groupdata.java

老外的在线考试

/*
 * UserEJB - CyberDemia's User management library implemented using EJBs.
 * Copyright (C) 2004 CyberDemia Research and Services
 * 
 * This library is free software; you can redistribute it and/or modify it under
 * the terms of the GNU Library General Public License as published by the Free
 * Software Foundation; either version 2 of the License, or (at your option) any
 * later version.
 * 
 * This library 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 Library General Public License for more
 * details.
 * 
 * You should have received a copy of the GNU Library General Public License
 * along with this library; if not, write to the Free Software Foundation, Inc.,
 * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 * 
 * See the COPYING file located in the top-level-directory of the archive of
 * this library for complete text of license.
 */
package com.cyberdemia.user;

/**
 * GroupData is a data-transfer-object that allows the client code to
 * conveniently access group data and associated users data.
 * 
 * @author Alexander Yap
 * @see LocalGroup
 */
public class GroupData implements java.io.Serializable
{

	public GroupData(Integer id, String parentId, String name, long createdMillis)
	{
		m_id = id;
		m_parentId = parentId;
		m_name = name;
		m_createdMillis = createdMillis;
	}

	public Integer getId()
	{
		return m_id;
	}

	public String getName()
	{
		return m_name;
	}

	public UserData[] getUsers()
	{
		return m_users;
	}
	
	public void setUsers(UserData[] users)
	{
		m_users = users;
	}

	public long getCreatedMillis()
	{
		return m_createdMillis;
	}
	
	public String getParentId()
	{
		return m_parentId;
	}
	
	public boolean equals(Object obj)
	{
		if ((m_id!=null) && (obj!=null) && (obj instanceof GroupData))
		{
			return m_id.equals(((GroupData)obj).getId());
		}
		return false;
	}
	
	public int hashCode()
	{
		if (m_id!=null)
		{
			return m_id.hashCode();
		}
		return 0;
	}
	
	/**
	 * Unique ID (primary key).
	 */
	private Integer m_id;

	/**
	 * Unique ID of the group's parent object.
	 */
	private String m_parentId;

	/**
	 * Name of the group.
	 */
	private String m_name;

	/**
	 * User IDs in this group.
	 */
	private UserData[] m_users;

	/**
	 * Timestamp in milliseconds when the user was created (read only).
	 */
	private long m_createdMillis;
	

}