public boolean equals(TTimeRange that) {
    if (that == null)
      return false;
    if (this == that)
      return true;

    boolean this_present_minStamp = true;
    boolean that_present_minStamp = true;
    if (this_present_minStamp || that_present_minStamp) {
      if (!(this_present_minStamp && that_present_minStamp))
        return false;
      if (this.minStamp != that.minStamp)
        return false;
    }

    boolean this_present_maxStamp = true;
    boolean that_present_maxStamp = true;
    if (this_present_maxStamp || that_present_maxStamp) {
      if (!(this_present_maxStamp && that_present_maxStamp))
        return false;
      if (this.maxStamp != that.maxStamp)
        return false;
    }

    return true;
  }
Returns true if field corresponding to fieldID is set (has been assigned a value) and false otherwise
hbase-thrift/src/main/java/org/apache/hadoop/hbase/thrift2/generated/TTimeRange.java