Hi All,
I am using Hibernate Search for searching Customers ( columns -> first_name,last_name). User enters either of them and wildcard is appended to the each query term after tokenization.
I want the results with an exact match to the query to be scored and hence sorted higher in the results list. How can this be achieved ?

Thanks in advance,
Sourabh Ghorpade

Hi,

By default the results of wildcard searches have a constant score. You may give the recommendation from http://markmail.org/message/psgn7ag4ktld4za2 a try to change that. To access the scores of your query results, use ProjectionConstants.SCORE as described in the reference guide (http://docs.jboss.org/hibernate/search/4.4/reference/en-US/html_single/#d0e5630).

Hth,

--Gunnar

Hi Gunnar,
Thanks for your reply. I will try the recommendation and post back. Just out of curiosity why cant we specify that exact matches should be given higher priority ?

Hi,
Gunnar is right on the scoring on wildcard queries; I would suggest to try a normal query without forcing it to be wildcard. In this case, the exact matches will always have an higher score than partial matches as that's the default strategy.
You can also run both queries, and combine them with the should operator: that will combine their score.

Hi Sanne,
What I did was, the wildcard(*) is not added by default but by the user if required. So it works well if there is no wildcard, but same scenario occurs in-case of partial match. Is that what you were talking about ?

Hi Gunnar, Sanne

I just tried that but now the partial matches are coming up on top instead of exact matches !
For Query "Gandalf*" , Search results are ->
Gandalfi Test M Test L
Gandalf Test M Test L
Gandalf Test M Test L

They should be the other way around. plain reverse sort wont help as we want only top 10 results, so exact matches might not even come up in top 10.
Sanne,
combining two queries won't help as now we are indexing the full name of a customer(first name + middle name + last name)
so a normal query will not give any results. so for above example just "gandalf" will not give any results.

FOUND the solution! !!!
added a String sort to the full text Query on the customer name :D :D
nothing else required