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Date: Thu, 11 Dec 2008 12:12:46 -0800 (PST)
From: "Doug Cutting (JIRA)" <jira@apache.org>
To: java-dev@lucene.apache.org
Subject: [jira] Commented: (LUCENE-1483) Change IndexSearcher to use
 MultiSearcher semantics for multiple subreaders
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    [ https://issues.apache.org/jira/browse/LUCENE-1483?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12655761#action_12655761 ] 

Doug Cutting commented on LUCENE-1483:
--------------------------------------

Could we add a new class like

{code}
public abstract class Hitable {
  public abstract void setBase(int base);
  public abstract void hit(int doc, float score);
}
{code}

upgrade everything in trunk to use this, and change HitCollector to:

{code}
/** @deprecated */
public abstract class HitCollector extends Hitable {
  public abstract void setBase() { throw new UOE(); }
}
{code}

then, for back-compatiblity, wrap anything that extends HitCollector to rebase?

Then you'd have neither an isSupported method nor use exceptions for control.


> Change IndexSearcher to use MultiSearcher semantics for multiple subreaders
> ---------------------------------------------------------------------------
>
>                 Key: LUCENE-1483
>                 URL: https://issues.apache.org/jira/browse/LUCENE-1483
>             Project: Lucene - Java
>          Issue Type: Improvement
>    Affects Versions: 2.9
>            Reporter: Mark Miller
>            Priority: Minor
>         Attachments: LUCENE-1483.patch, LUCENE-1483.patch, LUCENE-1483.patch, LUCENE-1483.patch, LUCENE-1483.patch, LUCENE-1483.patch, LUCENE-1483.patch, LUCENE-1483.patch, LUCENE-1483.patch
>
>
> FieldCache and Filters are forced down to a single segment reader, allowing for individual segment reloading on reopen.

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