ABAP_to_the_Future

9
BRFplus
In the pop-up shown in Figure 9.12, you define the name of the ruleset. You will
note the “RS_” (for “ruleset”) prefix to the technical name, but you can specify any
name you desire. Click Create And Navigate To Object , and the screen shown
in Figure 9.13 appears.
Figure 9.13 Ruleset Definition Screen
In the middle of Figure 9.13, you will see a Variables section; this is for defining
variables that are used internally within the ruleset and are not part of the function
signature. Function context (the input variables), function result (the output
variable), and ruleset variables (which you might think of as variables local to the
ruleset) make up the execution context of an expression or a rule. As soon as a
rule or expression is assigned to a function, those data objects can be provided for
use in the rule.
The ruleset definition screen shown in Fi gure 9.13 has a list of rules at the bottom.
Naturally, the list will be empty whenyou start, so use the dropdown on the
Insert Rule button, and choose the Create option. The screen shown in Figure
9.14 appears.
In this screen, you’ll see what looks like an IF/THEN/ELSE statement in ABAP. Use
the dropdown on the Add text just after the THEN statement, and choose Process
Expression from the resulting context menu. Hooray! You’ve reached your destination.
372