Hello again:

What if i want to search for numbers with a special format like 000000000294. That's because when i query this number there are no results, but when i query for 294.... hibernate search finds it.

What should i do if i want results when i wrote 000000000294??

hi, Lucene doesn't have the notion of numbers, just strings and so these have to match exactly.
Probably one of your numbers has been processed to remove leading zeros, make sure you apply the same function to the query.
A QueryParser will apply an Analyzer automatically, if you build the query programmatically you have to run the Analyzer yourself. All what is indexed is analyzed, unless it's explicitly disabled (using UNTOKENIZED)
Using Luke you can inspect your index and "see" how it's being stored in the index.

Yes !

I used Luke and figured out that the value 000000000294 is indexed as 294.0, that's because of the toString() use by the DoubleBridge.
So, what should i do when the user writes 000000000294 ??, should i write my own bridge ? or just declare that field as untokenized ?

I'll appreciate the help.

I would use the same bridge on the user input, so that
00000294=00294=294=294,0=294,00

but it depends on what you need, so it's up to you