Package org.apache.lucene.index

Examples of org.apache.lucene.index.RandomIndexWriter.deleteDocuments()

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    constantScore = new ConstantScoreQuery(filter);
    docs = searcher.search(constantScore, 1);
    assertEquals("[just filter] Should find a hit...", 1, docs.totalHits);

    // now delete the doc, refresh the reader, and see that it's not there
    writer.deleteDocuments(new Term("id", "1"));

    reader = refreshReader(reader);
    searcher.close();
    searcher = newSearcher(reader, false);
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    assertEquals("[just filter] Should find a hit...", 1, docs.totalHits);

    // now delete the doc, refresh the reader, and see that
    // it's not there
    _TestUtil.keepFullyDeletedSegments(writer.w);
    writer.deleteDocuments(new Term("id", "1"));

    reader = refreshReader(reader);
    searcher.close();
    searcher = newSearcher(reader, false);
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    IndexReader oldReader = reader;

    // make sure we get a cache hit when we reopen readers
    // that had no new deletions
    // Deletes nothing:
    writer.deleteDocuments(new Term("foo", "bar"));
    reader = refreshReader(reader);
    assertTrue(reader == oldReader);
    int missCount = filter.missCount;
    docs = searcher.search(constantScore, 1);
    assertEquals("[just filter] Should find a hit...", 1, docs.totalHits);
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    docs = searcher.search(constantScore, 1);
    assertEquals("[just filter] Should find a hit...", 1, docs.totalHits);
    assertEquals(missCount, filter.missCount);

    // now delete the doc, refresh the reader, and see that it's not there
    writer.deleteDocuments(new Term("id", "1"));

    reader = refreshReader(reader);
    searcher.close();
    searcher = newSearcher(reader, false);
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    }

    final int numDelDocs = atLeast(10);
    for(int i=0;i<numDelDocs;i++) {
      final String delID = ""+random.nextInt(numDocs);
      w.deleteDocuments(new Term("id", delID));
      aDocs.remove(delID);
    }

    final IndexReader r = w.getReader();
    w.close();
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    ConstantScoreQuery constantScore = new ConstantScoreQuery(filter);
    docs = searcher.search(constantScore, 1);
    assertEquals("[just filter] Should find a hit...", 1, docs.totalHits);

    // now delete the doc, refresh the reader, and see that it's not there
    writer.deleteDocuments(new Term("id", "1"));

    reader = refreshReader(reader);
    searcher.close();
    searcher = newSearcher(reader);
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    docs = searcher.search(constantScore, 1);
    assertEquals("[just filter] Should find a hit...", 1, docs.totalHits);
    assertEquals(missCount, filter.missCount);

    // now delete the doc, refresh the reader, and see that it's not there
    writer.deleteDocuments(new Term("id", "1"));

    reader = refreshReader(reader);
    searcher.close();
    searcher = newSearcher(reader);
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    ConstantScoreQuery constantScore = new ConstantScoreQuery(filter);
    docs = searcher.search(constantScore, 1);
    assertEquals("[just filter] Should find a hit...", 1, docs.totalHits);

    // now delete the doc, refresh the reader, and see that it's not there
    writer.deleteDocuments(new Term("id", "1"));

    reader = refreshReader(reader);
    searcher.close();
    searcher = newSearcher(reader);
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    docs = searcher.search(constantScore, 1);
    assertEquals("[just filter] Should find a hit...", 1, docs.totalHits);
    assertEquals(missCount, filter.missCount);

    // now delete the doc, refresh the reader, and see that it's not there
    writer.deleteDocuments(new Term("id", "1"));

    reader = refreshReader(reader);
    searcher.close();
    searcher = newSearcher(reader);
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    constantScore = new ConstantScoreQuery(filter);
    docs = searcher.search(constantScore, 1);
    assertEquals("[just filter] Should find a hit...", 1, docs.totalHits);

    // now delete the doc, refresh the reader, and see that it's not there
    writer.deleteDocuments(new Term("id", "1"));

    reader = refreshReader(reader);
    searcher.close();
    searcher = newSearcher(reader);
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