ABAP_to_the_Future

Creating Rules in BRFplus: Basic Example 9.2
To create such a signature, navigate to the Signature tab in the function screen
shown in Figure 9.10. Go to the Context area (which means input data) at the top
of the screen, and click the Add New Data Object button. You are then asked if
you want to add one at a time, but because you have five input fields for the various
customer requirements (scariness and so forth) you’ll want to add them all at once.
For each input parameter you can specify a built-in type, like a number, but you
can also have an input parameter referr ing to an existing DDIC data element if
you want. Once you have added your data, the parameters are displayed in alphabetical
order (which is a pity, because it seems like logical order would be better;
however, it does make searching easier).
Once you’ve finished with the context (input data), it’s time to turn to the Result
Data Object. As can be seen in Figure 9.10, this object lives just below the Context
area. This is the object that the BRFp lus function will return to the calling
ABAP program to tell it what the outcome of the rule evaluation has been.
Figure 9.10 Full Signature of a Function
Click the action button to the right of Data Object, which is Ingredients in our
example. Now click Create and then specify what form the result should take (the
type of ingredients, in th is example) in exactly the same way that you specified
the data type of the input parameters.
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