10:58 a.m.
Try changing your BOM_TRANSACTION_DETAILS Display() method access to
public and see if it works.
Currently, you have it as "void Display()" in your
BOM_TRANSACTION_DETAILS method declaration. Change it to "public void
Display()". It might solve your problem.
No need to change method declaration in the interface as it's correct.
-Chris
On Dec 2, 2009, at 1:35 AM, Deepak Jambhekar wrote:
Hi....
I have created a rule which is as below
rule "myrule"
dialect "mvel"
when
tr : BOM_TRANSACTION_DETAILS( country == "CH" )
then
tr.setCarrierName( "orange" );
tr.Display();
end
And the Model class is defined as below...
interface Generalized
{
void Display();
}
public class BOM_TRANSACTION_DETAILS implements Generalized {
getter and setter.....
void Display()
{
.....
}
}
Now when I run this rule, it is giving me the following exception .
Can any one please help me why this exception is coming....? and
also when I removed the Display() from interface Generalized the
code works fine...
So is this because of Interface?? Can we use interface for defining
Models..??
org.drools.runtime.rule.ConsequenceException: [Error: tr.Display():
Class org.mvel2.optimizers.impl.refl.ReflectiveAccessorOptimizer can
not access a member of class com.drools.icas.transaction.Generalized
with modifiers "public abstract"]
[Near : {... Unknown ....}]
^
[Line: 1, Column: 0]
at
org
.drools
.runtime
.rule
.impl
.DefaultConsequenceExceptionHandler
.handleException(DefaultConsequenceExceptionHandler.java:23)
at
org.drools.common.DefaultAgenda.fireActivation(DefaultAgenda.java:943)
at org.drools.common.DefaultAgenda.fireNextItem(DefaultAgenda.java:
885)
at org.drools.common.DefaultAgenda.fireAllRules(DefaultAgenda.java:
1082)
at
org
.drools
.common
.AbstractWorkingMemory.fireAllRules(AbstractWorkingMemory.java:682)
at
org
.drools
.common
.AbstractWorkingMemory.fireAllRules(AbstractWorkingMemory.java:649)
at
org
.drools
.impl
.StatefulKnowledgeSessionImpl
.fireAllRules(StatefulKnowledgeSessionImpl.java:177)
at com.drools.icas.transaction.DemoTest.main(DemoTest.java:92)
Caused by: [Error: tr.Display(): Class
org.mvel2.optimizers.impl.refl.ReflectiveAccessorOptimizer can not
access a member of class com.drools.icas.transaction.Generalized
with modifiers "public abstract"]
[Near : {... Unknown ....}]
^
[Line: 1, Column: 0]
at
org
.mvel2
.optimizers
.impl
.refl
.ReflectiveAccessorOptimizer
.compileGetChain(ReflectiveAccessorOptimizer.java:382)
at
org
.mvel2
.optimizers
.impl
.refl
.ReflectiveAccessorOptimizer
.optimizeAccessor(ReflectiveAccessorOptimizer.java:140)
at org.mvel2.ast.ASTNode.getReducedValueAccelerated(ASTNode.java:137)
at org.mvel2.MVELRuntime.execute(MVELRuntime.java:91)
at
org
.mvel2.compiler.CompiledExpression.getValue(CompiledExpression.java:
101)
at org.mvel2.MVEL.executeExpression(MVEL.java:968)
at
org.drools.base.mvel.MVELConsequence.evaluate(MVELConsequence.java:89)
at
org.drools.common.DefaultAgenda.fireActivation(DefaultAgenda.java:934)
... 6 more
Caused by: java.lang.IllegalAccessException: Class
org.mvel2.optimizers.impl.refl.ReflectiveAccessorOptimizer can not
access a member of class com.drools.icas.transaction.Generalized
with modifiers "public abstract"
at sun.reflect.Reflection.ensureMemberAccess(Reflection.java:65)
at java.lang.reflect.Method.invoke(Method.java:583)
at
org
.mvel2
.optimizers
.impl
.refl
.ReflectiveAccessorOptimizer
.getMethod(ReflectiveAccessorOptimizer.java:936)
at
org
.mvel2
.optimizers
.impl
.refl
.ReflectiveAccessorOptimizer
.compileGetChain(ReflectiveAccessorOptimizer.java:321)
... 13 more
Thanks....
Deepak Jambhekar
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