userexception.java

老外的在线考试

/*
 * UserEJB - CyberDemia's User management library implemented using EJBs.
 * Copyright (C) 2003 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;

/**
* UserException is for application-level exception in UserEJB module.
*
* @author Alexander Yap
*/
public class UserException extends Exception
{
	public static final int UNSPECIFIED = 0;
	public static final int USER_NOT_FOUND = 1;
	public static final int WRONG_PASSWORD = 2;
	public static final int DUPLICATE_EMAIL = 11;
	public static final int INVALID_USER = 21;


	public UserException(int code)
	{
		super();
		m_code = code;
	}

	public UserException(int code, String msg)
	{
		super(msg);
		m_code = code;
	}

	public UserException(int code, String msg, Throwable cause)
	{
		super(msg, cause);
		m_code = code;
	}

	public UserException(String msg, Throwable cause)
	{
		super(msg, cause);
		m_code = UNSPECIFIED;
	}

	/**
	* Gets a code that denotes the cause of this exception, such as
	* USER_NOT_FOUND, WRONG_PASSWORD, etc. If there is no specific 
	* cause, this method returns UNSPECIFIED.
	* @return Code of the cause.
	*/
	public int getCode()
	{
		return m_code;
	}

	private int m_code = UNSPECIFIED;
}