Package org.apache.lucene.index

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

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        iw2.commit();
      }
      if (random().nextInt(5) == 0) {
        final String term = RandomPicks.randomFrom(random(), terms);
        iw1.deleteDocuments(new Term("s", term));
        iw2.deleteDocuments(new Term("s", term));
      }
    }
    iw1.forceMerge(1);
    iw2.forceMerge(1);
    iw1.close();
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    // delete some docs
    int numDeletes = numDocs/20;
    for (int i = 0; i < numDeletes; i++) {
      Term toDelete = new Term("id", Integer.toString(random.nextInt(numDocs)));
      if (random.nextBoolean()) {
        iw.deleteDocuments(toDelete);
      } else {
        iw.deleteDocuments(new TermQuery(toDelete));
      }
    }
   
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    for (int i = 0; i < numDeletes; i++) {
      Term toDelete = new Term("id", Integer.toString(random.nextInt(numDocs)));
      if (random.nextBoolean()) {
        iw.deleteDocuments(toDelete);
      } else {
        iw.deleteDocuments(new TermQuery(toDelete));
      }
    }
   
    reader = iw.getReader();
    s1 = newSearcher(reader);
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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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    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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    // 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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      }
    }
   
    int numDeletions = random().nextInt(num/10);
    for (int i = 0; i < numDeletions; i++) {
      writer.deleteDocuments(new Term("id", Integer.toString(random().nextInt(num))));
    }
   
    reader = writer.getReader();
    searcher1 = newSearcher(reader);
    searcher2 = newSearcher(reader);
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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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