1) Have a look at the examples; they return OK. You don't say much about your rules for any further help.<div><br></div><div>2) DSL would restrict what users could enter. <br><br><div class="gmail_quote">On 18 September 2010 15:15, Matt Young <span dir="ltr"><<a href="mailto:solid@youngdev.net">solid@youngdev.net</a>></span> wrote:<br>
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I just started using drools and this is my first time implementing a<br>
rules engine. Everything has been pretty smooth but I have some<br>
quirks that I am not sure I can live with.<br>
1) for some reason, if I execute the Knowlege session against an<br>
object, the knowlege session never returns. The only way I can get<br>
the ksession to return is to make IF (obj == null) part of the LHS and<br>
make modify($input){setObj("complete")} part of the RHS<br>
This seems like a deficiency since I have users writing their own<br>
rules, I can see them forgetting this requirement. IS their a way to<br>
get the ksession to firerules only once? If so what does that look like?<br>
2) It seems that any code I want can be executed in the RHS. I could<br>
literally execute something like the following in the RHS.<br>
<br>
byte[] b= new byte[10000000000000]; // Really big memory waste<br>
<br>
I also could just start a bunch of threads.<br>
<br>
The point is that I am intending to let the users write their own<br>
rules but I can't do that if there are no restrictions on how/what can<br>
be done inside the rules. Any suggestions? Are there sandboxes or<br>
filters I can activate to restrict the RHS?<br>
<br>
- --<br>
Cheers,<br>
Matt Young<br>
<a href="mailto:solid@youngdev.net">solid@youngdev.net</a><br>
<a href="http://youngdev.net" target="_blank">http://youngdev.net</a><br>
<br>
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</blockquote></div><br></div>