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https://issues.apache.org/jira/browse/LUCENE-2691?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12935772#action_12935772
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Eks Dev commented on LUCENE-2691:
---------------------------------
strictly speaking not really this issue, but somehow fits into discussion about
IR.reopen() semantics.
What would be the best way to support the following case? (Imo, very often
needed. )
Directory d = FSDirectory.open("/path/to/somewhere"); // Nice
d_ram = RAMDirectory(d);
r_ram = IndexReader.open(d_ram);
r_ram.reload(); //Here we want to reload from the FSDirecotory?
Point being, reload need not only IR/IW semantics consideration, but Directory
as well.
Does this make sense?
A solution that looks doable would be to have "DiskBoundRAMDirectory extends
RAMDirectory", that would remain read-only and keep a reference to FSDirectory
(or whatewer Directory).
What is missing is a "signal" from IR.reload() to RAMdirectory to slurp fresh
information from FSDirecory?
> Consolidate Near Real Time and Reopen API semantics
> ---------------------------------------------------
>
> Key: LUCENE-2691
> URL: https://issues.apache.org/jira/browse/LUCENE-2691
> Project: Lucene - Java
> Issue Type: Improvement
> Reporter: Grant Ingersoll
> Assignee: Grant Ingersoll
> Priority: Minor
> Fix For: 4.0
>
> Attachments: LUCENE-2691.patch, LUCENE-2691.patch
>
>
> We should consolidate the IndexWriter.getReader and the IndexReader.reopen
> semantics, since most people are already using the IR.reopen() method, we
> should simply add::
> {code}
> IR.reopen(IndexWriter)
> {code}
> Initially, it could just call the IW.getReader(), but it probably should
> switch to just using package private methods for sharing the internals
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