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From "Shai Erera (JIRA)" <>
Subject [jira] Commented: (LUCENE-2636) Create ChainingCollector
Date Fri, 10 Sep 2010 16:13:33 GMT


Shai Erera commented on LUCENE-2636:

bq. Heh - Solr added a MultiCollector a few weeks ago

Nice :).

bq. ... MultiCollector is a better name

I will rename.

bq. Solr's version also has this

That makes sense. If you eventually run w/ a single Collector, no need to have MultiCollector
in the middle. I'll change MC then to have a private ctor and a static create method. I would
like though for the method to receive a Collector... rather than List, because I think it
simplifies matters on the application's end. And create will filter out all the null ones

I'll post a patch soon.

> Create ChainingCollector
> ------------------------
>                 Key: LUCENE-2636
>                 URL:
>             Project: Lucene - Java
>          Issue Type: New Feature
>          Components: Search
>            Reporter: Shai Erera
>            Assignee: Shai Erera
>            Priority: Minor
>             Fix For: 3.1, 4.0
>         Attachments: LUCENE-2636.patch
> ChainingCollector allows chaining a bunch of Collectors, w/o them needing to know or
care about each other, and be passed into Lucene's search API, since it is a Collector on
its own. It is a convenient, yet useful, class. Will post a patch w/ it shortly.

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