Hi Derek,
I'm trying to figure out where the problem might lie. Is the problem
that "eq" an overloaded method, and Jess is calling the wrong
overload? Jess can correctly call a method that takes a char as an
argument, and in fact, it's smart enough to prefer the "char" overload
if the argument is a one-character string. Or is it something else?
I'm not sure what throws the ClassCastExcepton and why. Some code
would help me understand!
On Feb 16, 2011, at 3:14 PM, Derek Adams wrote:
Hello Jess-Users,
I have small jess/java issue that is causing quite a big problem.
(call (call ?hcu joinTo "projectStatus") eq "active" Y)
The jess code above is performing the following:
1. In the inner "call", it is calling the joinTo function on the
instance of the HibernateCritieriaUtil object, with a parameter of
"projectStatus".
2. That call returns another HibernateCritieriaUtil instance to be
used in the outer "call".
3. The outer "call" is calling the eq function with 2 parameters,
"active" and Y.
The problem is coming when the function interprets Y as a string.
"active" represents a column in the bean mapping and has a type of
char.
So when it compares "active" with a string Y, it throws a
ClassCastException: type String cannot be cast to type char
Suggestions?
--
Derek Adams
Lead Developer
Arahant LLC
Work: 615-376-5500 ext. 314
Cell: 270-543-0920
---------------------------------------------------------
Ernest Friedman-Hill
Informatics & Decision Sciences Phone: (925) 294-2154
Sandia National Labs
PO Box 969, MS 9012 ejfr...@sandia.gov
Livermore, CA 94550 http://www.jessrules.com
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