[rules-users] Rule, import with wildcards and variable / patternBinding
Hello,
Yesterday I wanted to upgrade my drools version to 5.3 (from 5.1). I got
the exception "java.lang.NoClassDefFoundError:
de/pelle7/testpackage/event/myEvent (wrong name:
de/pelle7/testpackage/event/MyEvent)" while adding my resources.
I removed the import wildcards and the error disappeard.
Finally I found the problem:
I used the patternBinding 'myEvent' and there is a class called
'MyEvent' and I used an wildcard import where the class 'MyEvent' is
located.
Example code:
"
package de.pelle7.testrules.impl.drools
import de.pelle7.testpackage.event.*
rule "Test rule 1"
dialect "java"
salience 50
when
myEvent : MyEvent( )
myEvent2 : MyEvent( data == myEvent.data ) <-- here the Exception
is thrown
then
System.err.println("Output");
end
"
My solution is that I replaced all my pattern bindings with the suffix
'$' which is more convenient.
Perhaps it would be nice to produce an rule-compilation error. with a
line notice.
Regard,
Per Sterner