[drools-user] Drools Conditions

[Russell.Ray]

Guys:

    I wanted to ask about the condition element within a rule.  Take for 
example the rule below.  There are four conditions.  This rule is not 
'asserted' unless all four conditions are true. This equates to an AND 
conditional set of statements.  Does drools support the OR behavior?  I guess 
it could if you wrote a separate rule reflecting the OR condition, but I would 
not like to design a solution this way as it could lead to conflicting 
behavior. 

      <rule name="Stock Price Low Enough">
         <!-- parameters to pass to business rule -->
         <parameter identifier="stockOffer">
           <class>StockOffer</class>
         </parameter>
         <!--  Conditions or 'left hand side' (LHS) that must be met for 
business rule to fire-->
         
<java:condition>daoFactory.getStockDAO().isOnStockList(stockOffer.getStockName())</java:condition>
         <java:condition>stockOffer.getRecommendPurchase() == null 
</java:condition>
            <!-- Must us the escape character for "<" as it indicates start of 
element -->
         <java:condition>stockOffer.getStockPrice() &lt; 100 </java:condition>
         <java:condition>stockOffer.getStockPrice() > 0 </java:condition>
         <java:consequence>
              stockOffer.setRecommendPurchase(StockOffer.YES);
              printStock(stockOffer); 
         </java:consequence> 
      </rule>
  
    Thank you for sharing your thoughts.

Russ