Dirk,
Looking at your questions, it feels like you are stretching the
meaning of declarative programming, if you know what I mean. :)
Maybe if you can show us the real use case (or something close), we
can help you figure out a way to do it...
[]s
Edson
Dirk Bergstrom wrote:
Dirk Bergstrom was heard to exclaim, On 11/27/06 23:03:
Dirk Bergstrom was heard to exclaim, On 11/27/06 22:16:
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
I was wrong. The above doesn't work. So now I'm stuck. Can anyone think of
a way to do what I'm trying to do?
Sigh, I figured something out five minutes after I sent the message...
I created a class like this:
public class ConstantStash {
private Map<Object, Integer> things = new HashMap<Object, Integer>();
public Integer set(Object key, int value) {
things.put(key, value);
return value;
}
public Integer get(Object key) {
return things.get(key);
}
}
And used it like this:
global ConstantStash stash;
rule "foo"
when
SomeObject( aField > (stash.set("a rule", 7)) )
then
takeSomeAction(stash.get("a rule"))
end
It's still clunky, but at least it looks like it will work.
--
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Edson Tirelli
Software Engineer - JBoss Rules Core Developer
Office: +55 11 3124-6000
Mobile: +55 11 9218-4151
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