As far as I know, these 2 functions already exist in 5.1.1. Don&#39;t they?<br clear="all"><br>Best Regards,<br><br>XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX<br><br>Esteban Aliverti<br>- Developer @ <a href="http://www.plugtree.com" target="_blank">http://www.plugtree.com </a><br>

- Blog @ <a href="http://ilesteban.wordpress.com" target="_blank">http://ilesteban.wordpress.com</a><br>
<br><br><div class="gmail_quote">2011/11/16 Bruno Freudensprung <span dir="ltr">&lt;<a href="mailto:bruno.freudensprung@temis.com">bruno.freudensprung@temis.com</a>&gt;</span><br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">

<u></u>

  
    
  
  <div text="#000000" bgcolor="#ffffff">
    Hi Wolfgang, hi Estaban,<br>
    <br>
    Many thanks for your insights!<br>
    I&#39;ll stick to a custom accumulate function since it is more consice
    than the init/action/result approach.<br>
    And since I am using Drools 5.1.1, I&#39;ll create functions named
    collectList and collectSet to be &quot;future proof&quot; :-)<br>
    <br>
    Best regards,<br>
    <br>
    Bruno.<br>
    <br>
    Le 16/11/2011 10:34, Esteban Aliverti a écrit :
    <div class="im"><blockquote type="cite">You already have 2 accumulate functions to do what you
      need:
      <div>
        <ul>
          <li>collectList</li>
          <li>collectSet</li>
        </ul>
        <div>So, your rule will look like this:</div>
        <div>   $countries : HashSet(empty == false) from accumulate
          (City($name matches &quot;X.*&quot;, $country : country),
          collectSet($country))</div>
        <div><br>
        </div>
        <div><br>
        </div>
        <div>Best Regards,</div>
        <br>
        XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX<br>
        <br>
        Esteban Aliverti<br>
        - Developer @ <a href="http://www.plugtree.com" target="_blank">http://www.plugtree.com
        </a><br>
        - Blog @ <a href="http://ilesteban.wordpress.com" target="_blank">http://ilesteban.wordpress.com</a><br>
        <br>
      </div>
    </blockquote>
    <br>
  </div></div>

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