secondaryindex.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 Valentine Stepanenko ([e-mail])
 * @version 1.0
 */

package com.prudsys.pdm.Cwm.IMSDatabase;

import com.prudsys.pdm.Cwm.Core.*;

/**
 * This type holds the attributes on the relationships between a SegmentComplex
 * instance and the INDEX instances that act as secondary indexes for the DBD
 * (maps to combination of LCHILD and XDFLD statements).
 */
public class SecondaryIndex extends ModelElement
{

   /**
    * This attribute holds a character string that defines a one-byte self-defining
    * term with which every index pointer segment in a particular secondary index is
    * identified. It is used to identify index pointer segments for a specific
    * secondary index when multiple secondary indexes reside in the same database.
    */
   public com.prudsys.pdm.Cwm.Core.String constant;

   /**
    * This attribute is the name of the executable module that suppresses creation of
    * index pointer segments.
    */
   public com.prudsys.pdm.Cwm.Core.String exitRoutine;

   /**
    * This attribute holds a character string that is a one-byte self-defining term.
    * The creation of index pointer segments is suppressed when the specified value
    * is contained in the search field of an index pointer segment.
    */
   public com.prudsys.pdm.Cwm.Core.String nullValue;
   public Field subseqFields;
   public INDEX index;
   public SegmentComplex segment;
   public Field searchFields[];
   public Field ddataFields[];
   public SegmentComplex indexSource;

   public SecondaryIndex()
   {

   }
}