Sudhir,
Thanks for the information ...
To give more data..
I am using drools 4.0.7 version.
I have appropriate setters and getters in all my classes A, B, Z.
My drools file look like this:
rule "test"
salience 20
no-loop true
when
$a:A( b : B);
eval (b.X == "testValue");
then
$a.setSomething();
update($a);
end
When I run this rule, it says
Unable to create Field Extractor for 'B' : [Rule name=test,
agendaGroup=MAIN, salience=20, no-loop=true]
org.drools.RuntimeDroolsException: org.drools.RuntimeDroolsException:
Field/method 'B' not found for class 'com.test.java.A'
Rule Compilation error : [Rule name=test, agendaGroup=MAIN, salience=20,
no-loop=true]
Rule_test_0.java (8:323) : b.X cannot be resolved to a type
E
I have double checked if there was any typos in defining my fields, and
there exists no problem due to typos.
Could you please throw light on this exception ?
Thanks
-D
D1vy@@Ind1@ wrote:
Hi,
I am planning to use Drools - JBoss Rules Engine. My requirement is to
disburse mails from my application to different groups based on various
criteria. I want to use Drools here.
My object structure is as follows:
class A{
String B = "";
B b;
C c;
}
Hence Obj A has embedded objects within it, and obj B and C further has
embedded objects.
class B {
String X;
Z z;
}
class Z{
String t;
String s;
}
The decision on sending the mails based on the fields in embedded objects
of
A. I pass instance of A to Drools
Format of drl file:
package...;
import ..;
rule "Test"
when $a:A(B(Z(s == "testvalue")))
then
$a.setSomething();
update($a);
end
I wanted to know if this (accessing fields in embedded/child object) is
feasible with Drools.
I get an error saying "UNable to compile myfile.drl when i try to fo this.
Could some one look into this issue and let me know the reason for this ?
Thanks
-D
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