[rules-users] AgendaFilter not working as expected
Brian Enderle
brianke at gmail.com
Wed Aug 22 22:55:42 EDT 2007
I have many rules in which I have named the various rules by the level at
which the rules are to be fired, for instance:
rule "LevelOne: Name cannot be null"
when
Person(firstNm == null)
then
<log an error>
end
rule "LevelTwo: Street cannot be null"
when
Person(street== null)
then
<log an error>
end
Within my Java code I first insert all objects into a statefulSession, then
add all my globals. I then use a switch statement to call different methods
to perform the various levels of validation (ie: performLevelOneValidation(),
performLevelTwoValidation(), etc.). Each of these methods calls a common
method, performValidation(String validationLevel) which I want to use to fire
the rules of just the validation level supplied. I am doing this with:
statefulSession.fireAllRules(new RuleNameStartsWithAgendaFilter
(validationLevel));
In some cases I need to perform multiple levels of validation (if anything
over Level One validation is called, all preceding levels also need to be
validated) and need to perform them in order for reporting purposes. My code
correctly calls my performaValidation() method with the correct
validationLevel but the only rules that fire are those with "LevelOne" in the
rule name.
I know the data, the rules, the globals, etc are all present for firing rules
in a level other than level one and that I should get some mathces to my rules
but I am not getting anything to match outside of Level One.
I can only assume that the rules other than Level One are not firing and that
I am missing something within my code that fires the rules for other levels.
Am I misunderstanding how the AgendaFilter works? Should I be using something
else like agenda-group to accomplish this segregation of rules?
Also, my rules and data objects do not change as the rules are run. I simply
display a list of errors found. Would it benefit me to use sequential mode
and would this help me in trying to segerate the rules into various levels?
Thanks in advance,
Brian Enderle
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