[jboss-user] [Javassist user questions] - Simple Field Interseption

Hi, I am just wondering if it is possible to have the following work (i.e. print out: 20 10) without having to use the javassist classloader? | class Observed { | | public int n; | | public int getN() { | return n; | } | | public void setN(int n) { | this.n = n; | } | | } | | class Observer { | | public static void writeX(Object target, int value) { | | System.out.println(value); | | } | | } | | public class ObsObrTest { | | public static void main(String[] args) throws Exception { | | ClassPool cp = ClassPool.getDefault(); | | CtClass theObserved = cp.get("Observed"); | | CtClass theObserver = cp.get("Observer"); | | CodeConverter conv = new CodeConverter(); | | conv.replaceFieldWrite(theObserved.getField("n"), theObserver, "writeX"); | | theObserved.instrument(conv); | | Class c = theObserved.toClass(); | | Observed instanceOfObserved = (Observed)c.newInstance(); | | instanceOfObserved.n = 20; //should cause the output of 20 | | instanceOfObserved.setN(10); //should cause the output of 10 | | } | } | Cheers Roja View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4081913#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...