sqlstructuredtype.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.Relational;

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


/**
 * A Datatype defined as Structured Type, per [SQL] standard.
 */
public class SQLStructuredType extends SQLDataType implements org.omg.cwm.resource.relational.SQLStructuredType
{
   public NamedColumnSet columnSet[];
   public Column referencingColumn[];

   public SQLStructuredType()
   {

   }

   public Collection getColumnSet() {
     return com.prudsys.pdm.Cwm.Core.CWMTools.ArrayToList(columnSet);
   }

   public void setColumnSet(Collection columnSet) {

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

   public void addColumnSet( org.omg.cwm.resource.relational.NamedColumnSet input) {

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

   public void removeColumnSet( org.omg.cwm.resource.relational.NamedColumnSet input) {

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

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

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

   public Collection getReferencingColumn() {
     return com.prudsys.pdm.Cwm.Core.CWMTools.ArrayToList(referencingColumn);
   }

   public void setReferencingColumn(Collection referencingColumn) {

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

   public void addReferencingColumn( org.omg.cwm.resource.relational.Column input) {

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

   public void removeReferencingColumn( org.omg.cwm.resource.relational.Column input) {

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

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

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