
<key>
<column name="XWL_ID" />
</key>
<index column="XWL_NUMBER"/>
<element column="XWL_VALUE" type="string" />
</list>
XWL_ID -> field that represents the id of your objkect
2011/11/16 Ludovic Dubost <[email protected]>
> A multi select DB list is stored in a sub table. It seems you have used a
> string to store the value but you can't.
> Look at the hbm of XWiki on the way the DBStringListProperty is done
>
> <joined-subclass name="com.xpn.xwiki.objects.DBStringListProperty"
> table="xwikilists">
> <key>
> <column name="XWL_ID" />
> <column name="XWL_NAME" />
> </key>
> <list name="list" table="xwikilistitems" lazy="false">
> <key>
> <column name="XWL_ID" />
> <column name="XWL_NAME" />
> </key>
> <index column="XWL_NUMBER"/>
> <element column="XWL_VALUE" type="string" />
> </list>
> </joined-subclass>
>
> Now I'm not sure exactly how to do it. I've never tried it. If you make it
> work please tell us.
>
> 2011/11/16 Edo Beutler <[email protected]>
>
>> Hi
>>
>> Today I tried to create a custom mapping for a class. One field of the
>> class is a DBList with the "Multiple Select" option activated. To save
>> the values to the DB I wanted to use a string field like I'm used to
>> with static lists and non multi select DB lists. Now I get the
>> following exception when trying to save a Document with an object
>> attached: "java.util.ArrayList cannot be cast to java.lang.String"
>>
>> How could I custom map a DBList field if String ist not possible? or
>> is there even a simple Solution I missed?
>>
>> A hint in the right direction would be appreciated
>> Edo
>> _______________________________________________
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>> [email protected]
>> http://lists.xwiki.org/mailman/listinfo/devs
>>
>
>
>
> --
> Ludovic Dubost
> Founder and CEO
> Blog: http://blog.ludovic.org/
> XWiki: http://www.xwiki.com
> Skype: ldubost GTalk: ldubost
>
>
--
Ludovic Dubost
Founder and CEO
Blog: http://blog.ludovic.org/
XWiki: http://www.xwiki.com
Skype: ldubost GTalk: ldubost
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