/*******************************************************************************
 * Copyright (c) 2007, 2009 Wind River Systems and others.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 * 
 * Contributors:
 *     Wind River Systems - initial API and implementation
 *******************************************************************************/
package org.eclipse.debug.examples.core.pda.protocol;


/**
 * Base class for PDA commands.  Sub-classes should format the request string 
 * and implement the method to create the proper result object.
 */
abstract public class PDACommand {

    final private String fRequest;
    
    public PDACommand(String request) {
        fRequest = request;
    }
    
    /**
     * Returns the request to be sent to PDA. 
     */
    public String getRequest() {
        return fRequest;
    }

    /**
     * Returns the command result based on the given PDA response.  This command 
     * uses the class type parameter as the return type to allow the compiler to 
     * enforce the correct command result.  This class must be implemented by 
     * each command to create the concrete result type. 
     */
    abstract public PDACommandResult createResult(String resultText);
}