It doesn't work:<br><br> declare Customer extends Person<br><br>is declined with<br><br> Cannot extend supertype 'date.cust.Person' (not a declared type)<br><br>-W<br><br><div class="gmail_quote">2011/5/28 Edson Tirelli <span dir="ltr"><<a href="mailto:ed.tirelli@gmail.com">ed.tirelli@gmail.com</a>></span><br>
<blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"><div><br></div> Wolfgang,<div><br></div><div> I think Davide's implementation supports extending existing java classes... did you tried? What is not possible is to implement interfaces, since you can't define methods in the declare statement.</div>
<div><br></div><div> Edson<div><div></div><div class="h5"><br><br><div class="gmail_quote">2011/5/28 Wolfgang Laun <span dir="ltr"><<a href="mailto:wolfgang.laun@gmail.com" target="_blank">wolfgang.laun@gmail.com</a>></span><br>
<blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
There is, since 5.2.0, the option of extending a class declared in DRL:<br><br>declare A<br> i : int <br>end<br><br>declare B extends A<br> ...<br>end<br><br>Any class origninating from Java code cannot be extended in DRL.<br>
<font color="#888888">
<br>-W</font><div><div></div><div><br><br><br><div class="gmail_quote">On 28 May 2011 10:56, Tomas Olsson <span dir="ltr"><<a href="mailto:tol@sics.se" target="_blank">tol@sics.se</a>></span> wrote:<br><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
Hi,<br>
I have tried to look this up but cannot find any clear answer on the web.<br>
Does drools support extension of existing classes for new type declarations?<br>
That would be very nice if this would be possible.<br>
<br>
/Tomas<br>
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<br></blockquote></div><br><br clear="all"><br></div></div>-- <br> Edson Tirelli<br> JBoss Drools Core Development<br> JBoss by Red Hat @ <a href="http://www.jboss.com" target="_blank">www.jboss.com</a><br>
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