You could use ValueSourceQuery for this - see o.a.l.search.function. The trick is to create your ValueSource class that is using two FieldCacheSource objects - one for each location.
See http://issues.apache.org/jira/browse/LUCENE-1019 for a related example. Note however that this solution would work well only as long as the index is not huge. For a very large index the loading of the entire two fields into the FieldCache would become heavy, as will warming a new searcher. This will be resolved once we heve a payload-based ValueSource. Doron "Johnny R. Ruiz III" <[EMAIL PROTECTED]> wrote on 21/10/2007 03:44:29: > Hi All, > > I was looking for a way to do a range query on 2 numeric field > of my index. The tricky part is, I don't directly use the > numeric field but I have to use it on a computation formula to > satisfy my criteria. > > Hope this helps to explain my scenario: > > pointX--> latitude X input by user. > pointY--> longitude Y input by user. > > locX --> field indexed in lucene > locY --> field indexed in lucene > > radius --> constant value as acceptable distance to be > returned in search results (hits) > > Conditon to satisfy: > > Math.sqrt ( ( locX - pointX ) + ( locY - pointY ) ) <= radius > > Is this possible in lucene? Has anyone did this before? > Thanks in Advance! > > My Actual Use Case is I want to return all location within a > certain Radius of 1 mile given PointX and PointY from User. > > Regards, > Johnny Ruiz --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
