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https://issues.apache.org/jira/browse/LUCENE-1923?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12758717#action_12758717
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Tim Smith commented on LUCENE-1923:
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I'll work up a patch that will do the following:
add getName() method to IndexReader (and all subclasses (SegmentReader,
DirectoryReader, MultiReader, any others i'm not currently aware of that i
track down)
have toString() return "indexreaderclassname(getName())"
so, toString for a SegmentReader will look something like:
"org.apache.lucene.index.SegmentReader(_ae)"
for a DirectoryReader, it'll look like:
"org.apache.lucene.index.DirectoryReader(segments_7)"
> Add toString() or getName() method to IndexReader
> -------------------------------------------------
>
> Key: LUCENE-1923
> URL: https://issues.apache.org/jira/browse/LUCENE-1923
> Project: Lucene - Java
> Issue Type: Wish
> Components: Index
> Reporter: Tim Smith
>
> It would be very useful for debugging if IndexReader either had a getName()
> method, or a toString() implementation that would get a string identification
> for the reader.
> for SegmentReader, this would return the same as getSegmentName()
> for Directory readers, this would return the "generation id"?
> for MultiReader, this could return something like "multi(sub reader name, sub
> reader name, sub reader name, ...)
> right now, i have to check instanceof for SegmentReader, then call
> getSegmentName(), and for all other IndexReader types, i would have to do
> something like get the IndexCommit and get the generation off it (and this
> may throw UnsupportedOperationException, at which point i have would have to
> recursively walk sub readers and try again)
> I could work up a patch if others like this idea
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