On Feb 13, 2008, at 10:00 AM, [EMAIL PROTECTED] wrote:
Greetings,
I am trying to put a joinpoint on a java.util.ArrayList class.
But on runtime the advice is never executed.
Did I miss something, or is it simply impossible to put a joinpoint
on a Java API class ?
Here is my aspect code :
pointcut grouik() : get(* java.util.ArrayList.*);
after() returning() : grouik() {
System.out.println("grouik");
}
This join point attempts to call reads of any fields of an ArrayList
object. If that's what you meant, by default, AJ won't insert advice
in JDK classes. This was primarily because of Sun's licensing
restrictions about modifying the byte code of the JVM and libraries.
There are workarounds documented on the net. The licensing restriction
is more or less going away since Java is transitioning to open source.
However, if you meant "match all field reads in my classes of type
ArrayList", it would be
pointcut grouik(): get (java.util.ArrayList ...*.*)
(The three dots mean: ".." any packages, arbitrarily deep + "." the
usually package separator - before the first "*" for matching any
class/interface)
Hope that helps.
dean
Thanks in advance.
Laurent Delaforge
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Dean Wampler, Ph.D.
dean at objectmentor.com
http://www.objectmentor.com
See also:
http://www.aspectprogramming.com AOP advocacy site
http://aquarium.rubyforge.org AOP for Ruby
http://www.contract4j.org Design by Contract for Java5
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