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https://issues.apache.org/jira/browse/LUCENE-831?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12698423#action_12698423
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Mark Miller edited comment on LUCENE-831 at 4/13/09 9:24 AM:
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Okay, good point. I've got to take a closer look at what we are required to
support for remote searching.
I think your right though, we probably won't end up needing the factory. For
right now, the way I set the DEFAULT, we need it to get remote tests to pass.
But that is all very loose right now - when the caching mechanism is fixed up,
I think the whole DEFAULT_VALUE_SOURCE will be cleaned right up - especially
having to set it there on the SortField.
I think we have to support remote for CustomFieldComparator, but I guess
wouldnt have to for ValueSource.
was (Author: [email protected]):
Okay, good point. I've got to take a closer look at what we are required to
support for remote searching.
> 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
>
>
> 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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