public void setLastheartbeat(long lastheartbeat) {
    this.lastheartbeat = lastheartbeat;
    setLastheartbeatIsSet(true);
  }
Returns true if field txnid is set (has been assigned a value) and false otherwise
standalone-metastore/metastore-common/src/gen/thrift/gen-javabean/org/apache/hadoop/hive/metastore/api/ShowLocksResponseElement.java