Adding input/output parameters
Use this procedure to add input/output parameters in a mapping. These parameters contain input or output arguments and can be dropped on a Java function, or on a Boolean function.
Note: Boolean functions should have input parameters only.
If you want to link an input Document element to a function, or if you want to link an output Document element to a function, a more convenient way to create parameters is to drag and drop the document element to the function. A parameter will then automatically be created with the same name as the document element. A link to the parameter is created at the same time.