public void setIdIsSet(boolean value) {
      __isset_bitfield = org.apache.thrift.EncodingUtils.setBit(__isset_bitfield, __ID_ISSET_ID, value);
    }
Returns true if field id is set (has been assigned a value) and false otherwise
hbase-thrift/src/main/java/org/apache/hadoop/hbase/thrift/generated/Hbase.java