You need to use queries, which are documented in detail here:
http://www.jessrules.com/jess/docs/71/queries.html
It sounds to me, however, as if you're still trying to put the cart
before the horse. None of your questions have hinted at the existence
of any rules. If you're not writing rules, there's little reason for
you to be using Jess. If you *were* writing rules, then there would be
little reason to search for values from Java, but rather the rules
could send them to Java code as appropriate.
On Nov 26, 2010, at 2:22 AM, alvin0618 wrote:
How i do retrieve the facts' values from Jess to Java? I have read
some
example, they're just using printout t for displaying the message
from Jess
instead of showing assign into a variable. Could someone can show one
example as the condition at below.
JESS part:
(deftemplate person (slot firstName) (slot lastName) (slot age))
(assert (person (firstName Fred) (lastName Smith) (age 19)))
Java Part:
public class RuleEngine {
private Rete engine;
private String firstName;
private String lastName;
private Int age;
public RuleEngine() throws JessException
{
engine = new Rete();
engine.batch("my_engine.clp");
/* What should i do over here?????*/
}
}
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Ernest Friedman-Hill
Informatics & Decision Sciences Phone: (925) 294-2154
Sandia National Labs
PO Box 969, MS 9012 ejfr...@sandia.gov
Livermore, CA 94550 http://www.jessrules.com
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