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Posted to dev@lucene.apache.org by "Uwe Schindler (JIRA)" <ji...@apache.org> on 2013/05/10 01:06:27 UTC
[jira] [Updated] (LUCENE-831) Complete overhaul of FieldCache
API/Implementation
[ https://issues.apache.org/jira/browse/LUCENE-831?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Uwe Schindler updated LUCENE-831:
---------------------------------
Fix Version/s: (was: 4.3)
4.4
> Complete overhaul of FieldCache API/Implementation
> --------------------------------------------------
>
> Key: LUCENE-831
> URL: https://issues.apache.org/jira/browse/LUCENE-831
> Project: Lucene - Core
> Issue Type: Improvement
> Components: core/search
> Reporter: Hoss Man
> Fix For: 4.4
>
> Attachments: ExtendedDocument.java, fieldcache-overhaul.032208.diff, fieldcache-overhaul.diff, fieldcache-overhaul.diff, LUCENE-831.03.28.2008.diff, LUCENE-831.03.30.2008.diff, LUCENE-831.03.31.2008.diff, LUCENE-831.patch, LUCENE-831.patch, LUCENE-831.patch, LUCENE-831.patch, LUCENE-831.patch, LUCENE-831.patch, LUCENE-831.patch, LUCENE-831.patch, LUCENE-831.patch, LUCENE-831.patch, LUCENE-831.patch, LUCENE-831.patch, LUCENE-831.patch, LUCENE-831.patch, LUCENE-831-trieimpl.patch
>
>
> Motivation:
> 1) Complete overhaul the API/implementation of "FieldCache" type things...
> a) eliminate global static map keyed on IndexReader (thus
> eliminating synch block between completley independent IndexReaders)
> b) allow more customization of cache management (ie: use
> expiration/replacement strategies, disk backed caches, etc)
> c) allow people to define custom cache data logic (ie: custom
> parsers, complex datatypes, etc... anything tied to a reader)
> d) allow people to inspect what's in a cache (list of CacheKeys) for
> an IndexReader so a new IndexReader can be likewise warmed.
> e) Lend support for smarter cache management if/when
> IndexReader.reopen is added (merging of cached data from subReaders).
> 2) Provide backwards compatibility to support existing FieldCache API with
> the new implementation, so there is no redundent caching as client code
> migrades to new API.
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