Hi Tolga,
The SDO_DISTANCE and SDO_NN_DISTANCE is currently not supported. You
need to add static factory methods to the OracleSpatialProjections
class which get their SQL-fragment from the OracleSpatialDialect
(function getSpatialAggregateSQL). Unfortunately, currently only
grouping projections are supported in the internal API. This would
need to be extended or generalized to all kinds of projections
(something on my todo list).
If you decide to implement this, consider submitting your work as a
patch so it is available to the whole community.
Regards,
Karel Maesen
On 07 Feb 2008, at 08:19, Tolga Tarhan wrote:
> All,
>
>
>
> We’re using Oracle and performing queries using Hibernate Spatial
> which take advantage of OracleSpatialRestrictions. SDOWithinDistance
> (). The one thing we can’t figure out is – is there a way to have
> Hibernate Spatial select SDO_DISTANCE() in the column list so that
> we can not only filter results to a certain distance, but also know
> what the distance was? The same is true with
> OracleSpatialRestrictions. SDONN() and selecting SDO_NN_DISTANCE().
>
>
>
> If this isn’t currently supported, could someone be kind enough to
> point me in the right direction for how this could be implemented
> if we decided to take-on this feature enhancement?
>
>
>
> Thanks,
>
> Tolga
>
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