Re: [ojb-users] Does OJB supports 1:n uni-directional mapping?

[Thomas M. <tho...@ho...>]

Hi

Hoang, Hai wrote:

> I've a few questions for OBJ community:
> 
> 1. Does OJB supports uni-directional mapping for 1:n and n:m?


Yes, please refer to tutorial3.html for details.


> 2. Does OJB supports direct sql statement? this is useful for the case where
> I've a complex query statement and I don't want to translate to complex qql
> 


Yes. There is a QueryBySql Class that allows to use free-form SQL.
OJB does also provide ReportQueries like TOPlink. (RepostQueries do not 
materialize persistent entity objects but return Object[] that contain 
the Column-values of a ResultSet row.

See JavaDoc on ojb.broker.PersistenceBroker

HTH,

Thomas


> Thanks
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