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https://issues.apache.org/jira/browse/LUCENE-1749?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12737889#action_12737889
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Mark Miller commented on LUCENE-1749:
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bq . Ie we want it to share as much of the code path as possible with how
searching was in fact done
Well of course ;) I was a bit hazy on explain, so for some reason I had it in
my head that you would have to combine the explanations from multiple
subreaders - but of course its a doc at a time, so the doc will only come from
one subreader, and the sim/weight will be top level. So easy peasy fix. That
boolean valuesFromSubReaders def had some code smell - just didn't have an
alternative at the moment - fix then improve !
I'll leave the 'explain at multiple levels' for another issue - I havn't even
started thinking about this issue yet - I prefer to code :) Which is kind of an
oxymoron.
{quote}
i don't have the code in front of me, but i thought i was adding the sub
readers to the list it's iterating over, so it will eventually recurse all
the way to the bottom.{quote}
Ah right, sorry about the false alarm. One of the few times I've seen .size()
in a for loop where its actually needed ;)
> FieldCache introspection API
> ----------------------------
>
> Key: LUCENE-1749
> URL: https://issues.apache.org/jira/browse/LUCENE-1749
> Project: Lucene - Java
> Issue Type: Improvement
> Components: Search
> Reporter: Hoss Man
> Priority: Minor
> Fix For: 2.9
>
> Attachments: fieldcache-introspection.patch,
> LUCENE-1749-hossfork.patch, LUCENE-1749.patch, LUCENE-1749.patch,
> LUCENE-1749.patch, LUCENE-1749.patch, LUCENE-1749.patch, LUCENE-1749.patch,
> LUCENE-1749.patch, LUCENE-1749.patch
>
>
> FieldCache should expose an Expert level API for runtime introspection of the
> FieldCache to provide info about what is in the FieldCache at any given
> moment. We should also provide utility methods for sanity checking that the
> FieldCache doesn't contain anything "odd"...
> * entries for the same reader/field with different types/parsers
> * entries for the same field/type/parser in a reader and it's subreader(s)
> * etc...
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