Overloaded function question

Question

I have the following two classes:
public class AClass implements Serializable;
public class RAClass extends AClass;
I have a remote EJB interface named Alarm where two methods in the remote interface look like this:
public long setAlarm(String usr, String pwd, AClass ac) throws RemoteException;
public long setAlarm(String usr, String pwd, RAClass rac) throws RemoteException;
Finally, in another class I have the following method:
public void writeAlarm(AClass ac) {
Alarm remoteObj;
//code to grab remote interface
System.out.println("class of ac "+ac.getClass().getName());
remoteObj.setAlarm(ac);
At runtime, the setAlarm call with the signature containing the base AClass is always called even when the ac object passed to writeAlarm is an object of type RACClass. I've even verified the type of the object with the println.
From reading the Java language specification, my understanding is that when the writeAlarm is called with an RACObject the setAlarm call with the RACClass in the signature should be the one called.
Is my reasoning wrong? Am I doing something else wrong?

Answer 1

granted that EJB is kinda goofy... this kinda popped out at me...
public long setAlarm(String usr, String pwd, AClass ac) throws RemoteException;interface has two methodd with 3 parameter arguments...
but looking at the rest of the code posted, i only see this call to said methods...
remoteObj.setAlarm(ac);and that method only takes one argument...
which would indicate that there is a method that you declared that only takes one arguement ... and what type does it take ? my thinking is probably an AClass...
and that method would be able to accept both AClass and RAClass... being that RAClass " is a " AClass...
have fun... :-)
- MaxxDmg...
- " He who never sleeps... "