[JBoss JIRA] (DROOLS-1318) Using java enum when setting a variable of type enum does not work

Wednesday, 5 October 2016

    [
https://issues.jboss.org/browse/DROOLS-1318?page=com.atlassian.jira.plugi...
] 

Mario Fusco commented on DROOLS-1318:
-------------------------------------

I added an enum Type to our Address test pojo and used it in a test case as it follows

{code}
    @Test
    public void testMvelWithEnum() {
        String drl =
                "import " + Address.class.getCanonicalName() + ";\n"
+
                "rule R dialect \"mvel\" when\n" +
                "    $a : Address(type == Address.Type.OFFICE)\n" +
                "then\n" +
                "    $a.setType(Address.Type.HOME);\n" +
                "    update($a);\n" +
                "end";

        KieSession kieSession = new KieHelper().addContent(drl,
ResourceType.DRL).build().newKieSession();

        Address address = new Address();
        address.setType( Address.Type.OFFICE );
        kieSession.insert( address );
        kieSession.fireAllRules();

        assertEquals(Address.Type.HOME, address.getType());
    }
{code}

As you can see I'm using the enum in both LHS and RHS and it works as expected.

[~nheron] Please provide a reproducer for this issue.

...
 Using java enum when setting a variable of type enum does not work
 ------------------------------------------------------------------

                 Key: DROOLS-1318
                 URL: https://issues.jboss.org/browse/DROOLS-1318
             Project: Drools
          Issue Type: Bug
    Affects Versions: 6.4.0.Final
            Reporter: Nicolas Heron
            Assignee: Nicolas Heron
              Labels: OnBoarding

 In project https://github.com/chtiJBUG/onboarding-nautic-project
 when running the TestBirthday reduction
 TestBirthdayReduction : [Error: could not access/write property (seasonType) in:
org.chtijbug.example.swimmingpool.Period] [Near :
 the source code of the rule is 
 package org.training.leisure.swimmingpool;
 import java.lang.Number;
 import org.chtijbug.example.swimmingpool.CalculatedAttribute;
 import org.chtijbug.example.swimmingpool.Price;
 import org.chtijbug.example.swimmingpool.Person;
 import org.chtijbug.example.swimmingpool.Period;
 import org.chtijbug.example.swimmingpool.PriceType;
 rule "BirthdayReduction"
 	dialect "mvel"
 	ruleflow-group "reduction"
 	when
 		ccat : CalculatedAttribute( key == "IsPersonBirthday" , stringValue ==
"true" )
 		pper : Person( calculatedAttributeList contains ccat , sprice : standardPrice > 0.0B
)
 		not (pprice : Price( description == "BirthdayReduction" ) and Person(
priceList contains pprice , this == pper )) 
 		Period( seasonType == SeasonType.day )
 	then
 		Price nprice = new Price();
 		nprice.setDescription( "BirthdayReduction" );
 		nprice.setAmount( sprice.divide(new
BigDecimal("10.0"),BigDecimal.ROUND_HALF_UP) );
 		nprice.setPriceType( PriceType.promotion );
 		insert( nprice );
 		pper.addPrice( nprice );
 		modify( pper ) {
 				setPriceList( pper.getPriceList() )
 		}
 end 

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