lucene-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Martijn van Groningen (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (LUCENE-3360) Move FieldCache to IndexReader
Date Thu, 04 Aug 2011 08:53:27 GMT

    [ https://issues.apache.org/jira/browse/LUCENE-3360?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13079279#comment-13079279
] 

Martijn van Groningen commented on LUCENE-3360:
-----------------------------------------------

Most of the work will be changing the code that is using FieldCache.DEFAULT field to use the
IndexReader.getFieldCache() method.I found 92 usages of the FieldCache.DEFAULT field in both
production and test code.


> 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: 4.0
>
>
> 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). 

--
This message is automatically generated by JIRA.
For more information on JIRA, see: http://www.atlassian.com/software/jira

        

---------------------------------------------------------------------
To unsubscribe, e-mail: dev-unsubscribe@lucene.apache.org
For additional commands, e-mail: dev-help@lucene.apache.org


Mime
View raw message