public void read(org.apache.thrift.protocol.TProtocol iprot, TAppend struct) throws org.apache.thrift.TException {
      org.apache.thrift.protocol.TField schemeField;
      iprot.readStructBegin();
      while (true)
      {
        schemeField = iprot.readFieldBegin();
        if (schemeField.type == org.apache.thrift.protocol.TType.STOP) { 
          break;
        }
        switch (schemeField.id) {
          case 1: // TABLE
            if (schemeField.type == org.apache.thrift.protocol.TType.STRING) {
              struct.table = iprot.readBinary();
              struct.setTableIsSet(true);
            } else { 
              org.apache.thrift.protocol.TProtocolUtil.skip(iprot, schemeField.type);
            }
            break;
          case 2: // ROW
            if (schemeField.type == org.apache.thrift.protocol.TType.STRING) {
              struct.row = iprot.readBinary();
              struct.setRowIsSet(true);
            } else { 
              org.apache.thrift.protocol.TProtocolUtil.skip(iprot, schemeField.type);
            }
            break;
          case 3: // COLUMNS
            if (schemeField.type == org.apache.thrift.protocol.TType.LIST) {
              {
                org.apache.thrift.protocol.TList _list34 = iprot.readListBegin();
                struct.columns = new java.util.ArrayList<java.nio.ByteBuffer>(_list34.size);
                @org.apache.thrift.annotation.Nullable java.nio.ByteBuffer _elem35;
                for (int _i36 = 0; _i36 < _list34.size; ++_i36)
                {
                  _elem35 = iprot.readBinary();
                  struct.columns.add(_elem35);
                }
                iprot.readListEnd();
              }
              struct.setColumnsIsSet(true);
            } else { 
              org.apache.thrift.protocol.TProtocolUtil.skip(iprot, schemeField.type);
            }
            break;
          case 4: // VALUES
            if (schemeField.type == org.apache.thrift.protocol.TType.LIST) {
              {
                org.apache.thrift.protocol.TList _list37 = iprot.readListBegin();
                struct.values = new java.util.ArrayList<java.nio.ByteBuffer>(_list37.size);
                @org.apache.thrift.annotation.Nullable java.nio.ByteBuffer _elem38;
                for (int _i39 = 0; _i39 < _list37.size; ++_i39)
                {
                  _elem38 = iprot.readBinary();
                  struct.values.add(_elem38);
                }
                iprot.readListEnd();
              }
              struct.setValuesIsSet(true);
            } else { 
              org.apache.thrift.protocol.TProtocolUtil.skip(iprot, schemeField.type);
            }
            break;
          default:
            org.apache.thrift.protocol.TProtocolUtil.skip(iprot, schemeField.type);
        }
        iprot.readFieldEnd();
      }
      iprot.readStructEnd();

      // check for required fields of primitive type, which can't be checked in the validate method
      struct.validate();
    }
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