Re: [rules-users] Weblogic rules to Drools rules.
On Sat, Jan 30, 2010 at 6:56 PM, kashif10 <kash452(a)yahoo.com> wrote:
Thanks edson for you nice advise.
It really reduce the memory uage from 400 mb 70 mb..
compareDiagnosis( valueName[0] in ("Heart Failure") ||
(valueCode[0] in
("402.01","402.11","402.91","402.01","402.03","402.11","402.13","402.91","402.93",
"428.0 - 428.9") , valueCodeSystem[0] ==
"2.16.840.1.113883.6.2" ) )
Here I have some questions.
i) we have to iterate whole valueName not only [0]. How we can do it.
Check out
http://downloads.jboss.com/drools/docs/5.0.1.26597.FINAL/drools-expert/ht...
in 4.8.2.8. Conditional Element "from", which is one way of avoiding the
potentially evil next().
Also, consider creating fact objects, from your original data, which are
better suited for writing rules.
ii) we have not only simple valueCode matching, we can have
a) Range in code such as 428.0 - 428.9, so any thing in WM having
valueCode b/w this range should match.
b) but we can't use simply numbers , we have to use String as we can
have
code having alphabet such as "V32.4"
c) we can have wild card usage too. e.g code in Rule can be "V2*" which
can be match any thing at the place opf asterik in WM valuCodes.
Same chapter of the documentation, see the "matches" operator in section
4.8.2.1.1.3.1. Operators
-W
I see that Rule engine do introspection & call get methods of the fields
&
can do simple condition maching like ==, <, >etc. But mostly
we have some
complex logic in matching like I told you in pt ii) of valuecode matching.
I think only sol is to call methods which will comes inside eval() & If we
start usig it for long rules. rules will never load & stuck :(...
Need your expet advise for those long & complex rules.
Thanks
--
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