[rules-users] Cannot invoke method because of ArrayIndexOutOfBoundsException
Hello Guys,
sorry to bother you with this problem, but I'm out of ideas.
I'm using Drools in textmining-context and in basic I have
a function that checks 2 named entites for equality to
ensure that the entities are all different and that the rules
do work only on different named entity objects:
public static boolean isEqual(Annotation a, Annotation b){
if(a.equals(b)){
return true;
}
return false;
}
Sometimes there are conditions that need tests of more than
2 named entites. For this I've written a super method that
calls the isEqual method in a loop:
public static boolean isEqual(Annotation... a){
ArrayList<Annotation> outLoop = new ArrayList<Annotation>(Arrays.asList(a));
ArrayList<Annotation> inLoop = new ArrayList<Annotation>(Arrays.asList(a));
for (Annotation anno1 : outLoop) {
inLoop.remove(anno1);
for (Annotation anno2 : inLoop) {
if(isEqual(anno1,anno2)){
return true;
}
}
}
return false;
}
My rules could (theoretically) now call the function
eval(isEqual($ne1,$ne2)) or
eval(isEqual($ne1,$ne2,$ne3) or even
eval(isEqual($ne1,$ne2,$ne3,$ne4,$ne5)) and so on.
So there starts my problem:
Each time I'm getting an ArrayIndexOutOfBounds Exception from the second
method that looks like this:
java.lang.RuntimeException: cannot invoke method: isEqual
...
at java.lang.Thread.dispatchUncaughtException(Thread.java:1888)
Caused by: java.lang.ArrayIndexOutOfBoundsException: 3
at
org.mvel2.optimizers.impl.refl.nodes.MethodAccessor.executeAll(MethodAccessor.java:149)
at org.mvel2.optimizers.impl.refl.nodes.MethodAccessor.getValue(MethodAccessor.java:48)
at org.mvel2.ast.ASTNode.getReducedValueAccelerated(ASTNode.java:108)
at org.mvel2.compiler.ExecutableAccessor.getValue(ExecutableAccessor.java:38)
...
Could someone explain me what's wrong with my code? Thanks for any help.
Greetings
JB