This is perhaps best discussed on the java-user list instead. Here's
some thoughts...
On Jun 4, 2010, at 2:36 AM, Li Li wrote:
hi all,
I want to implement a query that taking position and terms'
relative positions into consideration. It only supports multiterm
queries like boolean or query.
But I want to consider term postion and terms relative positions.
e.g. there are two docs
doc1 apache lucene is a open source project
doc2 apache is a http server and lucene ...
if user search "apache lucene" doc1 will win because apache lucene
appear closer than doc2
A PhraseQuery will do that. It's common-place to OR in a (sloppy)
phrase query for the users query in order to get proximity to boost
things. No custom query needed to accomplish this.
e.g.
doc1 some other text apache lucene is a open source project
doc2 apache lucene is a open source project some other text
doc2 wins because "apache lucene" appear at the first position
And here, SpanFirstQuery is your friend. So OR'ing a PhraseQuery and
a SpanFirstQuery (with nested SpanNearQuery, or whatever is
appropriate) seems to accomplish your goals.
Give those a try and report back if things still aren't quite what
you're after.
Erik
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