@Override
    public void read(org.apache.thrift.protocol.TProtocol prot, TIncrement struct) throws org.apache.thrift.TException {
      org.apache.thrift.protocol.TTupleProtocol iprot = (org.apache.thrift.protocol.TTupleProtocol) prot;
      java.util.BitSet incoming = iprot.readBitSet(4);
      if (incoming.get(0)) {
        struct.table = iprot.readBinary();
        struct.setTableIsSet(true);
      }
      if (incoming.get(1)) {
        struct.row = iprot.readBinary();
        struct.setRowIsSet(true);
      }
      if (incoming.get(2)) {
        struct.column = iprot.readBinary();
        struct.setColumnIsSet(true);
      }
      if (incoming.get(3)) {
        struct.ammount = iprot.readI64();
        struct.setAmmountIsSet(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/thrift/generated/TIncrement.java