field.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.Record.FixedOffsetField;

/**
 * This sub-type is used to add the attributes that apply to a Record Field only
 * within the context of a specific DBD. One or more Fields within a Segment can
 * be defined as a Sequence Field, which is the Key for the segment. A Sequence
 * Field can be defined as Unique or Multiple. A Segment description does not have
 * to include all of the Fields defined within the data structure.
 */
public class Field extends FixedOffsetField
{

   /**
    * This attribute is a flag to indicate whether the dataItem instance should be
    * generated as a sequence field or not.
    */
   public Boolean sequenceField;

   /**
    * This attribute is a flag to indicate whether the dataItem instance should be
    * generated as a unique sequence field.
    */
   public Boolean uniqueSequence;

   /**
    * The attribute holds the length of the data item. This value should come from
    * the data item itself.
    */
   public Integer fieldLength;

   /**
    * Indicates if the field has been generated by analyzing the "copybook"
    * associated with the structure/segment, or if the field is coming directly from
    * the IMS catalog
    */
   public Boolean generated;
   public SecondaryIndex subseqIndex;
   public SecondaryIndex searchIndex[];
   public SecondaryIndex ddataIndex[];
   public SenField senField[];

   public Field()
   {

   }
}