[rules-users] Scala-Drools Guvnor

[Jean-Marc Vanel]

Hi Oggu

When you have a property pp in your Scala,
the Scala compiler generates a method pp(), not getPp() as Drools and many
Java tools expect (the JavaBeans specification).

Try this to see what happens;

echo 'case class C1 ( pp1: Int, var pp2:String )' > case_class.scala
scalac case_class.scala
javap C1.class | grep pp
  public int pp1();
  public java.lang.String pp2();
  public void pp2_$eq(java.lang.String);

Instead in Scala you can do:

import scala.reflect.{BeanProperty, BooleanBeanProperty}
class C1 {
  @BeanProperty val pp1: Int = 0;
  @BeanProperty var pp2:String = ""
}


2014-01-25 swaroop <swaroop.oggu at gmail.com>

> Hi ,
>
> Does Guvnor or RuleWorkbench support the scala object model(Exported as
> jar)
> ? When i tried with simple scala case classes, I was able to upload the
> model(After adding the scala lib to Guvnor Lib directory) but was not able
> to see the classes when iam composing a rule . Any pointers would be
> helpful
>
> Regards
> Oggu
>
>
>
> --
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-- 
Jean-Marc Vanel
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Rule-based programming, Semantic Web
http://deductions-software.com/
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