Data Streaming Versus Payload Data Transfer

Use of the InputStreamAdapter and OutputStreamAdapter nodes is an alternative to using the Payload node as follows:

• Use these stream adapter nodes to transfer data if you want data streaming.

• Use the Payload node for a data transfer without data streaming (payload data transfer).

All operations that, in payload data transfer, read from the Payload node require the InputStreamAdapter node when you are setting up data streaming. Using the same logic, all operations that, in payload data transfer, write to the Payload node require OutputStreamAdapter node for data streaming.

Do not confuse the stream adapter nodes with the get() and put() methods on the OTDs. For example, the BatchFTP OTD’s client interface get() method writes to the Payload node during a payload transfer, so it requires an OutputStreamAdapter node to write to for data streaming. In contrast, the record-processing OTD’s get() method reads from the Payload node during a payload transfer, so for data streaming, get() requires an inputStreamAdapter node to read from.