On Jun 12, 2007, at 7:04 PM, Mike Kienenberger wrote:
As long as 3.0 query translation logic isn't exceedingly divergent from 1.2, I should be able to port my patch to it.
An algorithm note. While we are not yet rewriting SelectQuery translator (so that's an FYI), in EJBQL work I find it very helpful to convert the object query to n intermediate SQLTemplate, instead of converting it to SQL directly. This allows to define parameters in the generated SQL and use Velocity directives. Makes the translator code much cleaner, and results in the PreparedStatement code reuse. On the downside, that's an extra step in the query pipeline, so there may be a performance hit.
Andrus
