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https://issues.apache.org/jira/browse/LUCENE-3360?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Martijn van Groningen updated LUCENE-3360:
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Attachment: LUCENE-3360-3x.patch
Attached patch for 3x branch.
The major difference between 3x and trunk:
* DocTerms is String[] and DocTermsIndex is StringIndex in 3x branch.
* In 3x SlowMultiReaderWrapper is only available for tests. I moved it to core.
In 3x SlowMultiReaderWrapper extends MultiReader whereas in trunk
SlowMultiReaderWrapper extends FilterIndexReader.
> 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: 3.4, 4.0
>
> Attachments: LUCENE-3360-3x.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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