Jess 7.0 will have the accumulate feature, but how about some way of
accumulating by adding nodes to a tree? (If you look, you'll see that any
kind of general purpose tree class is conspicuously missing from java.util.)
For example, I'm doing some computations where I am accumulating sets of
nodes (fact-ids representing partial solutions to a scheduling problem)
after every engine cycle. Actually, the structure is a "forest" something
like this:
<node1-1> <node1-2>
| |
+---+--------+
+------------+------------+
| | | |
|
<node2-1> <node2-2> <node2-3> <node2-4>
<node2-5> ...
| | |
|
+----------+-+ +-----------+ +------------+
+------------+
| | | | | |
| |
<node3-1> <node3-2> <node3-3> <node3-4> <node3-5> <node3-6>
<node3-7> <node3-8>
... ...
In my case, the solutions that Jess will eventually find are the depth-first
traversals of the trees,
e.g, solution = {<node1-1>,<node2-1>,<node3-1>,...}
Given how ubiquitous trees are in computing, is there any utility in having
Jess support a ready-made structure for accumulating (placing!?) output
(pattern bindings, function returns, etc.) as nodes in a tree? Of course,
there are a thousand ways that I or any other user can roll our own (using
linked lists for example), but maybe someone else has a similar need, too.
Cheers,
Jason
------------------------
Jason Morris
Morris Technical Solutions
[EMAIL PROTECTED]
www.morristechnicalsolutions.com
fax/phone: 503.692.1088
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