Re: JESS: Using logical 'or' pipes (|) with global variables

[yuping he]

Hi, I have several questions.

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1.

the number of parenthesis of command exit doesn't matter

    (exit) ((exit)) (((exit))), etc... all works.

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2.

(ppdeffunctin) is not working

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3.

(deftemplate factorial
(declare (ordered TRUE)
(backchain-reactive TRUE)))
(backchain-reactive is not working)

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4.

import java.io.Serializable;
import java.beans.*;

public class AutoBean implements Serializable
{
 private PropertyChangeSupport pcs = new PropertyChangeSupport(this);
 private String name = "Bob";

 public String getName()
 {
  return name;
 }

 public void setName(String name)
 {
  String oldValue = this.name;
  this.name = name;
  pcs.firePropertyChange("name", oldValue, this.name);
 }

 public void addPropertyChangeListener(PropertyChangeListener pcl)
 {
  pcs.addPropertyChangeListener(pcl);
 }

 public void removePropertyChangeListener(PropertyChangeListener pcl)
 {
  pcs.removePropertyChangeListener(pcl);
 }
}

(clear)
(defclass bean AutoBean)
(bind ?bean (new AutoBean))
(definstance bean ?bean dynamic)
f-0   (MAIN::bean (class <Java-Object:java.lang.Class>) (name "Bob") (OBJECT <Java-Object:AutoBean>))

However, during my second test (only tested under 70b6)
I did not (exit) jess. I just changed property name from "name" to "names" and recompile the AutoBean.class and then enter
(clear)
(defclass bean AutoBean)
(bind ?bean (new AutoBean))
(definstance bean ?bean dynamic)
(facts *)
f-0   (MAIN::bean (class <Java-Object:java.lang.Class>) (name "Bob") (OBJECT <Java-Object:AutoBean>))
Jess is not awaring of this change.  I have to exit jess and re-enter jess to make it work.

********************************************************************************************************************

5.

(defrule testing
=>
 (if (=1 0) then then else (printout t "comment test passed" crlf))
)

Jess> (run)
comment test passed
1
I realize that jess engine just echoes the second then so no exception is thrown. but still seems strange to me.

 

Thanks.

Yuping