@Override
    public void read(org.apache.thrift.protocol.TProtocol prot, TAppend 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)) {
        {
          org.apache.thrift.protocol.TList _list44 = iprot.readListBegin(org.apache.thrift.protocol.TType.STRING);
          struct.columns = new java.util.ArrayList<java.nio.ByteBuffer>(_list44.size);
          @org.apache.thrift.annotation.Nullable java.nio.ByteBuffer _elem45;
          for (int _i46 = 0; _i46 < _list44.size; ++_i46)
          {
            _elem45 = iprot.readBinary();
            struct.columns.add(_elem45);
          }
        }
        struct.setColumnsIsSet(true);
      }
      if (incoming.get(3)) {
        {
          org.apache.thrift.protocol.TList _list47 = iprot.readListBegin(org.apache.thrift.protocol.TType.STRING);
          struct.values = new java.util.ArrayList<java.nio.ByteBuffer>(_list47.size);
          @org.apache.thrift.annotation.Nullable java.nio.ByteBuffer _elem48;
          for (int _i49 = 0; _i49 < _list47.size; ++_i49)
          {
            _elem48 = iprot.readBinary();
            struct.values.add(_elem48);
          }
        }
        struct.setValuesIsSet(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/TAppend.java