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From Christian Kohlschütter (JIRA) <>
Subject [jira] Commented: (LUCENE-1290) Deprecate Hits
Date Wed, 21 May 2008 06:44:56 GMT


Christian Kohlschütter commented on LUCENE-1290:

The HitCollector callback is called in index order (or in any other, non-deterministic order),
whereas the results in Hits are sorted (by relevance or any given Sort order). 

Good idea, this would be even better than the plain iterator class.

> Deprecate Hits
> --------------
>                 Key: LUCENE-1290
>                 URL:
>             Project: Lucene - Java
>          Issue Type: Task
>          Components: Search
>            Reporter: Michael Busch
>            Assignee: Michael Busch
>            Priority: Minor
>             Fix For: 2.4
>         Attachments: lucene-1290.patch, lucene-1290.patch
> The Hits class has several drawbacks as pointed out in LUCENE-954.
> The other search APIs that use TopDocCollector and TopDocs should be used instead.
> This patch:
> - deprecates org/apache/lucene/search/Hits, Hit, and HitIterator, as well as
>   the * ) methods which return a Hits Object.
> - removes all references to Hits from the core and uses TopDocs and ScoreDoc
>   instead
> - Changes the demo SearchFiles: adds the two modes 'paging search' and 'streaming search',
>   each of which demonstrating a different way of using the search APIs. The former
>   uses TopDocs and a TopDocCollector, the latter a custom HitCollector implementation.
> - Updates the online tutorial that descibes the demo.
> All tests pass.

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