[ http://issues.apache.org/jira/browse/LUCENE-479?page=all ]
Doug Cutting resolved LUCENE-479:
---------------------------------
Fix Version: 1.9
Resolution: Fixed
I committed this. Thanks!
> MultiReader.numDocs incorrect after undeleteAll
> -----------------------------------------------
>
> Key: LUCENE-479
> URL: http://issues.apache.org/jira/browse/LUCENE-479
> Project: Lucene - Java
> Type: Bug
> Components: Index
> Versions: CVS Nightly - Specify date in submission
> Reporter: Robert Kirchgessner (JIRA)
> Priority: Minor
> Fix For: 1.9
> Attachments: undeleteAll.patch
>
> Calling MultiReader.undeleteAll does not clear cached numDocs value. So the
> subsequent numDocs() call returns a wrong value if there were deleted
> documents in the index. Following patch fixes the bug and adds a test showing
> the issue.
> Index: src/test/org/apache/lucene/index/TestMultiReader.java
> ===================================================================
> --- src/test/org/apache/lucene/index/TestMultiReader.java (revision
> 354923)
> +++ src/test/org/apache/lucene/index/TestMultiReader.java (working copy)
> @@ -69,6 +69,18 @@
> assertTrue(vector != null);
> TestSegmentReader.checkNorms(reader);
> }
> +
> + public void testUndeleteAll() throws IOException {
> + sis.read(dir);
> + MultiReader reader = new MultiReader(dir, sis, false, readers);
> + assertTrue(reader != null);
> + assertEquals( 2, reader.numDocs() );
> + reader.delete(0);
> + assertEquals( 1, reader.numDocs() );
> + reader.undeleteAll();
> + assertEquals( 2, reader.numDocs() );
> + }
> +
> public void testTermVectors() {
> MultiReader reader = new MultiReader(dir, sis, false, readers);
> Index: src/java/org/apache/lucene/index/MultiReader.java
> ===================================================================
> --- src/java/org/apache/lucene/index/MultiReader.java (revision 354923)
> +++ src/java/org/apache/lucene/index/MultiReader.java (working copy)
> @@ -122,6 +122,7 @@
> for (int i = 0; i < subReaders.length; i++)
> subReaders[i].undeleteAll();
> hasDeletions = false;
> + numDocs = -1; // invalidate cache
> }
> private int readerIndex(int n) { // find reader for doc n:
--
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