datanode.java

为了下东西 随便发了个 datamining 的源代码

/*
 *    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.
 */

package eti.bi.alphaminer.vo; 

import java.util.Enumeration;
import java.util.Hashtable;
/**
 * <p>Title: KBBI Application</p>
 * <p>Description: A Knowledge Based Business Intelligence Platform</p>
 * <p>Copyright: Copyright (c) 2004</p>
 * <p>Company: E-Business Technology Institute, HKU</p>
 * @author Anny Chiu
 * @version 1.0
 */

public class DataNode extends Node {

  /**
	 * 
	 */
	private static final long serialVersionUID = 1L;
private String m_ID;
  private String m_Type;
  private String m_Location;
  private String m_Name;
  private String m_Description;
  private Hashtable<String, String> m_TableList;

  public DataNode() {
	super();
  }

  public DataNode(String a_CaseID) {
    super(a_CaseID, NodeFactory.DATA);
    m_TableList = new Hashtable<String, String>();
  }

  public DataNode(String a_CaseID, DataNode a_DataNode) {
	super(a_CaseID, NodeFactory.DATA);
	
	setID(a_DataNode.getID());
	setType(a_DataNode.getType());
	setLocation(a_DataNode.getLocation());
	setName(a_DataNode.getName());
	setDescription(a_DataNode.getDescription());
		
	m_TableList = new Hashtable<String, String>();
	String[][] tables = a_DataNode.getDataTableArray();
	for (int i=0; tables!=null && i<tables.length; i++)	
		setDataTable(tables[i][0], tables[i][1]);
  }

  public String getID()
  {
    return m_ID;
  }

  public void setID(String a_ID)
  {
    m_ID = a_ID;
  }

  public String getType()
  {
    return m_Type;
  }

  public void setType(String a_Type)
  {
    m_Type = a_Type;
  }

  public String getLocation()
  {
    return m_Location;
  }

  public void setLocation(String a_Location)
  {
    m_Location = a_Location;
  }

  public String getName()
  {
    return m_Name;
  }

  public void setName(String a_Name)
  {
    m_Name = a_Name;
  }

  public String getDescription()
  {
    return m_Description;
  }

  public void setDescription(String a_Description)
  {
    m_Description = a_Description;
  }

  public Hashtable<String, String> getDataTable()
  {
  	return m_TableList;
  }
  
  public void setDataTable(Hashtable<String, String> a_Table)
  {
  	m_TableList = a_Table;
  }

  public String[][] getDataTableArray()
	{
    if (m_TableList.isEmpty())
      return null;
    String[][] tables = new String[m_TableList.size()][2];
    Enumeration<String> em = m_TableList.keys();
    String table = null;
    String value = null;
    int i = 0;
    while (em.hasMoreElements())
    {
      table = em.nextElement();
      tables[i][0] = table;
      value = m_TableList.get(table);
      tables[i][1] = value;
      i++;
    }
    return tables;  
}
  public String/*DataTable*/ getDataTable(String a_Name)
  {
    if (a_Name==null)
      System.err.println("In DataNode:getDataTable: key is null");
    return m_TableList.get(a_Name);
  }

  public void setDataTable(String a_Key, String a_Table/*DataTable a_Table*/)
  {
    if (a_Key==null)
      System.err.println("In DataNode:setDataTable: key is null");
    if (a_Table==null)
      System.err.println("In DataNode:setDataTable: table is null");
    m_TableList.put(a_Key, a_Table);
  }

  public int getTableListSize()
  {
    return m_TableList.size();
  }
}