import java.io.Serializable;
import java.rmi.Remote;
import java.rmi.RemoteException;

/**
 * Interface for worker process in simple master/worker example using RMI.
 * (Apparently both a class and an interface are needed for RMI remote objects.)
 * Classes implementing this interface must override "equals" in a way that will
 * allow the master process to identify two workers as "the same" even though
 * the representing objects (as passed to its methods via RMI) are different.
 */
public interface RMIWorkerInterface extends Remote, Serializable {

    /**
     * Gets hostname for worker.
     */
    String hostName() throws RemoteException;

    /**
     * Gets total number of tasks completed by worker.
     */
    int numTasks() throws RemoteException;

    /**
     * Gets total time used by worker.
     */
    int totalTime() throws RemoteException;
}