Examples of org.apache.hadoop.hbase.regionserver.KeyValueHeap$KVScannerComparator

Package org.apache.hadoop.hbase.regionserver

Examples of org.apache.hadoop.hbase.regionserver.KeyValueHeap$KVScannerComparator

org.apache.hadoop.hbase.regionserver.KeyValueHeap
Implements a heap merge across any number of KeyValueScanners.
Implements KeyValueScanner itself.
This class is used at the Region level to merge across Stores and at the Store level to merge across the memstore and StoreFiles.
In the Region case, we also need InternalScanner.next(List), so this class also implements InternalScanner. WARNING: As is, if you try to use this as an InternalScanner at the Store level, you will get runtime exceptions.

      StoreFileScanner scanner = reader.getStoreFileScanner(false, false);
      scanner.seek(fakeKV); // have to call seek of each underlying scanner, otherwise KeyValueHeap won't work
      scanners.add(scanner);
    }
    assertTrue(!scanners.isEmpty());
    KeyValueScanner kvh = new KeyValueHeap(scanners, KeyValue.COMPARATOR);
    boolean seekOk = kvh.seek(fakeKV);
    assertTrue(seekOk);
    KeyValue kv = kvh.next();
    kvh.close();
    return kv;
  }

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      StoreFileScanner scanner = reader.getStoreFileScanner(false, false);
      scanner.seek(fakeKV); // have to call seek of each underlying scanner, otherwise KeyValueHeap won't work
      scanners.add(scanner);
    }
    assertTrue(!scanners.isEmpty());
    KeyValueScanner kvh = new KeyValueHeap(scanners, KeyValue.COMPARATOR);
    boolean seekOk = kvh.seek(fakeKV);
    assertTrue(seekOk);
    KeyValue kv = kvh.next();
    kvh.close();
    return kv;
  }

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      StoreFileScanner scanner = reader.getStoreFileScanner(false, false);
      scanner.seek(fakeKV); // have to call seek of each underlying scanner, otherwise KeyValueHeap won't work
      scanners.add(scanner);
    }
    assertTrue(!scanners.isEmpty());
    KeyValueScanner kvh = new KeyValueHeap(scanners, KeyValue.COMPARATOR);
    boolean seekOk = kvh.seek(fakeKV);
    assertTrue(seekOk);
    KeyValue kv = kvh.next();
    kvh.close();
    return kv;
  }

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