//
//  DataObject.java
//
//  WELD Java Client Persistent Object Management Package 
//  Copyright Francis Chan (fchan@ic.eecs.berkeley.edu), 1997
//  University of California, Berkeley
//
//
//  This program is in the public domain.
//  Permission to use, copy, modify, and distribute this software
//  and its documentation for NON-COMMERCIAL purposes and
//  without fee is hereby granted, as long as credit is given.

import java.util.Vector;
import java.io.StreamTokenizer;

/**
 *
 * DataObject Class
 *
 * This is a class which allows data or files that can be translated to 
 * a string representation to be saved to and retrived from a remote 
 * network data server 
 *
 * @version 1.0 February 1997
 * @author  Francis Chan
 */

public class DataObject extends PersistentObject{

  private String name;
  private String content;

  // for persistent object

  public static final String objectClassName = "DataObject";
  public static final int numField = 2;
  public static final int numObjField = 0;

  /**
   * Constructor for DataObject
   *
   * @param name     The name of the object to be stored
   * @param content  The content of the object
   */
  public DataObject(String name, String content){

    this.name = name;
    this.content = content;

    netObjSetup(numField, numObjField, objectClassName);
  }

  public String getContent(){

    return content;
  }

  // just for testing
  public void setContent(String ct){

    content = ct;
    return;
  }

  /*-----------------------------------------------------------
   * The code below is required for extending PersistentObject
   * (should not be called)
   *-----------------------------------------------------------*/

  /**
   * 
   * The DataObject construction should be followed by
   * a load so that the corresponding object fields will be set
   *
   */
  public DataObject() {

    netObjSetup(numField, numObjField, objectClassName);
  }
  
  /**
   * Loads the object from a network (persistent object storage) database 
   * backend(and sets it's fields)
   */

  public boolean load(String strId) {

    if (loadObject(strId, 0, null) == false) {
      System.out.println("Couldn't load object " + objectClassName + 
                         " with strId " + strId);
      return false;
    }
    
    getObjFields();
    return successfulTransmit;
  }

  protected void setObjFields() {
    setField(0, this.name, PO.STRING);
    setField(1, this.content, PO.STRING);
  }

  protected void getObjFields() {
    this.name = getField(0, PO.STRING_INDICATOR);
    this.content = getField(1, PO.STRING_INDICATOR);
  }
}