Re: [rules-users] setting the @expires in java
Drools should have expr-based timers to help with this:
rule "Retract Dynamic"
timer( expr : $x ) // retract after $x
when
$f : Fact( $x : expireTime )
then
retract( $f );
end
The reason why you can't use variables in @expires
is that the engine runs an optimization algorithm at startup,
to optimize and pre-schedule expirations. It would be impossible
to run it if you had variable expiration.
Best
Davide
On 08/16/2013 08:30 AM, Wolfgang Laun wrote:
On 16/08/2013, samsonrithvik <samsonrithvik.cts(a)gmail.com>
wrote:
> ok
> so how do i set the expires value which changes dynamically according to my
> requirement ?
If you can't, then you don't.
What you'll have to do is to program the retraction according to the
dynamic value. Not trivial, because Drools timers don't have dynamic
timers.
-W
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