Hi All, I hope someone can offer some advice.
I want to extend lucene to search in a particular way(if it cant already):

I want to index docs, each with file containing several terms something like:
doc1=>myfield:a
doc2=>myfield:a,b
doc3=>myfield:a,b,c
doc4=>myfield:a,b,c,d
so far nothing new.

I want to query for matching docs such that a query something like myfield:(a or b) should only return docs if the doc itself is FULLY matched.
ie, for the query myfield:(a or b) , only doc1 and doc2 should match.
So the rules are its only a match if the termcount for each doc is <=the termcount of the query(for that field) AND ALL the terms in the doc were matched

a few more examples just to clarify:
myfield:(a or b or d) would match doc4
myfield:(a or b or c or d) would match ALL the docs here (this one works anyway but only because it uses all the terms that exist)
myfield:(a) would match doc1

order is not important (but might be a nice have)

can anyone tell me if its possible to make lucene do this, and perhaps offer a starting point?
thanks
Jason.



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