Re: [rules-users] Writing complicated rules - consecutive number problem
You need an attribute that orders Person facts. For simplicity's sake,
let's call this pnr, a unique number. Then, for any two Person facts where
one pnr is less than another pnr the age of the first must be less than the
age of the second.
It's easy to show that for any two strictly monotonical increasing
sequences <a> and <b> and any pair of index values (i,j) where a[i] < a[j]
also b[i] < b[j] holds.
-W
On 5 November 2011 16:16, LCode <j_whittlesea(a)hotmail.com> wrote:
I am trying to write a rather complicated rule via the guided rule
editor
and
I wonder if it is indeed possible.
The following is a simplified explanation of my scenario:
A 'person' has a numerical property 'age'
In a hypothetical world the following is allowed because the ages of the
people are consecutive:
Person A age = 24
Person B age = 25
Person C age = 26 OK
Person D age = 27
However I would like to write a rule that fires if the ages are not
consecutive, something like this:
Person A age = 24
Person B age = 25
Person C age = 29 NOT OK
Person D age = 27
I am starting with 'From collect all people [p]'.
Any thoughts, comments or similar experiences much apprieciated as I am
pulling my hair out!
Jen
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