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https://issues.apache.org/jira/browse/LUCENE-743?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12535354
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Yonik Seeley commented on LUCENE-743:
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Having a read-only IndexReader would (should?) mean being able to remove
"synchronized" from some things like isDeleted()... a nice performance win for
multi-processor systems for things that didn't have access to the deleted-docs
bitvec.
> If our goal is to make them read-only (we can delete via IndexWriter already)
But you can only delete-by-term.
It's more powerful to be able to delete by docid, however I manage to come up
with it.
So I think deleteDocument(int id) should either be moved to a subclass. same
with setNorms?
> IndexReader.reopen()
> --------------------
>
> Key: LUCENE-743
> URL: https://issues.apache.org/jira/browse/LUCENE-743
> Project: Lucene - Java
> Issue Type: Improvement
> Components: Index
> Reporter: Otis Gospodnetic
> Assignee: Michael Busch
> Priority: Minor
> Fix For: 2.3
>
> Attachments: IndexReaderUtils.java, lucene-743-take2.patch,
> lucene-743.patch, lucene-743.patch, lucene-743.patch, MyMultiReader.java,
> MySegmentReader.java, varient-no-isCloneSupported.BROKEN.patch
>
>
> This is Robert Engels' implementation of IndexReader.reopen() functionality,
> as a set of 3 new classes (this was easier for him to implement, but should
> probably be folded into the core, if this looks good).
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