Hi,
Not a stupid question at all. store() and fetch() are not magic at
all; they're just trivial functions and Userfunctions wrapping a
java.util.Hashtable. When you call store() you put something into the
Hashtable, and when you call fetch, you get it out. You could write
your own version which just appended everything to a single Vector,
then use it instead of what you've got below; i.e., something like
public class StoreVector implements Userfunction {
private static Vector m_vector = new Vector();
public static Vector getVector() { return m_vector; }
public static void clear() { m_vector.setLength(0); }
public String name() { return "store-vec"; }
public Value call(ValueVector vv, Context c)
throws JessException {
m_vector.addElement(vv.get(1).resolveValue(c));
return Funcall.TRUE;
}
}
Then in your Jess code you'd call (store-vec ?v1) to add a result, and
in Java you'd do something like
StoreVector.clear();
engine.run();
Vector results = StoreVector.getVector();
If you wanted the entries keyed by some rule identifier, then
you could write a version which took two arguments, and pass in the
rule name from Jess when you call store-vec.
I think Manish Sannat wrote:
[Charset iso-8859-1 unsupported, filtering to ASCII...]
> I am loading Rules and Facts dynamically and I want to get result(Action) of fired
>rules in the form
> of Vector of result strings.
> I know that you can store the result string as
> (defrule rule1
> (head1 ?var1)
> (head2 ?var2)
> =>
> (assert (head3 ?v1 ?v2))
> (store v1 ?var1)
> (store v2 ?var2) )
> ....................
> and get it in java as
> after loading rules and facts and rete.run();
> Value v1Value = new Value(String s1, RU.STRING);
> v1Value = rete.fetch("v1");
> ValueVector vv = new ValueVector();
> vv.add(v1Value);
>
> Is there in other way or design pattern through which result of fired rules can be
>sored in the form
> of Vector(or ValueVector) without knowing the stored Value variable (in the RHS of
>rules ;in the example above "v1").
> I may sound fool but I mean after (run) ;it should store all the fired rules RHS to
>a list(or Vector).
> Like : public ValueVector run() throws JessException;
> where ValueVector has structure of Elements ((ruleNo. or any other identifier for
>key), String[]).
> Sorry, if I have asked stupid Que.
> Manish
>
>
>
>
>
> MASTEK
> Investing in relationships
> In the US, we're called MAJESCO
>
>
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