A Data Handler is responsible for transforming the input and output types of an operation to the format used on the wire and visa versa.
数据处理程序负责将操作的输入和输出类型转换为有线使用的格式,反之亦然。
2
I also introduced the concept of a format-based handler which allows you to use the RPG input and output buffers as the mechanism for moving data between the RPG program and the handler.