How to fire dependent rules in drools xls decision table - jboss

Question

PROBLEM :
I have three rule tables in Decision Table (Spreadsheet) the rules of first two rule table defines which rule is to be fired from the third rule table. In First rule table according to some conditions, I have updated the fact and this fact is used to fire a rule from second rule table. And in ACTION column of second rule table I have updated the fact and I want to fire rules in 3rd Rule table based on this updated fact, but because of updated fact the rule from the first table fires again and then second and the loop goes on.
I can't find the way to add RuleFlow-Group in rule table whenever I add RuleFlow-Group the rules stops firing for any fact.
WHAT I TRIED :
I have added No-Loop to true so that no rules are firing of the same rule table for the updated fact.
I tried adding LOCK-ON-ACTIVE attribute, rules from the Rule Table 1 are working fine but no other rules are getting firing.
I think after firing the rule from Rule Table 1 it locks all the rule of the Rule Package instead, I am adding "lock-on-active" in Rule Table, not in Rule Set.
Spread Sheet illustrating problem statement.

Answer 1

This is a very abstract set of rules, and I don't feel that it's worth discussing in depth. Updating a fact means it is re-evaluated wherever it occurs, which is in all rules. To avoid re-evaluation, use constraints that keep the rule from firing if the result of the RHS is already set in the fact.
rule "table_1_1"
when
$input: Input(a==1, b!=1)
then
modify( $input ){ setB( 1 ); }
end
rule "table_2_1"
when
$input: Input(b==1, c!=1)
then
modify( $input ){ setC( 1 ); }
end
The third table isn't using modify so it doesn't cause a loop.