[rules-users] duration attribute & other rule language features issue

[Wolfgang Laun]

Rule timers using int: or cron: work pretty much as described in the Expert
documentation.

With 5.1.1, there was an issue with timer(int:...) due to a parser bug, see
JBRULES-2778 <https://issues.jboss.org/browse/JBRULES-2778>

Also, @expires with declare is working. Notice, though, that it is not
alway immediately apparent why a fact is not retracted after the indicated
time. Please provide a full working example where you find that it does not
work.

-W


2011/11/25 Prashant Badhe <prashant.badhe at gmail.com>

> Hi,
>
> we were using drools engine 5.0.1 version with rules having 'duration',
> 'agenda-group' attributes and now we want to upgrade drools engine to 5.1.1
> or latest 5.3.0 but we find 'duration' feature not working. What are the
> equivalents of those features in 5.1.1 and in 5.3.0?
>
>
> From drools-expert document, 'duration' seems as deprecated with 'timer'.
> But even 'timer' is not working. Putting 'timer' attribute as:
>
>
> rule "test timer attribute"
>     agenda-group "enrichment"
>     auto-focus true
>     no-loop
>     salience 140
>     timer ( int: 5s )
>     //duration ( 5000 )
>     when
>           ......
>    then
>          ......
>    end
>
> gives "Error: java.lang.ArrayStoreException" Drools compilation error.
> "timer ( 5s )" compiles, but the rule never fires.
>
> We are also planning to use @expires in declare. But facts are not seems
> to be expiring.
>
> What am I missing here? What are the equivalent for 'duration' in
> 5.1.1/5.3.0 and how to use @expires in declare?
> Please point us to some sample rules that uses these semantics and are
> working.
>
> Thanks in advance,
> Prashant B.
>
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