@Override
  public Result get(final Get get) throws IOException {
    prepareGet(get);
    List<Cell> results = get(get, true);
    boolean stale = this.getRegionInfo().getReplicaId() != 0;
    return Result.create(results, get.isCheckExistenceOnly() ? !results.isEmpty() : null, stale);
  }
Determines if the specified row is within the row range specified by the specified RegionInfo
@param info RegionInfo that specifies the row range
@param row  row to be checked
@return true if the row is within the range specified by the RegionInfo
hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/HRegion.java