Examples of org.apache.lucene.index.IndexWriter.numDocs()

Class org.apache.lucene.index.IndexWriter

Examples of org.apache.lucene.index.IndexWriter.numDocs()

org.apache.lucene.index.IndexWriter.numDocs()
Returns total number of docs in this index, including docs not yet flushed (still in the RAM buffer), and including deletions. NOTE: buffered deletions are not counted. If you really need these to be counted you should call {@link #commit()} first. @see #numDocs

        Assert.assertTrue("writer has no deletions", w.hasDeletions());


      Assert.assertEquals("writer is missing some deleted docs", 
                          numDeletedDocs, w.maxDoc());
      Assert.assertEquals("writer has non-deleted docs", 
                          0, w.numDocs());
      w.close();
      IndexReader r = IndexReader.open(d, true);
      Assert.assertEquals("reader has wrong number of deleted docs", 
                          numDeletedDocs, r.numDeletedDocs());
      r.close();

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        Assert.assertTrue("writer has no deletions", w.hasDeletions());


      Assert.assertEquals("writer is missing some deleted docs", 
                          numDeletedDocs, w.maxDoc());
      Assert.assertEquals("writer has non-deleted docs", 
                          0, w.numDocs());
      w.close();
      IndexReader r = IndexReader.open(d, true);
      Assert.assertEquals("reader has wrong number of deleted docs", 
                          numDeletedDocs, r.numDeletedDocs());
      r.close();

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    indexFile(writer, "/path/file14.txt", "some file with body-css-style ");
    indexFile(writer, "/path/file15.txt", "Assert.assertEquals(\"Setter\", expected (new MethodClassifier) is");
    indexFile(writer, "/path/file16.txt", "class MethodClassifier() { Integer a = new Integer(1); String s = new String(); } ");
    indexFile(writer, "/path/file17.txt", "MethodClassifier(); main() { class Different { static class B; } }");
    
    numDocs = writer.numDocs();
    writer.close();
  }


  private static void indexFile(IndexWriter writer, String path, String contents) throws CoreException, IOException 
  {

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    query.add(new TermQuery(artifactTerm), Occur.MUST);
    Term versionTerm = new Term(FIELD_VERSION, pom.version);
    query.add(new TermQuery(versionTerm), Occur.MUST);
    
    IndexWriter writer = getIndexWriter(repository);
    int numDocsBefore = writer.numDocs();
    writer.deleteDocuments(query);
    writer.commit();
    int numDocsAfter = writer.numDocs();
    if (numDocsBefore == numDocsAfter) {
      logger.fine(MessageFormat.format("no records found to delete {0}", query.toString()));

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    IndexWriter writer = getIndexWriter(repository);
    int numDocsBefore = writer.numDocs();
    writer.deleteDocuments(query);
    writer.commit();
    int numDocsAfter = writer.numDocs();
    if (numDocsBefore == numDocsAfter) {
      logger.fine(MessageFormat.format("no records found to delete {0}", query.toString()));
      return false;
    } else {
      logger.fine(MessageFormat.format("deleted {0} records with {1}", numDocsBefore - numDocsAfter, query.toString()));

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        Assert.assertTrue("writer has no deletions", w.hasDeletions());


      Assert.assertEquals("writer is missing some deleted docs", 
                          numDeletedDocs, w.maxDoc());
      Assert.assertEquals("writer has non-deleted docs", 
                          0, w.numDocs());
      w.close();
      IndexReader r = IndexReader.open(d, true);
      Assert.assertEquals("reader has wrong number of deleted docs", 
                          numDeletedDocs, r.numDeletedDocs());
      r.close();

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        Assert.assertTrue("writer has no deletions", w.hasDeletions());


      Assert.assertEquals("writer is missing some deleted docs", 
                          numDeletedDocs, w.maxDoc());
      Assert.assertEquals("writer has non-deleted docs", 
                          0, w.numDocs());
      w.close();
      IndexReader r = IndexReader.open(d, true);
      Assert.assertEquals("reader has wrong number of deleted docs", 
                          numDeletedDocs, r.numDeletedDocs());
      r.close();

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        Assert.assertTrue("writer has no deletions", w.hasDeletions());


      Assert.assertEquals("writer is missing some deleted docs", 
                          numDeletedDocs, w.maxDoc());
      Assert.assertEquals("writer has non-deleted docs", 
                          0, w.numDocs());
      w.close();
      IndexReader r = IndexReader.open(d, true);
      Assert.assertEquals("reader has wrong number of deleted docs", 
                          numDeletedDocs, r.numDeletedDocs());
      r.close();

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