[aspectwerkz-user] Aspect.aspectOf() behaviour
"AVERY, Neil, FM" <[email protected]> Mon, 17 Oct 2005 14:24:06 +0100
| Newsgroups | gmane.comp.java.aspectwerkz.user |
|---|---|
| Message-ID | <DDCC15E558B3F142A8F72A157FBB63BE144A6CAA@lon0348xns.fm.rbsgrp.net> |
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(S
impleAspectTest.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(RemoteTestRu
nner.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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