you have two patterns, there for you need two objects - it's a cross product. Try using an eval instead of a predicate, then you can bind all your variables on the first line, and eval them on the next line.

Until you move to 4.0 there is no clean way to do this.

Mark
Natraj Gudla wrote:

Yes, infact i expected both the conditions to work against the same object in the working memory? Is it not possible?

For this scenario, drools has not been allowing me to do a comparison amongst two attributes of the same class. When i do so, it complains of not being to resolve the variable.

Some thing like a1 > a2 does not work. I am forced to create a declaration and then use it to compare. If i do so, the run time thing fails.

How do i get around to compare two attributes from the same class. Something like

a1 > a2 or say a1 > (a2 * 1.5)

Thanks

Natraj
On 7/19/07, Mark Proctor <mproctor@codehaus.org> wrote:
You do understand that what you have there is a cross product, you'll need two objects to match against that - were you expecting this to wokr against and on the same single EMIAgainstProperty object?

Mark
Natraj Gudla wrote:
I am facing some serious blocking issues while writing few rules. In the rule below, a1, a2 are Double objects. When i have the first statement in the rule " EMIAgainstProperty( obj : a1 )", the rule does not fire....when i comment and re phrase the second line as emi : EMIAgainstProperty( a2 >= ( new Double(10* 1.5 )) ), the rule is fired.

Why is the first line making the rule not to fire. I have reported a similar problem yesterday, but could not find a resolution. On the other hand, i am unable to refer a1 directly to say a1.doubleValue () in the second line, it throws up and error. Any help??? What is the way out?

rule
"Test" when
EMIAgainstProperty( obj : a1 )

emi : EMIAgainstProperty( a2 >= (
new Double(obj.doubleValue() * 1.5 )) ) then
System.out.println(
" Passed ");
end
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