[rules-users] drools quirks

[Michael Anstis]

1) Have a look at the examples; they return OK. You don't say much about
your rules for any further help.

2) DSL would restrict what users could enter.

On 18 September 2010 15:15, Matt Young <solid at youngdev.net> wrote:

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> I just started using drools and this is my first time implementing a
> rules engine.  Everything has been pretty smooth but I have  some
> quirks that I am not sure I can live with.
> 1) for some reason, if I execute the Knowlege session against an
> object, the knowlege session never returns.  The only way I can get
> the ksession to return is to make IF (obj == null) part of the LHS and
> make modify($input){setObj("complete")} part of the RHS
> This seems like a deficiency since I have users writing their own
> rules, I can see them forgetting this requirement.  IS their a way to
> get the ksession to firerules only once?  If so what does that look like?
> 2) It seems that any code I want can be executed in the RHS.  I could
> literally execute something like the following in the RHS.
>
> byte[] b= new byte[10000000000000]; // Really big memory waste
>
> I also could just start a bunch of threads.
>
> The point is that I am intending to let the users write their own
> rules but I can't do that if there are no restrictions on how/what can
> be done inside the rules.  Any suggestions?  Are there sandboxes or
> filters I can activate to restrict the RHS?
>
> - --
> Cheers,
> Matt Young
> solid at youngdev.net
> http://youngdev.net
>
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