@Override
  public String toString() {
    return new ToStringBuilder(this).append("column", column).append("timestamp", timestamp)
      .append("value", getValue()).toString();
  }
Makes a column in family:qualifier form from separate byte arrays with offset and length.
<p>
Not recommended for usage as this is old-style API.
@return family:qualifier
hbase-rest/src/main/java/org/apache/hadoop/hbase/rest/model/CellModel.java