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Re: [aspectj-users] Load time weaving problem
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When using LTW, the first step is to ensure that your pointcuts are
applying to the correct joinpoints. Unfortunately, AJDT doesn't help
much with this.
My suggestion to you is to turn off LTW and try to get the program
working using standard compile time weaving. You'll find that your
pointcut isn't correct.
If you can't figure it ask again and I'll tell you how to fix your pointcut.
On Sat, Sep 6, 2008 at 7:41 AM, Neo Anderson
<javadeveloper999@xxxxxxxxxxx> wrote:
> I am learning to use load-time weaving features provided by aspectj, but I can not get my example worked whilst running it. The problem is that the load-time weaving seems not work.
>
> There are two classes named character/Person.java and observer/Inspector.aj (source is as listed ) .
>
> The way how I compile it is
> 1.) compile Person.java
> javac -classpath ./ character/Person.java
> 2.) compile aspectj source
> ajc -1.6 observer/Inspector.aj (This step issues warning which oreilly's aspectj cookbook says it is ok)
>
> [warning] no match for this type name: Person [Xlint:invalidAbsoluteTypeName]
> pointcut observer(): execution(* speak(..)) && this(Person);
> ^^^^
> [Xlint:invalidAbsoluteTypeName]
> /home/neo/workspace/coding/aspectj/load-time-weaving/observer/Inspector.aj:6 [warning] advice defined in observer.Inspector has not been applied [Xlint:adviceDidNotMatch]
>
> 3.) produce outjar and export it in ASPECTPATH
> ajc -outjar lib/inspector.jar observer/Inspector.aj
> export ASPECTPATH=./lib/inspect.jar
>
> 4.) run example
> aj -javaagent:$ASPECTJ_HOME/lib/aspectjweaver.jar -cp ./ character.Person
>
> The result only shows "Jason speak : This is a book!" without weaving.
>
> What I expect is
> stage before speaking something!
> Jason speak : This is a book!
>
> Where did I do it wrong?
>
> My env: aspectj1.6/ open suse 11.0 64bit/kernel 2.6.25-1.1-default/ jdk1.6.x
>
> I appreciate any advice,
>
> Thank you very much
>
> The source is as below:
>
> package character;
>
> public class Person{
> private String name;
>
> public Person(String name){
> this.name = name;
> }
>
> public String getName(){
> return this.name;
> }
> public void setName(String name){
> this.name = name;
> }
>
> public void speak(String sentence){
> System.out.println(this.name+" speak : "+sentence);
> }
>
> public static void main(String args[]){
> new Person("Jason").speak("This is a book!");
> }
> }
>
> package observer;
>
> public aspect Inspector{
> pointcut observer(): execution(* speak(..)) && this(Person);
>
> before(): observer(){
> System.out.println("stage before speaking something!");
> }
> }
>
>
>
>
>
>
> _______________________________________________
> aspectj-users mailing list
> aspectj-users@xxxxxxxxxxx
> https://dev.eclipse.org/mailman/listinfo/aspectj-users
>
