You can place ruleset control statements in the postlude of a rule.
last
The last stops ruleset execution after the current rule.
This example will stop execution of the ruleset if the rule that this postlude is contained in fires.
fired {
last
}
This example will stop execution of the ruleset if the rule that this postlude is contained in fires and x is equal to 4.
fired {
last if(x==4)
}
The following construct ensures that no rules below the current rule will ever be executed:
always {
last
}
The last control statement is used in the authorize-then-use pattern.