You can add a pass-through port to an XML Parser or XML Generator transformation to pass non-XML data through the transformation. When you define the port in the transformation, you add the port to the DataInput group in the XML Parser transformation or the DataOutput group in the XML Generator transformation.

Once you generate the pass-through port, you add another port to pass the data through the transformation. This port is the reference port. In an XML Parser transformation, the pass-through port passes the data into the transformation and the reference port passes the data out of the transformation. In an XML Generator, the pass-through port passes the data out of the transformation and the reference port passes data into the transformation.

If you have pass-through ports in an XML definition, you can determine the corresponding reference ports.

To determine the reference port for a pass-through port: