Package org.apache.lucene.index

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

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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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    // 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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    addField(doc, groupField, "a", useDv);
    doc.add(new StringField("airport", "ams", Field.Store.NO));
    w.addDocument(doc);

    w.commit();
    w.deleteDocuments(new TermQuery(new Term("airport", "ams")));

    // 2
    doc = new Document();
    addField(doc, groupField, "a", useDv);
    doc.add(new StringField("airport", "ams", Field.Store.NO));
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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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    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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          idValues.put(idValue, version);
        } else {
          if (VERBOSE) {
            System.out.println("  delete " + idValue);
          }
          w.deleteDocuments(new Term("id", idValue));
          idValues.remove(idValue);
        }       
      }

      docUpto++;
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    iwc.setCodec(TestUtil.alwaysPostingsFormat(new IDVersionPostingsFormat()));
    RandomIndexWriter w = new RandomIndexWriter(random(), dir, iwc);
    Document doc = new Document();
    doc.add(makeIDField("id", 17));
    w.addDocument(doc);
    w.deleteDocuments(new Term("id", "id"));
    doc = new Document();
    doc.add(makeIDField("id", 17));
    w.addDocument(doc);
    w.commit();
    w.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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