Show Table of Contents
21.5. Fibonacci Example: Bootstrap Rule
rule Bootstrap
when
f : Fibonacci( sequence == 1 || == 2, value == -1 ) // multi-restriction
then
modify ( f ){ value = 1 };
System.out.println( f.sequence + " == " + f.value );
end- When a
Fibonacciobject with a sequence field of 2 is asserted the Bootstrap rule is matched and activated along with the Recurse rule. - Note the multi-restriction on field
sequence, testing for equality with 1 or 2. - When a
Fibonacciobject with a sequence of 1 is asserted the Bootstrap rule is matched again, causing two activations for this rule. The Recurse rule does not match and activate because thenotconditional element stops the rule's matching as soon as aFibonacciobject with a sequence of 1 exists.
Where did the comment section go?
Red Hat's documentation publication system recently went through an upgrade to enable speedier, more mobile-friendly content. We decided to re-evaluate our commenting platform to ensure that it meets your expectations and serves as an optimal feedback mechanism. During this redesign, we invite your input on providing feedback on Red Hat documentation via the discussion platform.