Hi All,
I am using definstance to assert facts to Rete
object. For a bean "objectA2" having properties
"heigt","name" and "pulse" the templates and facts
were created as under:
The template created was:
(deftemplate objectA2 extends __fact "$JAVA-OBJECT$
objectA2"
(slot class (default
<External-Address:jess.SerializablePropertyDescriptor>))
(slot height (default
<External-Address:jess.SerializablePropertyDescriptor>))
(slot name (default
<External-Address:jess.SerializablePropertyDescriptor>))
(slot pulse (default
<External-Address:jess.SerializablePropertyDescriptor>))
(slot OBJECT (type 2048)))
The fact listed by the Rete object was:
f-0 (objectA2 (class
<External-Address:java.lang.Class>) (height 120.0)
(name "zz") (pulse 23) (OBJECT <External-Address:
objectA2>))
I created the following rule with a pattern exactly
matching the above fact.
( defrule trial1
(objectA2 (class ?cal) (height ?ht) (name ?nam) (pulse
?pul) (OBJECT ?ob2 ) )
=>
(printout t " Value of Heitght" ?ht crlf )
(printout t " Value of Name " ?nam crlf )
(printout t " Value of Pulse " ?pul crlf )
)
While I run the Rete engine with the above rule, I met
with the an error of Bad slot value:
Jess reported an error in routine Jesp.parsePattern.
Message: Bad slot value .
Program text: ( defrule trial1 ( objectA2 ( at line
2.
at jess.Jesp.parseError(Jesp.java:1556)
at jess.Jesp.parsePattern(Jesp.java, Compiled Code)
at jess.Jesp.parseLHS(Jesp.java, Compiled Code)
at jess.Jesp.doParseDefrule(Jesp.java, Compiled Code)
at jess.Jesp.parseDefrule(Jesp.java:848)
at jess.Jesp.parseSexp(Jesp.java:158)
at jess.Jesp.parse(Jesp.java, Compiled Code)
I seek your help on this
Thanks and regards.
Chinnaswamy
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