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Posted to dev@lucene.apache.org by "Michael McCandless (Commented) (JIRA)" <ji...@apache.org> on 2011/11/13 19:27:51 UTC
[jira] [Commented] (LUCENE-3360) Move FieldCache to IndexReader
[ https://issues.apache.org/jira/browse/LUCENE-3360?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13149326#comment-13149326 ]
Michael McCandless commented on LUCENE-3360:
--------------------------------------------
I think this can proceed, now that LUCENE-3443 is done!
> Move FieldCache to IndexReader
> ------------------------------
>
> Key: LUCENE-3360
> URL: https://issues.apache.org/jira/browse/LUCENE-3360
> Project: Lucene - Java
> Issue Type: Improvement
> Reporter: Martijn van Groningen
> Fix For: 3.5, 4.0
>
> Attachments: LUCENE-3360-3x.patch, LUCENE-3360-3x.patch, LUCENE-3360-3x.patch, LUCENE-3360.patch, LUCENE-3360.patch, LUCENE-3360.patch, LUCENE-3360.patch, LUCENE-3360.patch, LUCENE-3360.patch, LUCENE-3360.patch
>
>
> Move the static FieldCache.DEFAULT field instance to atomic IndexReaders, so that FieldCache insanity caused by the WeakHashMap no longer occurs.
> * Add a new method to IndexReader that by default throws an UOE:
> {code}public FieldCache getFieldCache(){code}
> * The SegmentReader implements this method and returns its own internal FieldCache implementation. This implementation just uses a HashMap<Entry<T>,Object>> to store entries.
> * The SlowMultiReaderWrapper implements this method as well and basically behaves the same as the current FieldCacheImpl.
> This issue won't solve the insanity that comes from inconsistent usage of a single field (for example retrieve both int[] and DocTermIndex for the same field).
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