<code java>
package astaRMI;

import java.rmi.Remote;
import java.rmi.RemoteException;

public interface InterfacciaBattitore extends Remote {

	/** 
	 * used to make an offer. 
	 * @param name the name of who makes the offer
	 * @param howMuch the amount of the offer
	 * @return the current amount offered, 0 if the offer made is the currently accepted one
	 * @throws RemoteException
	 */
	public int offer(String name, int howMuch) throws RemoteException;
	
	/**
	 * this is used to register the callback;
	 * @param name the name of who makes the offer
	 * @param cif
	 */
	public void register(String name, ClientInterface cif) throws RemoteException; 
	
}
</code>