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https://issues.apache.org/jira/browse/LUCENE-3282?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13063619#comment-13063619
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Shay Banon commented on LUCENE-3282:
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Heya,
In my app, I have a wrapper around OBS, that has a common interface that
allows to access bits by index (similar to Bits in trunk), so I need to extract
from it the OBS.
Regarding the Collector, I will work on CollectorProvider interface. I liked
the NoOpCollector option since then you don't have to check for nulls each
time...
> BlockJoinQuery: Allow to add a custom child collector, and customize the
> parent bitset extraction
> -------------------------------------------------------------------------------------------------
>
> Key: LUCENE-3282
> URL: https://issues.apache.org/jira/browse/LUCENE-3282
> Project: Lucene - Java
> Issue Type: Improvement
> Components: core/search
> Affects Versions: 3.4, 4.0
> Reporter: Shay Banon
> Attachments: LUCENE-3282.patch
>
>
> It would be nice to allow to add a custom child collector to the
> BlockJoinQuery to be called on every matching doc (so we can do things with
> it, like counts and such). Also, allow to extend BlockJoinQuery to have a
> custom code that converts the filter bitset to an OpenBitSet.
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