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From "Tim Smith (JIRA)" <>
Subject [jira] Created: (LUCENE-1923) Add toString() or getName() method to IndexReader
Date Wed, 23 Sep 2009 13:31:16 GMT
Add toString() or getName() method to IndexReader

                 Key: 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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