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[aspectj-users] Aspect.aspectOf() behaviour
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Title: Message
(Sorry
Alex - this was sent to the wrong mailing list) - does the same still
apply?
We are
using the latest stable aspectJ build (20051015)
-Neil
All,
If I apply a
'perTarget' Aspect to a object and call
Aspects.aspectOf(SimpleAroundAspect.class, testClass) then I get an exception,
NoAspectBound...(see below)
However, if a prior
invocation has occured then Aspects.aspectOf(..) will return the Aspect that was
bound....
Ideally I would like
to get access to an aspect bound to the object instance regardless of whether or
not it has been invoked. Is it possible to determine/control the behaviour as
its the kind of thing that will affect component lifecycle when interacting with
aspects...?
Cheers
Neil.
TEST:
public void
testDifferendAspectInstanceGetsApplied() throws Exception
{
TestClass testClass = new
TestClass();
>>>// testClass.doStuff();
Object
aspect1 = Aspects.aspectOf(SimpleAroundAspect.class,
testClass);
}
}
THROWS:
org.aspectj.lang.NoAspectBoundException: Exception
while initializing org.stuff.SimpleAroundAspect:
java.lang.reflect.InvocationTargetException
at
org.aspectj.lang.Aspects.aspectOf(Aspects.java:66)
at
org.stuff.aspectof.SimpleAspectTest.testDifferendAspectInstanceGetsApplied(SimpleAspectTest.java:27)
at
sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at
java.lang.reflect.Method.invoke(Method.java:585)
at
junit.framework.TestCase.runTest(TestCase.java:154)
at
junit.framework.TestCase.runBare(TestCase.java:127)
at
junit.framework.TestResult$1.protect(TestResult.java:106)
at
junit.framework.TestResult.runProtected(TestResult.java:124)
at
junit.framework.TestResult.run(TestResult.java:109)
at
junit.framework.TestCase.run(TestCase.java:118)
at
org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:478)
at
org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:344)
at
org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:196)
Caused
by: java.lang.reflect.InvocationTargetException
at
sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at
java.lang.reflect.Method.invoke(Method.java:585)
at
org.aspectj.lang.Aspects.aspectOf(Aspects.java:63)
... 14
more
Caused by: org.aspectj.lang.NoAspectBoundException
at
org.stuff.SimpleAroundAspect.aspectOf(SimpleAroundAspect.java:1)
... 19
more
ASPECT:
package org.stuff;
import
org.aspectj.lang.ProceedingJoinPoint;
import
org.aspectj.lang.annotation.*;
@Aspect("pertarget(call(*
org.stuff.TestClass.*(..)))")
public class SimpleAroundAspect
{
public static int callCount = 0;
@Around("call(*
org.stuff.TestClass.*(..))")
public Object invoke(ProceedingJoinPoint
thisJoinPoint) throws Throwable {
System.err.println("called onto SimpleAroundAspect count:" +
callCount++);
return thisJoinPoint.proceed();
};
}
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