/*
 * @(#)ReadingMaterial.java	1.1 97/12/12        
 *
 * Copyright (c) 1997 Sun Microsystems, Inc. All Rights Reserved.
 *
 * This software is the confidential and proprietary information of Sun
 * Microsystems, Inc. ("Confidential Information").  You shall not
 * disclose such Confidential Information and shall use it only in
 * accordance with the terms of the license agreement you entered into
 * with Sun.
 *
 * SUN MAKES NO REPRESENTATIONS OR WARRANTIES ABOUT THE SUITABILITY OF THE
 * SOFTWARE, EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
 * PURPOSE, OR NON-INFRINGEMENT. SUN SHALL NOT BE LIABLE FOR ANY DAMAGES
 * SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING OR DISTRIBUTING
 * THIS SOFTWARE OR ITS DERIVATIVES.
 *
 * 
 */

import java.io.*;

/**
 * The superclass DOES NOT implement externalizable
 */
class ReadingMaterial  {
    
    /*
     * In order for us to be able to serialize this data, these must be
     * either serializable/externalizable objects or primitive data types. 
     *
     *
     * We do not make these private because we need the subclass Book to be
     * able to save the state of this superclass.
     * Alternatively, we could make these private and create set and get
     * functions that would allow access to the Book subclass. 
     * If we failed to do that with private fields, then fields would not
     * be saveable!
     */
    String author;
    String subject;
    int yearwritten;
    
    // other relevant data and methods 
    // .
    // .
    // .
  
    /* 
     * A public no-arg constructor so that an externalizable sub-class can
     * use it. If this did not exist, then the subclass would have to call
     * the regular argument constructor with default arguments in its own
     * public no-arg constructor
     */
    public ReadingMaterial() {}

    ReadingMaterial(String auth, String sub, int year) {
	author = auth;
	subject = sub;
	yearwritten = year;
    }
}