ABAP_to_the_Future

6
The Enhancement Framework and New BAdIs
You will see an overview of the implemen ting class (Figure 6.26). On the righthand
side, you can either change the class as a whole (for example, create a new
method or attribute) or click an existing method to change (or create) the implementation.
Figure 6.26 Changing a BAdI Class
Now, you are back in SE24 once more and can code as normal. When you’re
done, back on the Enhancement Implementation screen, the magic words The
implementation will be called now appear, which means that everything is
defined properly.
You set up some filters in the implementation definition earlier; that is, you said
what sort of data you were going to use as filters. Now that it’s implementation
time, you’re going to say what specific values to use as filters for this implementation.
In this example, you only want your BAdI called if this is Great Britain and if your
monster is a standard monster. On the Enhancement Implementation screen,
expand the tree on the left, and click Filter Values. The subscreen on the right
then changes to a blank area ready to be filled with filters. Click the Create Combination
icon. Because you need bothconditions to be true (AND), select both filters
in the ensuing pop-up box (Figure 6.27). If you wanted the BAdI to run if
either was true (OR), then you would select one at a time.
The screen then fills up with question marks, indicating that you need to add
some filter values. Go into each line, and add the specific value needed for this
BAdI—for example, the country GB (Figure 6.28).
248