cwmtools.java

一个数据挖掘软件ALPHAMINERR的整个过程的JAVA版源代码

/*
 *    This program is free software; you can redistribute it and/or modify
 *    it under the terms of the GNU General Public License as published by
 *    the Free Software Foundation; either version 2 of the License, or
 *    (at your option) any later version.
 *
 *    This program is distributed in the hope that it will be useful,
 *    but WITHOUT ANY WARRANTY; without even the implied warranty of
 *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *    GNU General Public License for more details.
 *
 *    You should have received a copy of the GNU General Public License
 *    along with this program; if not, write to the Free Software
 *    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 */

 /**
  * Title: XELOPES Data Mining Library
  * Description: The XELOPES library is an open platform-independent and data-source-independent library for Embedded Data Mining.
  * Copyright: Copyright (c) 2002 Prudential Systems Software GmbH
  * Company: ZSoft (www.zsoft.ru), Prudsys (www.prudsys.com)
  * @author Michael Thess
  * @version 1.0
  */

package com.prudsys.pdm.Cwm.Core;

import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;


/**
 * Collection of useful CWM utilities.
 */
public class CWMTools {

  /**
   * Converts an object array into a list of objects. If the array is null,
   * an empty array list is created.
   *
   * @param array array of objects
   * @return list of objects
   */
  @SuppressWarnings("unchecked")
public static List ArrayToList(Object[] array) {

    if (array == null)
      return new ArrayList();

    return new ArrayList( Arrays.asList(array) );
  }

  /**
   * Returns element at specified index.
   *
   * @param array array of elements
   * @param index index of specified object
   * @return specified object, null if not found
   */
  public static Object getElement(Object[] array, int index) {

    if (array == null) return null;
    if (index < 0 || index >= array.length)
      return null;

    return array[index];
  }
}