CODEWITHSUNDEEP
javadroolsrule-enginekie
Saum
Saum

Reputation: 65

How to access Facts created inside a DRL from a KieSession?

I create a DRL file as below -

rule 'CHECK_AGE_LIMIT'
       when        
              $payroll : Payroll();
              Participant(null != dob, $dob : dob);
              Plan(null!= eligibilityAge, $eligibilityAge:eligibilityAge);
              eval (!(Period.between($dob, LocalDate.now()).getYears() > $eligibilityAge))
       then
            Result $result = new Result(false, "Age Eligibility Not Met");
            insert( $result ); 
       end

How can I access the result from the calling Java class.

This is how I call the DRL -

    commands.add(CommandFactory.newFireAllRules());
    commands.add(CommandFactory.newGetObjects(GET_OBJECTS_KEY));
    ExecutionResults executionResults = kSession.execute(CommandFactory.newBatchExecution(commands));

While I can access all the Facts that I passed on to the DRL, I cant seem to find a way to access, how to Access result.

I know that I can just pass Result as a fact to the DRL. Just want to understand if there's a way to access something that is created inside the DRL.

Upvotes: 0

Views: 341

Answers (1)

Anton Giertli
Anton Giertli

Reputation: 936

I believe the getObjectsCommands is a way to go. Please make sure you are passing proper filter - it seems you are passing String into getObjectsCommand constructor, which is specifying "output-identifier" and not the filter. Here is an example, which should be compatible with your use case:

ObjectFilter filter = new ObjectFilter() {
    @Override
    public boolean accept(Object object) {
        if (object instanceof Result) {
            return true;
        }
        return false;
    }
};
commands.add(CommandFactory.newGetObjects(filter));

Upvotes: 1

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