Re: [drools-user] Drools Conditions

[Michael Neale]

you have it correct.

There is an implicit and, and thats all there is really in Drools 2.

In Drools 3, there are other node types, such as Or, Not, and so on, but not
in Drools 2.

Michael.

On 3/9/06, [EMAIL PROTECTED] <[EMAIL PROTECTED]> wrote:
>
> 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
>
>