selectattribute.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 Carsten Weisse
  * @author Michael Thess
  * @version 1.2
  */

package com.prudsys.pdm.Input.Multidimensional;

import java.util.Vector;

 /**
 * Class representing OLAP-like selection criteria for one attribute.
 */
public class SelectAttribute extends com.prudsys.pdm.Cwm.Core.Attribute
{
  // -----------------------------------------------------------------------
  //  Variables declarations
  // -----------------------------------------------------------------------
  /** Vector of categories of selection attribute. */
  private Vector categories;

  // -----------------------------------------------------------------------
  //  Constructor
  // -----------------------------------------------------------------------
  /**
   * Empty constructor.
   */
  public SelectAttribute() {
  }

  /**
   * Constructor with given selection name and categories.
   *
   * @param name name of selection attribute
   * @param categories vector of selection categories of selection attribute
   */
  public SelectAttribute(String name, Vector categories) {

    this.setName(name);
    this.categories = categories;
  }

  /**
   * Constructor with given selection name and category.
   *
   * @param name name of selection attribute
   * @param category selection category name of selection attribute
   */
  public SelectAttribute(String name, String category) {

    this.setName(name);
    this.categories = new Vector();
    this.categories.addElement(category);
  }

  // -----------------------------------------------------------------------
  //  Getter and setter methods
  // -----------------------------------------------------------------------
  /**
   * Returns vector of selection categories.
   *
   * @return vector of selection categories
   */
  public Vector getCategories()
  {
    return categories;
  }

  /**
   * Sets new vector of selection categories.
   *
   * @param categories new vector of selection categories
   */
  public void setCategories(Vector categories)
  {
    this.categories = categories;
  }

  /**
   * Adds category to selection categoroes.
   *
   * @param category new category to add
   */
  public void addCategory(String category)
  {
    this.categories.addElement(category);
  }

  // -----------------------------------------------------------------------
  //  java.lang.Object methods
  // -----------------------------------------------------------------------
  /**
   * Find out if two selection attributes are equal.
   * They must have the same name and the same categories.
   *
   * @param obj the selection attribute to compare with
   * @return true if equal, otherwise false
  */
  public boolean equals(Object obj)
  {
      SelectAttribute sa = (SelectAttribute) obj;

      if ( !this.getName().equals( sa.getName() ) )
        return false;   // different names

      if ( this.categories.size() != sa.getCategories().size() )
        return false;   // different sizes

      for( int i = 0; i < this.categories.size(); i++ )
        if ( sa.getCategories().indexOf( this.categories.elementAt(i) ) == -1 )
          return false; // different categories

      return true;
  }

}