[hibernate-dev] Search DSL expectations for "keyword()" clause

[Gunnar Morling]

2015-08-27 11:27 GMT+02:00 Hardy Ferentschik <hardy at hibernate.org>:
> On Wed, Aug 26, 2015 at 09:58:39PM +0100, Sanne Grinovero wrote:
>> Assuming you build a Lucene Query the following way:
>>
>>     queryBuilder.keyword().onField( "age" ).matching( 5 ).createQuery();
>>
>> What is your expectation, if the "age" field is being indexed as a NumericField?
>
> I would say that this throws an exception. At least atm. Numeric encoded
> fields needs to be targeted by a range query. One could imagine to transparently
> create a range query in this case. I guess by the metadata we could tell that we have
> a numeric field. However, that's a a lot of magic then, in particular since we
> always that that a keyword query maps to a TermQuery.

Hum, but that's already happening, no?

See DSLTest.testUseOfFieldBridge() where we do exactly that:

    monthQb.keyword().onField( "monthValue" ).matching( 2 ).createQuery();

Internally it's creating a NumericRangeQuery with start/end set to the
same value.

If the field uses a null encoding bridge, it'd be a String field,
though, if I am not mistaken (unless we use some numeric null encoding
as discussed recently), so a simple TermQuery query would be the right
thing.


>
> --Hardy
>
>
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