(1) Theres nothing stopping you using a singleton to hold "state", so this provides what you want:-

 

rule "1"

when

$o : AnObject( someField == someCriteria )

then

boolean someFlag = true;

insert(new State( someFlag ) );

end

 

rule "2"

when

State (someFlag == true )

$o : AnotherObject ( )

then

//something else

end

You could also have the first check activate another AgendaGroup, for example:-

 

rule "1"

when

$o : AnObject( someField == someCriteria )

then

drools.setFocus("SomeOtherGroup");

end

 

rule "2"

agenda-group SomeOtherGroup

when

$o : AnotherObject ( )

then

(2) I believe the ObjectTypeNode filters based on "Class.isInstance()" and therefore you should be able to code rules based upon the sub-class and insert super-classes.

 

With kind regards,

 

Mike

 

 

On 06/10/2007, Sikkandar Nawabjan <Sikkandar.Nawabjan@ustri.com> wrote:

Hi,
I have couple of questions

1) I want to validate a Object and based upon certain condition set the flag and that flag available in my working memory context so that all the rules will execute based on the value of this flag. Is there any way to set the Global variable in working memory environment and use it in predicate logic.
I beleive passing Global variable using setGLobal() is possible but we can't use it in predicate logic.

2) my second quetion is i have 2 classes say

Public class B extends Class A{

private boolean  flag;


}


am validating my rule using of type B.
But i want to assert object of class A. in normal java we do downcasting  B b = (B)obj;
if i don't do that will downcast will happen at the working memory side automatically??????????


Basha



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