[rules-users] Question / problem
Bruno Freudensprung
bruno.freudensprung at temis.com
Thu May 12 05:35:49 EDT 2011
You are right; your probably need to set a no-loop atttribute on your rule.
Or, preferably, put additional conditions to the LHS of your FirstRule
(it would probably be the case in a "real-life" rule).
As Wolfgang suggested, take some time to read Drools expert
documentation: I found it very well designed for beginners (like me).
Regards,
Bruno.
Le 12/05/2011 11:19, Nico ROEDERER a écrit :
> Ok, but when I did this, the first rule has no ending.
> If I don't want to, I've got to retract the object, but my second rule
> is never fired.
>
> Should I make two different files ?
>
> Thanks for the help.
> (Sorry for such a poor English writing :( )
>
> Le 12/05/2011 11:12, Bruno Freudensprung a écrit :
>>
>> Hi,
>>
>> In my understanding it is normal. However if you told Drools that
>> your FirstRule modified the $testDrools object, it should no longer
>> be the case:
>>
>> then
>> System.out.println("Set my value to 1");
>> $testDrools.setMyValue("1");
>> update($testDrools);
>>
>> Regards,
>>
>> Bruno.
>>
>>
>> Le 12/05/2011 10:58, Nico ROEDERER a écrit :
>>> Hi,
>>>
>>> I've got a little question. I've got a drl file which contains two
>>> rules :
>>>
>>> rule "FirstRule"
>>> salience 99
>>> when
>>> $testDrools : TestDroolsDto()
>>> eval ( 1 == 1 )
>>> then
>>> System.out.println("Set my value to 1");
>>> $testDrools.setMyValue("1");
>>>
>>> end
>>>
>>> rule "SecondRule"
>>> salience 1
>>> when
>>> $testDrools : TestDroolsDto()
>>> eval( $testDrools.getMyValue().equals("") )
>>> then
>>> System.out.println("My Value : " + $testDrools.getMyValue() );
>>> end
>>>
>>> Is it normal that in my second rule is verified ?
>>> -> eval( $testDrools.getMyValue().equals("") ) is true
>>> but : System.out.println("My Value : " + $testDrools.getMyValue() );
>>> show me that myValue == 1
>>>
>>> Perhaps I did something wrong ?
>>>
>>> Thanks for your helping me.
>>> N.
>>>
>>>
>>>
>>> PS : Here is me TestDroolsDto :
>>> public class TestDroolsDto {
>>> private String myValue;
>>>
>>> public TestDroolsDto() {
>>> myValue="";
>>> }
>>>
>>> public String toString() {
>>> return " --> " + myValue;
>>> }
>>>
>>> /**
>>> * @return the myValue
>>> */
>>> public String getMyValue() {
>>> if ( myValue == null ) {
>>> myValue = "";
>>> }
>>> return myValue;
>>> }
>>>
>>> /**
>>> * @param myValue the myValue to set
>>> */
>>> public void setMyValue( String myValue ) {
>>> this.myValue = myValue;
>>> }
>>> }
>>>
>>>
>>> _______________________________________________
>>> rules-users mailing list
>>> rules-users at lists.jboss.org
>>> https://lists.jboss.org/mailman/listinfo/rules-users
>>
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