[rules-users] Define global variables at the top of a rules file

[Wolfgang Laun]

There is no way the truth of true can be changed and, by definition, when
there is no change in the condition there is no chance for another firing of
the rule. All Production Systems are alike in this respect.
-W

2011/10/22 Martin A <wmlsub at gmail.com>

> Hello,
>
> Thanks for your response!
>
> But I don't understand why such a rule with a high salience which looks
> like:
>
> global int VARIABLE;
>
> rule "init"
>   salience 999;
>   when
>     (eval(true))
>   then
>     VARIABLE = 1;
> end
>
> would fire only once?
>
> Thank you,
> Martin
>
>
> 2011/10/20 Wolfgang Laun <wolfgang.laun at gmail.com>
>
>> You can do this by setting the global from a high salience rule from
>> within your DRL. Leave the conition empty - such a rule only fires once.
>> -W
>>
>> 2011/10/20 Martin A <wmlsub at gmail.com>
>>
>>> Hello,
>>>
>>> I'd like to set global rules variables at the top of a rules file, like
>>> so:
>>>
>>> global int WELCOME_SCREEN = 1;
>>>
>>> so that I may easily refer to them from inside the rules, instead of
>>> hardcoding them somewhere in code. Is this possible?
>>>
>>> Best regards,
>>> Martin
>>>
>>> _______________________________________________
>>> rules-users mailing list
>>> rules-users at lists.jboss.org
>>> https://lists.jboss.org/mailman/listinfo/rules-users
>>>
>>>
>>
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>>
>>
>
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