On Jan 28, 2008, at 5:10 AM, Florian Fischer wrote:
Hello,
I have an issue with JESS where I wonder which is the best solution.
- Is there a way to send a propertyChangeEvent with a list of
changed fields?
Not exactly, but the JavaBeans spec allows, and Jess supports, null
property names. If the property name (and the values) are null, then
Jess looks at all the properties to see which ones have changed and
modifies just those.
- Is there a way to reload a shadow fact and ask JESS to sort out
which field has actually changed?
or more generally:
In recent versions of Jess there's the Rete.updateObject() method,
which asks Jess to examine the object and make sure working memory is
in sync. It can be used as an alternative to PropertyChangeEvents
when you have sufficient control over external object modification.
---------------------------------------------------------
Ernest Friedman-Hill
Informatics & Decision Sciences Phone: (925) 294-2154
Sandia National Labs FAX: (925) 294-2234
PO Box 969, MS 9012 [EMAIL PROTECTED]
Livermore, CA 94550 http://www.jessrules.com
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