void prepareGet(final Get get) throws IOException {
    checkRow(get.getRow(), "Get");
    // Verify families are all valid
    if (get.hasFamilies()) {
      for (byte[] family : get.familySet()) {
        checkFamily(family);
      }
    } else { // Adding all families to scanner
      for (byte[] family : this.htableDescriptor.getColumnFamilyNames()) {
        get.addFamily(family);
      }
    }
  }
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