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https://issues.apache.org/jira/browse/LUCENE-831?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Mark Miller updated LUCENE-831:
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Attachment: LUCENE-831.patch
Okay, all fixed up and updated to trunk. All tests pass. Still some rough edges
for sure. Still probably going to revert FieldCache to its former self (though
internally, the API won't be used).
Back compat test run hasnt finished yet.
> Complete overhaul of FieldCache API/Implementation
> --------------------------------------------------
>
> Key: LUCENE-831
> URL: https://issues.apache.org/jira/browse/LUCENE-831
> Project: Lucene - Java
> Issue Type: Improvement
> Components: Search
> Reporter: Hoss Man
> Assignee: Mark Miller
> Fix For: 3.0
>
> Attachments: ExtendedDocument.java, fieldcache-overhaul.032208.diff,
> fieldcache-overhaul.diff, fieldcache-overhaul.diff,
> LUCENE-831-trieimpl.patch, 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
>
>
> 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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