Package org.apache.lucene.index

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

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            new MockAnalyzer(random, MockTokenizer.KEYWORD, false)));
    for (int docNum = 0; docNum < nDocs; docNum++) {
      writer.addDocument(docFactory.getDoc(docNum));
    }
    // Delete documents marked for deletion
    writer.deleteDocuments(new Term(DocumentFactory.field, DocumentFactory.delTxt));
    writer.close();

    // Open a fresh read-only reader with the deletions in place
    return DirectoryReader.open(dir);
  }
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    final RandomIndexWriter iw2 = new RandomIndexWriter(new Random(seed), dir2, iwc2);
    for (int i = 0; i < numDocs; ++i) {
      if (random().nextInt(5) == 0 && i != numDocs - 1) {
        final String term = RandomPicks.randomFrom(random(), terms);
        iw1.deleteDocuments(new Term("s", term));
        iw2.deleteDocuments(new Term("s", term));
      }
      final Document doc = randomDocument();
      iw1.addDocument(doc);
      iw2.addDocument(doc);
      if (random().nextInt(8) == 0) {
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      idField.setStringValue(Integer.toString(i));
      titleField.setStringValue(fieldValue(1));
      bodyField.setStringValue(fieldValue(3));
      iw.addDocument(doc);
      if (random().nextInt(20) == 0) {
        iw.deleteDocuments(new Term("id", Integer.toString(i)));
      }
    }
    if (random().nextBoolean()) {
      // delete 1-100% of docs
      iw.deleteDocuments(new Term("title", terms[random().nextInt(terms.length)]));
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        iw.deleteDocuments(new Term("id", Integer.toString(i)));
      }
    }
    if (random().nextBoolean()) {
      // delete 1-100% of docs
      iw.deleteDocuments(new Term("title", terms[random().nextInt(terms.length)]));
    }
    iw.close();
    dir.close(); // checkindex
  }
 
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    // make sure we get a cache hit when we reopen reader
    // that had no change to deletions

    // fake delete (deletes nothing):
    writer.deleteDocuments(new Term("foo", "bar"));

    IndexReader oldReader = reader;
    reader = refreshReader(reader);
    assertTrue(reader == oldReader);
    int missCount = filter.missCount;
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    // cache hit:
    assertEquals(missCount, filter.missCount);

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

    // NOTE: important to hold ref here so GC doesn't clear
    // the cache entry!  Else the assert below may sometimes
    // fail:
    oldReader = reader;
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    docs = searcher.search(constantScore, 1);
    assertEquals("[just filter] Should find a hit...", 2, 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 = newSearcher(reader, false);

    docs = searcher.search(new MatchAllDocsQuery(), filter, 1);
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    for (Integer id : ids) {
      if (random.nextDouble() < 0.2) {
        if (VERBOSE) {
          System.out.println("delete doc_id " + id);
        }
        writer.deleteDocuments(new Term(ID_FIELD, id.toString()));
      }
    }
    writer.close();
  }
 
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        if (!doc.deleted) {
          if (VERBOSE) {
            System.out.println("  delete id=" + doc.id);
          }
          doc.deleted = true;
          w.deleteDocuments(new Term("id", doc.id));
          delCount++;
        }
      }
    }
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        if (!doc.deleted) {
          if (VERBOSE) {
            System.out.println("  delete id=" + doc.id);
          }
          doc.deleted = true;
          w.deleteDocuments(new Term("id", doc.id));
          delCount++;
        }
      }
    }
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