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From "Uwe Schindler (JIRA)" <>
Subject [jira] Commented: (LUCENE-1496) Move solr NumberUtils to lucene
Date Thu, 11 Jun 2009 14:37:07 GMT


Uwe Schindler commented on LUCENE-1496:

I think we can close this now. I originally wanted to make this issue dependent on the move-to-core
issue and close it together with trie.

There is now a private copy of number utils inside LocalLucene, but this should be removed
soonly and replaced by TrieUtils.

But yonik said: NumberUtils is also only for compatibility reasons in solr. The binary format
used by NumberUtils is not very index-friendly (because of using the full UTF-16 range and
so it has the UTF-8 decoding overhead), so it should not be used for new deleopments. I suggest
to use TrieUtils (or NumberUtils to do the same). TrieUtils only uses 7 bits per char and
so don't touch the UTF-8 encoding (it is simply ASCII-only).

> Move solr NumberUtils to lucene
> -------------------------------
>                 Key: LUCENE-1496
>                 URL:
>             Project: Lucene - Java
>          Issue Type: Task
>            Reporter: Ryan McKinley
>            Priority: Trivial
>             Fix For: 2.9
> solr includes a NumberUtils class with some general utilities for dealing with tokens
and numbers.
> This should be in lucene rather then solr.

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