package jutil;
import java.util.*;
import java.io.*;

/**
 * Extends Console by adding a map for storing command
 * objects.
 */
abstract public class CommandConsole extends Console {
   /**
    * Stores command objects indexed by name.
    */
   protected Map commands = new HashMap();
   /**
    * A utility for fetching commands.
    * @param cmmd   The name of a command.
    * @return The associated Command object or null.
    */
   protected Command getCommand(String cmmd) {
      return (Command)commands.get(cmmd);
   }
   /**
    * Initializes model reference in Command class.
    */
   public CommandConsole(Serializable model) { super(model); }
   /**
    * Initializes model to null.
    */
   public CommandConsole() { this(null); }
}