Hello everybody:

I'm trying to write rules in which fact int attributes and fact String attributes should be compared in condition elements. When I compare them, let's say from int to String,

rule
 when
     Fact1($intAttr : attrInt1)
     Fact2(attrString == $intAttr)
....

the rule seems to behave OK, whereas when I compare them from String to int,

rule
 when
     Fact1($stringAttr : attrString1)
     Fact2(attrInt == $stringAttr)
....

I get a RuntimeDroolsException( "Conversion to long not supported from java.lang.String").

I've taken a look at the code which throws the exception, BaseObjectClassField.getLongValue() and found that it only accepts Number and Date objects to be converted to long.

...
        if ( value instanceof Number ) {
            return ((Number) value).longValue();
        } else if ( value instanceof Date ) {
            return ((Date) value).getTime();
        }
...

Is it possible to add String to long conversion via Long.parseLong(str) or is there any reason not to allow this conversion?.

Thank you again for your time.

Best regards,

Manuel Ortiz.