[Jboss-dev-forums] [Javassist development Forum] - how i can use metaobject for intercept method invocation?

[icecrash <nu...@jb...>]

i have a test class named prova;
i want run class prova and intercept methos invocation,field reading,writing,and object instantiation.
I write this the follow code:


  | try{
  |      javassit.reflect.Loader cl = new javassit.reflect.Loader();
  |      cl.makeReflective("prova","VerboseMO","javassist.reflect.ClassMetaobject");
  | cl.run("prova",args);
  |     }
  | cath(Throeable e){}
  | 

and the class VerboseMO:


  | class VerboseMO extends Metaobject
  | {
  |  public VerboseMO(Object base,Object args[])
  |  {
  |   super(base,args);
  |  System.out.println("Reflective Output: New instance of:"+base.getClass().getName()+"created");
  |  }
  | 
  |  public Object trapFieldRead(String name)
  |  {
  |   
  |  }
  | 
  |  public Object trapMethodcall(int id, Object[] args)
  |  {
  |   
  |  }
  | 
  | }
  | 
  | 

this code work ,but do not know how i can intercept method call and feild call:read or write.

Can anyone help me?

View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=3876345#3876345

Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&p=3876345