Map using from constraint

Hi all,

Is there a way using the ‘from’ constraint to get the values of a map(the implementations of java.lang.Map eg HashMap, TreeMap, etc) into a constraint parameter, and if so can someone please give an example. Below is the way I’ve been trying, without success, to get a value based on a key.

import my.package.MyFact

import java.util.Map.Entry

rule “Find with map”

                when

                                $fact : MyFact($paramMap : paramMap)

                                $myValue : Entry(key == “mykey1”) from $paramMap

                Then

// Sudo code…

                                <use $myValue.getValue()>

end

Paul Ryan

Software Architect
Product Engineering
InfoTrust Group, Inc.

500 Discovery Parkway, Suite 200
Superior, CO 80027
Office (303) 627-6528

Fax (303) 666-6711
Email pryan@...
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