在每个数据处理步骤之后，设置一个 PUT（将数据传输到主内存）和一个 GET（获得下一组数据）。

After each data processing step, you set up both a PUT to transfer the data to main memory and a GET to get the next batch of data.

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值得注意的是，如果启用Propagate protocol header，则标头仅对数据处理程序可用，这是缺省设置。

It is worth noting that the headers are only available to the Data Handler if Propagate protocol header is enabled, which it is by default.

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另外，绑定组件被设置为使用自定义数据处理程序配置Checkout Configuration。

The binding component is also set up to use the custom data handler configuration CheckoutConfiguration.

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