I have a bunch of rules that need to reference the same literal value twice,
once in the LHS, and once in the RHS. These rules will be written and
modified by end-users (using a DSL). I don't want them to have to write the
literals twice, because it's too easy to later change only one of the
occurrences, and end up with an inconsistent rule.
I want something like this:
rule "a rule"
when
localValue : 7
SomeObject( aField > localValue )
then
takeSomeAction(localValue)
end
Or this:
rule "a rule"
when
local lvalue = 7
SomeObject( aField > lvalue )
then
takeSomeAction(lvalue)
end
Is there some way to do this with existing Drools syntax (or version 3.1
syntax)?
The only think I can think of is this, which looks offensively clunky to me:
global HashMap stash;
rule "a rule"
when
stash.put("a rule", 7)
SomeObject( aField > (stash.get("a rule")) )
then
takeSomeAction(stash.get("a rule"))
end
--
Dirk Bergstrom [EMAIL PROTECTED]
_____________________________________________
Juniper Networks Inc., Computer Geek
Tel: 408.745.3182 Fax: 408.745.8905
---------------------------------------------------------------------
To unsubscribe from this list please visit:
http://xircles.codehaus.org/manage_email
