CODEWITHSUNDEEP
droolsrule-engine
Nixx
Nixx

Reputation: 370

Drools 6 Rule Item Comparison

Lets say I have an object type MyObject with member data someValue and otherValue and I insert two logical rules as follows:

Rule "Checks Some Value"
  when
    $myO : MyObject( someValue == Constants.someValueChecker )
  then
    insertLogical(new SomeValueChecked($myO));
end

Rule "Checks Other Value"
  when
    $myO : MyObject( otherValue == Constants.otherValueChecker )
  then 
    insertLogical(new OtherValueChecked($myO));
end

My question is, is there a way to verify whether these rules have fired for the same instance of MyObject? Also, is there a way to, given a particular instance of MyObject, know if these rules have fired for it?

Upvotes: 0

Views: 704

Answers (1)

laune
laune

Reputation: 31290

To verify that both "some" and "other" value have been checked for the same object (and assuming that the reference to MyObject is kept in member myObject):

rule "some and other value"
when
    SomeValueChecked( $obj: myObject )
    OtherValueChecked( myObject == $obj )
then
  ...
end

And for checking whether both have fired for a particular instance of MyObject:

rule "some and other checked for green"
when
    $obj: MyObject( color == Colour.GREEN ) // or some other property
    SomeValueChecked( myObject == $obj )
    OtherValueChecked( myObject == $obj )
then
  ...
end

It should be obvious what is required to check for "some" or "other" alone.

Upvotes: 1

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