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We are thinking of extending the java dialect with a modify command
that works like the mvel one; this would negate the need to use a
separate modify statement. Just a matter of getting time to do it :(<br>
<br>
Mark<br>
ekke wrote:
<blockquote cite="mid:13954697.post@talk.nabble.com" type="cite">
<pre wrap="">mehdi,
the rules engine has to know that your fact changed,
you can use PropertyChangeSupport
take a look at the documentation
2.5.4.4. Update
2.5.4.7. Property Change Listener
6.5.3. The Right Hand Side (then)
regards
ekke
Mehdi-6 wrote:
</pre>
<blockquote type="cite">
<pre wrap="">hi,
I have a class Customer.java with class variable "allTradeAmounts" and
I have two rules as follows:
rule "rule 1"
when
$c : Customer();
then
$c.setAllTradeAmounts($c.getAllTradeAmounts().add(1000));
System.out.println("after modify: "+$c.getAllTradeAmounts());
end
rule "rule 2"
when
$c : Customer(allTradeAmounts < 200 );
then
System.out.println("AllTradeAmounts < 200 ");
end
The rule 1 works fine and changes the value of this variable.
My question is, although the rule 1 has changed the class variable and I
can see the result of changed variable EACH TIME, when i insert a Customer
object, why is the second rule TRUE? I have changed the value of
AllTradeAmounts and I can print it in RHS and it is more than 200, but in
LHS if I check with "allTradeAmounts < 200 " ,it is true.
It must be FALSE and does not fire the rule.
can someone help me? what do I do wrong in LHS.
In the same rule (rule 2) if I print the allTradeAmounts it is more than
200.
sorry it is a simple question, but I m new to drools.
Thanks and regards
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</pre>
</blockquote>
<pre wrap=""><!---->
</pre>
</blockquote>
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