Map Input Nodes to the Output

Appendix : Legacy Presto components : Mashables and Mashups : Mashups in Business Analytics Wires : Creating Mashups in Wires : Add Actions or Other Blocks : Transform Results : Map Input Nodes to the Output

Mapping defines how data from the input document or other blocks populates the result of

Transform. You can map data fields

that you have manually added to the output structure or change mapping information automatically assigned from drag-and-drop additions.

1. Select the output data field

you want to map.

2. Set the Mapping option in the Output Node Settings panel.

3. Click

to open the Path Selector list and select:

A data field from the input document.

A data field from the results of any other block in the mashup.

An existing input field for the mashup.

Add a new input field.

Once mapped, the node properties show the mapping path:

You can map single fields to single fields or repeating fields in the output. Similarly, you can map repeating fields to single fields or repeating fields in the output. You can also map entire documents to output fields. The result will be:

From > To	Result
>	Single input value populates the single output field.
>	Single input value populates all the repeating output fields.
>	The values from all repeating input fields are joined, in order, with spaces between the values and this single joined value populates the output field.
>	Each repeating field populates a single corresponding output field.
Document > or	The full structure of the input document is appended as a child of the single or all repeating output fields.

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