uniquekey.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.KeysIndexes;

import java.util.Iterator;
import java.util.Collection;
import java.util.List;

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

/**
 * A UniqueKey represents a collection of features of some Class that, taken
 * together, uniquely identify instances of the Class. Instances of UniqueKey for
 * which all features are required to have non-null values are candidates for use
 * as primary keys such as those defined by relational DBMSs.
 */
public class UniqueKey extends ModelElement implements org.omg.cwm.foundation.keysindexes.UniqueKey
{
   public StructuralFeature feature[];
   public KeyRelationship keyRelationship[];

   public UniqueKey()
   {

   }

   public List getFeature() {

     return CWMTools.ArrayToList(feature);
   }

   public void setFeature(Collection feature) {

     this.feature = new StructuralFeature[ feature.size() ];
     Iterator it = feature.iterator();
     for (int i = 0; i < feature.size(); i++)
       this.feature[i] = (StructuralFeature) it.next();
   }

   public void addFeature( org.omg.cwm.objectmodel.core.StructuralFeature input) {

     int size = (feature == null) ? 0 : feature.length;
     StructuralFeature[] oldData = feature;
     feature = new StructuralFeature[size+1];
     if (size > 0) System.arraycopy(oldData, 0, feature, 0, size);
     feature[size] = (StructuralFeature) input;
   }

   public void removeFeature( org.omg.cwm.objectmodel.core.StructuralFeature input) {

     int size = (feature == null) ? 0 : feature.length;
     if (size == 0)
       return;

     int ipos = -1;
     for (int i = 0; i < size; i++)
       if (feature[i].equals(input)) {
         ipos = i;
         break;
       }
     if (ipos == -1)
       return;

     StructuralFeature[] oldData = feature;
     feature = new StructuralFeature[size-1];
     for (int i = 0; i < ipos; i++)
       feature[i] = oldData[i];
     for (int i = ipos+1; i < size; i++)
       feature[i-1] = oldData[i];
   }

   public void addFeatureBefore( org.omg.cwm.objectmodel.core.StructuralFeature before, org.omg.cwm.objectmodel.core.StructuralFeature input) {

   }

   public void addFeatureAfter( org.omg.cwm.objectmodel.core.StructuralFeature before, org.omg.cwm.objectmodel.core.StructuralFeature input) {

   }

   public void moveFeatureBefore( org.omg.cwm.objectmodel.core.StructuralFeature before, org.omg.cwm.objectmodel.core.StructuralFeature input) {

   }

   public void moveFeatureAfter( org.omg.cwm.objectmodel.core.StructuralFeature before, org.omg.cwm.objectmodel.core.StructuralFeature input) {

   }

   public Collection getKeyRelationship() {

     return CWMTools.ArrayToList(feature);
   }

   public void setKeyRelationship(Collection input) {

     int size = (keyRelationship == null) ? 0 : keyRelationship.length;
     KeyRelationship[] oldData = keyRelationship;
     keyRelationship = new KeyRelationship[size+1];
     if (size > 0) System.arraycopy(oldData, 0, keyRelationship, 0, size);
     keyRelationship[size] = (KeyRelationship) input;
   }

   public void addKeyRelationship( org.omg.cwm.foundation.keysindexes.KeyRelationship input) {

     int size = (keyRelationship == null) ? 0 : keyRelationship.length;
     KeyRelationship[] oldData = keyRelationship;
     keyRelationship = new KeyRelationship[size+1];
     if (size > 0) System.arraycopy(oldData, 0, keyRelationship, 0, size);
     keyRelationship[size] = (KeyRelationship) input;
   }

   public void removeKeyRelationship( org.omg.cwm.foundation.keysindexes.KeyRelationship input) {

     int size = (keyRelationship == null) ? 0 : keyRelationship.length;
     if (size == 0)
       return;

     int ipos = -1;
     for (int i = 0; i < size; i++)
       if (keyRelationship[i].equals(input)) {
         ipos = i;
         break;
       }
     if (ipos == -1)
       return;

     KeyRelationship[] oldData = keyRelationship;
     keyRelationship = new KeyRelationship[size-1];
     for (int i = 0; i < ipos; i++)
       keyRelationship[i] = oldData[i];
     for (int i = ipos+1; i < size; i++)
       keyRelationship[i-1] = oldData[i];
   }
}