hi
I am trying to embed jess is java and having couple of issues.
I have got a rules file called rules.clp. The outline
of which is given below.
(bind ?p (new java.util.Vector))
(defrule Rule1
LHS
=>
(call ?p addElement "value1")
(defrule Rule2
LHS
=>
(call ?p addElement "value2")
I am using java to run this rule file. THe code I am using is given below.
public class Test
{
public static void main(String [] argv) throws JessException
{
//Create Engine, load the rules to the jess engine
Rete r = new Rete();
FileReader rulesFile;
Jesp jessParse;
try {
rulesFile = new FileReader("Rules.clp");
}
catch (FileNotFoundException fnfe) {
rulesFile = null;
System.out.println("Cannot open Rules.clp");
}
if (rulesFile != null) { //parse jess file
jessParse = new Jesp(rulesFile, r);
}
r.executeCommand("(run)");
Vector v = r.fetch("p");
}
}
What I want to happen is get the Vector object that is declared in jess
through java once the rules file is run.
I tried to get the vector by using the fetch method. The program compiles
alright. But I am getting an error while running the application. Would
appreciate any help.
Thanks
Sobha
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