Function elements overview
Functions define how to transform data from an input document and how to send the transformed data to the output document.
Using the input data, functions can be called and the information returned by the function can then be forwarded to the output document. Data from an input document can be, for example, an item number regarding a price request on a product. Other sources can also be used in functions.
Functions can be predefined or user-defined. For user-defined specific transformations, use Java code.
To define the transformation sequence, drag the elements from the Functions palette and drop them in the space between the input and output-schema trees. This action will create a stack of elements performed from top to bottom.
Follow these rules in defining the transformation sequence:
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When connecting elements in the Mapping Editor, you can drop elements on acceptable areas only.
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To complement the Move Up/Down menu options, use drag and drop to move function and loop elements up and down in the mapping.
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Output data from functions can be used as input data in functions later on in the function sequence.