You deal with Java objects from Jess the same way you deal with them
from Java. There is no special syntax for dealing with collections --
you just call the Java methods. To call a method "y" on a Java object
in variable ?x with argument "z", you write
(?x y "z")
Here you want to call "get" on the ArrayList to get an element, and
"getValue" on the result; it looks like
(bind ?theObject (?arraylist get 1))
(?theObject getValue "value1")
of course you can eliminate the extra variable ?theObject and write
((?arraylist get 1) getValue "value1")
Now, I'm a tiny bit concerned that you didn't actually mean
"ArrayList" but rather "array" in your original post; which is it?
On Sep 26, 2007, at 3:15 PM, Andrew Meng wrote:
Hello,
I have a java arraylist collection declared in Jess. In a rule's
defination, I want to get some value from a object contained in
arraylist. like,
(> arraylist[1].getValue("value1") arraylist[0].getValue
("value2") )
Can anyone tell me what is the right way to do it in Jess?
Thanks a lot in advance!
Andrew
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Advanced Software Research 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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