Below is another couple of test cases, showing that the problem is not due
a getter that isn't called get* - it's a more general problem. As far as I
can tell this rule pattern, expecting to fire in ascending order of
Fact.prop, is broken in 5.5.0:
rule "Rule xx"
when
$fact: Fact( $prop: prop )
not Fact(prop < $prop)
then
System.out.println("Fact.prop: " + $prop);
retract($fact);
end
// Test case using String
rule init
salience 9999
when
then
insert( "AAA" );
insert( "DDD" );
insert( "EEE" );
insert( "CCC" );
insert( "BBB" );
end
rule "Rule 05"
when
$s : String()
not String( this < $s)
then
System.out.println("String found with value: " + $s );
retract($s);
end
// Test case using declared type
declare Fact
prop : long
end
rule init
salience 999
when
then
insert( new Fact( 1 ) );
insert( new Fact( 5 ) );
insert( new Fact( 6 ) );
insert( new Fact( 4 ) );
insert( new Fact( 2 ) );
end
rule "Rule 06"
salience 100
when
$fact : Fact( $prop: prop )
not Fact( prop < $prop )
then
System.out.println("Fact.prop: " + $prop);
retract($fact);
end
On 20/01/2013, Wolfgang Laun <wolfgang.l...@gmail.com> wrote:
> [Sorry - the previous email "escaped" before I was complete.]
>
> This is a self-contained DRL demonstrating the erroneous handling of
> a condition involving Integer.intValue (same: Number.intValue), not
> and retract, which is meant to sort the integers. This fails with 5.5.0,
> but works correctly with 5.4.0 and previous versions.
>
> rule init
> salience 9999
> when
> then
> insert( Integer.valueOf( 10 ) );
> insert( Integer.valueOf( 50 ) );
> insert( Integer.valueOf( 60 ) );
> insert( Integer.valueOf( 40 ) );
> insert( Integer.valueOf( 20 ) );
> end
>
> rule "Rule 04"
> when
> $number : Integer( $i: intValue )
> not Integer(intValue < $i)
> then
> System.out.println("Number found with value: " + $number.intValue());
> retract($number);
> end
>
>>
>> On 17/01/2013, Wolfgang Laun <wolfgang.l...@gmail.com> wrote:
>>> This BAD bug was introduced on the way from 5.4.0 to 5.5.0 (and seems
>>> to have sneaked into 6.0.0 as well).
>>>
>>> Only 5.4.0 and predecessors work as expected.
>>>
>>> Damage control? How far can 5.5.0 be trusted?
>>>
>>>
>>> On 17/01/2013, John Smith <ffirstt.lla...@gmail.com> wrote:
>>>> I am new to Drools and am trying to get the sample program to work.
>>>> This
>>>> sample is given in the drools documentation
>>>> http://docs.jboss.org/drools/release/5.5.0.Final/drools-expert-docs/html_single/index.html#d0e9542.
>>>> This drool rule is expected to sort integers. I just changed the
>>>> numbers
>>>> from what are given in the sample and they do not get sorted as
>>>> expected.
>>>> Tried using drools version 5.5.0, 5.5.1 and the master 6.0.0, but got
>>>> the
>>>> same wrong results.
>>>>
>>>> Following is the main code:
>>>> package com.sample;
>>>>
>>>> public class Example2 {
>>>> public static void main(String[] args) throws Exception {
>>>> Number[] numbers = new Number[] { wrap(5), wrap(6), wrap(4),
>>>> wrap(1), wrap(2) };
>>>> new RuleRunner().runRules(new String[] { "Example3.drl" },
>>>> numbers);
>>>> }
>>>>
>>>> private static Integer wrap(int i) {
>>>> return new Integer(i);
>>>> }
>>>> }
>>>>
>>>> The RuleRunner class is the same as given in the example and I do not
>>>> think
>>>> I should give that here, since it will clutter the question. It simply
>>>> creates the KnowledgeBase, stateful session, inserts the facts as given
>>>> in
>>>> the 'numbers' array above and then calls fireAllRules method on the
>>>> session.
>>>>
>>>> The rule file (Example3.drl) is:
>>>>
>>>>
>>>> rule "Rule 04"
>>>> dialect "mvel"
>>>> when
>>>> $number : Number()
>>>> not Number(intValue < $number.intValue)
>>>> then
>>>> System.out.println("Number found with value: " +
>>>> $number.intValue());
>>>> retract($number);
>>>> end
>>>>
>>>>
>>>> The output I get is as follows:
>>>> Loading file: Example3.drl
>>>> Inserting fact: 5
>>>> Inserting fact: 6
>>>> Inserting fact: 4
>>>> Inserting fact: 1
>>>> Inserting fact: 2
>>>> Number found with value: 1
>>>> Number found with value: 4
>>>> Number found with value: 2
>>>> Number found with value: 5
>>>> Number found with value: 6
>>>>
>>>> Not the correct expected ascending sorted order.
>>>>
>>>> What might I be doing wrong? I cannot imagine that the drools rule
>>>> engine
>>>> would be broken at this basic level.
>>>>
>>>>
>>>>
>>>> --
>>>> View this message in context:
>>>> http://drools.46999.n3.nabble.com/Drools-Expert-does-not-sort-integers-correctly-tp4021606.html
>>>> Sent from the Drools: User forum mailing list archive at Nabble.com.
>>>> _______________________________________________
>>>> rules-users mailing list
>>>> rules-us...@lists.jboss.org
>>>> https://lists.jboss.org/mailman/listinfo/rules-users
>>>>
>>>
>>
>
_______________________________________________
rules-dev mailing list
rules-dev@lists.jboss.org
https://lists.jboss.org/mailman/listinfo/rules-dev
