On 06/05/2008, at 11:30 AM, JGL wrote:
Hi All,
I recently discovered Cayenne while searching for an alternative for
Hibernate.
I am very impressed with the easy & intuitive framework Cayenne
provides.
While porting my current Hibernate app to Cayenne, I did run into an
issue
which I'd like to seek your help:
In Hibernate, the M side of 1-M relationship can be mapped as a
list, which
means it's ordered. I can specify the list-index column like this:
<class name="Item" table="ITEM">
...
<list name="bids">
<key column="ITEM_ID" not-null="true"/>
<list-index column="BID_POSITION"/>
<one-to-many class="Bid"/>
</list>
</class>
and the BID_POSITION is automatically managed by the framework.
Is there any 'list index column' equivalent in Cayenne? How can I
ask the
framework to manage the list index ? or do I have to manage it by
myself?
Thanks very much!!
Well, you can order the results easily enough once you fetch them into
a list:
http://cayenne.apache.org/doc/using-orderings.html
In Cayenne 3 you can also fetch the results into a Map if that helps
what you are trying to do.
Ari Maniatis
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