Hi, jess-users:
I am having a problem with applet and security. What I want to do is to
create an object inside an applet and I can later on use the object as a
fact or template to fire some rules. However, I can not do it. I got
stuck with "defclass" (see the following code). What did I do wrong? I
need some help here. Any comments are appreciated.
By the way, I already added all the userpackages for the rete engine to
avoid any "function not implemented" error .
...
rete.executeCommand("(store Mytank (new jess.examples.pumps.Tank
\"MMM\"))");
rete.executeCommand("(printout t (fetch Mytank) crlf crlf)");
rete.executeCommand("(defclass mytank
jess.examples.pumps.Tank)");
rete.executeCommand("(definstance mytank (fetch Mytank))");
...
The following is the error message in Netscape 4.51 java
console:
Tank MMM level now 495
<External-Address:jess.examples.pumps.Tank>
netscape.security.AppletSecurityException: security.member access at
netscape.security.AppletSecurity.checkMemberAccess(AppletSecurity.java:1155)
at
netscape.security.AppletSecurity.checkMemberAccess(AppletSecurity.java:1143)
at java.lang.Class.checkMemberAccess(Class.java:698)
at java.lang.Class.getDeclaredMethods(Class.java:555)
at java.beans.Introspector.getTargetEventInfo(Introspector.java:444)
at java.beans.Introspector.getBeanInfo(Introspector.java:200)
at java.beans.Introspector.getBeanInfo(Introspector.java:83)
at java.beans.Introspector.<init>(Introspector.java:178)
at java.beans.Introspector.getBeanInfo(Introspector.java:83)
at jess.reflect.Defclass.call(ReflectFunctions.java:869)
at jess.Funcall.simpleExecute(Funcall.java:336)
at jess.Funcall.execute(Funcall.java:297)
at jess.Funcall.execute(Funcall.java:196)
at jess.Jesp.parseAndExecuteFuncall(Jesp.java:1386)
at jess.Jesp.parseSexp(Jesp.java:161)
at jess.Jesp.parse(Jesp.java:61)
at jess.Rete.executeCommand(Rete.java:1091)
....
Thanks.
Fang Liu
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