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From "Robert Muir (JIRA)" <>
Subject [jira] Commented: (LUCENE-2628) Extract OpenBitSet to Apache Commons
Date Sat, 28 Aug 2010 21:10:54 GMT


Robert Muir commented on LUCENE-2628:

I think things like this should stay in Lucene and their implementations should remain specialized
towards our use cases.

If we put them in apache commons and depend on them ourselves, then other use cases might
want to make tradeoffs that
are bad for lucene (but perhaps good for other use cases).

Additionally the lucene core has no external dependencies, and I dont think we should add

In short, I don't see what we would gain here.

> Extract OpenBitSet to Apache Commons
> ------------------------------------
>                 Key: LUCENE-2628
>                 URL:
>             Project: Lucene - Java
>          Issue Type: Wish
>            Reporter: Stu Hood
> o.a.l.util.OpenBitSet is a great alternative to java.util.BitSet, and it is generally
useful outside of the search field. It would be great if OpenBitSet were available outside
of Lucene proper, perhaps as part of Apache Commons.
> Aside from the communication required to accomplish this, there is the small issue of
OpenBitSet extending in Lucene 3.0. There is very little logic contained
in DocIdSet, so it could probably become an interface: Lucene proper could then extend the
extract version of OpenBitSet to implement DocIdSet.

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