[ https://issues.apache.org/jira/browse/LUCENE-2542?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Yonik Seeley resolved LUCENE-2542.
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Resolution: Fixed
committed.
> TopDocsCollector should be abstract super class that is the real "TopDocsCollector" contract,
a subclass should implement the priority-queue logic. e.g. PQTopDocsCollector
> ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------
>
> Key: LUCENE-2542
> URL: https://issues.apache.org/jira/browse/LUCENE-2542
> Project: Lucene - Java
> Issue Type: Improvement
> Components: Search
> Reporter: Woody Anderson
> Fix For: 3.1, 4.0
>
> Attachments: LUCENE-2542.patch, LUCENE-2542.patch, LUCENE-2542.patch, LUCENE_3.0.2-2542.patch
>
>
> TopDocsCollector is both an abstract interface for producing TopDocs as well as a PriorityQueue
based implementation.
> Not all Collectors that could produce TopDocs must use a PriorityQueue, and it would
be advantageous to allow the TopDocsCollector to be an "interface" type abstract class, with
a PQTopDocsCollector sub-class.
> While doing this, it'd be good to clean up the generics uses in these classes. As it's
odd to create a TopFieldCollector and have to case the TopDocs object, when this can be fixed
with generics.
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