There is, since 5.2.0, the option of extending a class declared in DRL:

declare A
   i : int
end

declare B extends A
  ...
end

Any class origninating from Java code cannot be extended  in DRL.

-W

On 28 May 2011 10:56, Tomas Olsson <tol@sics.se> wrote:

Hi,
I have tried to look this up but cannot find any clear answer on the web.
Does drools support extension of existing classes for new type declarations?
That would be very nice if this would be possible.

/Tomas
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