Darko IVANCAN wrote: 
Hmm,

Right.
Size is not a property (getSize), thus (size==2) does not work.

I'm not sure,but  myList(size()==2) could work though.
you would have to do List() from myList, otherwise it assumes its reasoning over data asserted into the working memory - hmm I assume that works, never tried, as I'm not sure its a valid use case - just assert the object. You can use globals freely in field constraints. Remember the engine has no idea when globals change, so if they are used in the LHS they should be considered immutable.
Does it ?

darko


On 27/11/2007 15:09, Michael Zimmermann wrote:
  
Hi Darko,

  
    
Global java.util.List myList

rule "SomeOtherRule"
when
    myList(size==2);
then
...
end
    
      
Sorry, won't work. Unable to resolve object type 'diameters'. What works
though is:

rule "abc"
when
 eval (diameters.size() == 2)
then
 ...
end

cu, Michael



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