Hi,

Lucene 5 removed the way to boost queries on its own. You have to live with that. In addition, all queries should be immutable Not yet enfocred in Lucene 5), which is required for caching purposes*).

When you apply a BoostQuery on top of any other query the scores the inner query return are just multiplied by the boost. Of course the original query won't change. That is the typical "wrapper pattern".

I don't understand what you problem is, why do you want to cast those queries to something they aren't?

Uwe

*) In Lucene 5 not all queries are yet really immutable, but most of them were changed or setters deprecated. E.g., BooleanQuery has a builder in 5.5, with all constructors deprecated. The reason for this is also immutablility: It should be impossible to change the clauses after constructing the query, so a builder is needed.

Am 25.11.2023 um 16:02 schrieb Claude Lepère:
Hello Mikhail.

Sorry if I was not precise enough.
A NumericRangeQuery can be wrapped in a BooleanQuery with a boost but this
boost is applied to the BoostQuery (a Query) not to the wrapped
NumericRangeQuery.
Casting BoostQuery or Query to NumericRangeQuery is impossible and
BoostQuery.getQuery returns the wrapped NumericRangeQuery not modified, not
boosted (by virtue of immutability? The migration guide does not say that
NumericRangeQuery is immutable.).

But my problem is indeed boosting the NumericRangeQuery and I'm staying
with the deprecated NumericRangeQuery.setBoost.

Thanks for your help.

Claude Lepère






On Sat, Nov 25, 2023 at 3:14 PM Mikhail Khludnev <m...@apache.org> wrote:

Hello Claude,
Wrap it by BoostQuery. see
https://lucene.apache.org/core/6_0_0/MIGRATE.html


On Sat, Nov 25, 2023 at 2:46 PM Claude Lepère <claudelep...@gmail.com>
wrote:

Hi.

We are using Lucene 5.5.5 where setBoost is deprecated for all Query
types.
How to set the boost of a NumericRangeQuery while preserving the
NumericRangeQuery type?
BoostQuery doesn't allow this and I haven't found a way.

Thanks for your help.

Claude Lepère


--
Sincerely yours
Mikhail Khludnev

--
Uwe Schindler
Achterdiek 19, D-28357 Bremen
https://www.thetaphi.de
eMail: u...@thetaphi.de


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