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From "Shai Erera (JIRA)" <>
Subject [jira] Commented: (LUCENE-1720) TimeLimitedIndexReader and associated utility class
Date Mon, 29 Jun 2009 14:27:47 GMT


Shai Erera commented on LUCENE-1720:

bq. I'm not familiar with the proposal to pass around a Timeout object

On the email thread I offered to create on QueryWeight a scorer(IndexSearcher, boolean, boolean,
Timeout) in order to pass a Timeout object to Scorer, and also create a TimeLimitedQuery.
But it's no longer needed.

> TimeLimitedIndexReader and associated utility class
> ---------------------------------------------------
>                 Key: LUCENE-1720
>                 URL:
>             Project: Lucene - Java
>          Issue Type: New Feature
>          Components: Index
>            Reporter: Mark Harwood
>            Assignee: Mark Harwood
>            Priority: Minor
>         Attachments:,,,
> An alternative to TimeLimitedCollector that has the following advantages:
> 1) Any reader activity can be time-limited rather than just single searches e.g. the
document retrieve phase.
> 2) Times out faster (i.e. runaway queries such as fuzzies detected quickly before last
"collect" stage of query processing)
> Uses new utility timeout class that is independent of IndexReader.
> Initial contribution includes a performance test class but not had time as yet to work
up a formal Junit test.
> TimeLimitedIndexReader is coded as JDK1.5 but can easily be undone.

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