Package org.apache.accumulo.core.client

Examples of org.apache.accumulo.core.client.Scanner.clearColumns()

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      if (!Arrays.equals(value, zero)) {
        throw new Exception("Bad key at " + entry);
      }
    }
   
    scanner.clearColumns();
    scanner.fetchColumnFamily(BulkPlusOne.MARKER_CF);
    RowIterator rowIter = new RowIterator(scanner);
   
    while (rowIter.hasNext()) {
      Iterator<Entry<Key,Value>> row = rowIter.next();
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        }
      }
     
      bw.flush();
     
      ms.clearColumns();
    }
   
    for (Entry<Key,Value> cell : ms) {
      Key key = cell.getKey();
     
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      }
    }
   
    // skip candidates that are still in use in the file column family in
    // the metadata table
    scanner.clearColumns();
    scanner.fetchColumnFamily(Constants.METADATA_DATAFILE_COLUMN_FAMILY);
    scanner.fetchColumnFamily(Constants.METADATA_SCANFILE_COLUMN_FAMILY);
    ColumnFQ.fetch(scanner, Constants.METADATA_DIRECTORY_COLUMN);
   
    TabletIterator tabletIterator = new TabletIterator(scanner, Constants.METADATA_KEYSPACE, false, true);
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    assertEquals(new HashSet<String>(Arrays.asList("2", "3")), getRows(scanner));
   
    scanner.fetchColumn(new Text("cf1"), new Text("cq2"));
    assertEquals(new HashSet<String>(Arrays.asList("1", "3")), getRows(scanner));
   
    scanner.clearColumns();
    scanner.fetchColumn(new Text("cf1"), new Text("cq1"));
    assertEquals(new HashSet<String>(), getRows(scanner));
   
    scanner.setRange(new Range("0", "4"));
    scanner.clearColumns();
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    scanner.clearColumns();
    scanner.fetchColumn(new Text("cf1"), new Text("cq1"));
    assertEquals(new HashSet<String>(), getRows(scanner));
   
    scanner.setRange(new Range("0", "4"));
    scanner.clearColumns();
    assertEquals(new HashSet<String>(Arrays.asList("2", "3")), getRows(scanner));
   
    scanner.setRange(new Range("2"));
    scanner.clearColumns();
    assertEquals(new HashSet<String>(Arrays.asList("2")), getRows(scanner));
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    scanner.setRange(new Range("0", "4"));
    scanner.clearColumns();
    assertEquals(new HashSet<String>(Arrays.asList("2", "3")), getRows(scanner));
   
    scanner.setRange(new Range("2"));
    scanner.clearColumns();
    assertEquals(new HashSet<String>(Arrays.asList("2")), getRows(scanner));
   
    scanner.setRange(new Range("4"));
    scanner.clearColumns();
    assertEquals(new HashSet<String>(), getRows(scanner));
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    scanner.setRange(new Range("2"));
    scanner.clearColumns();
    assertEquals(new HashSet<String>(Arrays.asList("2")), getRows(scanner));
   
    scanner.setRange(new Range("4"));
    scanner.clearColumns();
    assertEquals(new HashSet<String>(), getRows(scanner));
   
    scanner.setRange(new Range("4"));
    scanner.clearColumns();
    scanner.fetchColumn(new Text("cf1"), new Text("cq2"));
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    scanner.setRange(new Range("4"));
    scanner.clearColumns();
    assertEquals(new HashSet<String>(), getRows(scanner));
   
    scanner.setRange(new Range("4"));
    scanner.clearColumns();
    scanner.fetchColumn(new Text("cf1"), new Text("cq2"));
    scanner.fetchColumn(new Text("cf1"), new Text("cq4"));
    assertEquals(new HashSet<String>(Arrays.asList("4")), getRows(scanner));

  }
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    for (int i = 0; i < 200; i++) {
     
      // every time we search for column family 1, it will scan the entire file
      // that has mostly column family 0 until the bug is fixed
      scanner.setRange(new Range(String.format("%06d", i), null));
      scanner.clearColumns();
      scanner.setBatchSize(3);
      scanner.fetchColumnFamily(new Text(String.format("%03d", 1)));
     
      long t1 = System.currentTimeMillis();
      Iterator<Entry<Key,Value>> iter = scanner.iterator();
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      }
    }
   
    // skip candidates that are still in use in the file column family in
    // the metadata table
    scanner.clearColumns();
    scanner.fetchColumnFamily(Constants.METADATA_DATAFILE_COLUMN_FAMILY);
    scanner.fetchColumnFamily(Constants.METADATA_SCANFILE_COLUMN_FAMILY);
    Constants.METADATA_DIRECTORY_COLUMN.fetch(scanner);
   
    TabletIterator tabletIterator = new TabletIterator(scanner, Constants.METADATA_KEYSPACE, false, true);
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