Hi,

I am wondering if there is some kind of library based on hibernate or not, that would return for a search :
- results that corresponds to the criterias
- plus results that do not exactly correspond to the criterias ordered by relevance

For instance if you have 5 criterias :
I would like to get the results that have those 5 criterias, then the results that have just 4, then 3 ...

Do you know of any library that does that ??

Thanks

HIbernate is the library.. there's nothing that hibernate can make use of to provide additional functionality.

You could write a more complex query, returning a rating for each result along with the result. This would involve complex subqueries, and the return from the eventual list() method would be an Object[2] rather than an instance of the class you're searching for, so dealing with that is a bit more complex too.

If you're not too fussy about the rating, the Subqueries class provides a few methods, all of which have "some" in their name, that do something approaching fuzzy searching.

Finally, the easiest but least efficient option is to do multiple searches, one for each criterion, then build a final result list from it. Whenever an item appears in a list, its rating is incremented.

It's seems compass is doing it, for the ones that might be interested. In facts lucene does it, and compass uses lucene.