[rules-users] setting globals in rule file

[Wolfgang Laun]

You could let the "user" write some functions such as

function String parFoo(){ return "foo42"; }

and evaluate them in a rule firing with high priority on eval(true).

-W



2009/10/14 Chris Richmond <crichmond at referentia.com>

>  Hmm…
>
>
>
> Well..I have this rule file and it seems like a darn convenient place to
> set some configuration settings so the user could change them in the plain
> text file.  Otherwise I have to implement another configuration settgin
> system then feed that to th setGlobal…
>
>
>
> Chris
>
>
>  ------------------------------
>
> *From:* rules-users-bounces at lists.jboss.org [mailto:
> rules-users-bounces at lists.jboss.org] *On Behalf Of *Wolfgang Laun
> *Sent:* Wednesday, October 14, 2009 7:50 AM
> *To:* Rules Users List
> *Subject:* Re: [rules-users] setting globals in rule file
>
>
>
> No, globals can only be set by calling the WorkingMemory method
>    wm.setGlobal(String name, Object value)
>
> You could call this in a consequence (RHS), but it's usually not a good
> idea to do so.
>
> What do you want to achieve?
>
> -W
>
> 2009/10/14 Chris Richmond <crichmond at referentia.com>
>
> Shouldn’t it be possible to set a global variable value within the rule
> file itself at the top.  Something like?
>
>
>
>
>
> global String deviceName = “myDevice”;
>
>
>
>
>
>
>
> I thought you could do that, but  consistently get an error saying  illegal
> character ‘=’ expected “(“
>
>
>
> Or something along those lines.
>
>
>
> This is possible and that syntax should work, shouldn’t it?
>
>
>
> Thanks,
>
> Chris
>
>
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