/*  PAT: Persistent Applications Toolkit (patsystem.sf.net)
 *  Copyright (C) 2004, 2005  Tomasz Nazar, nthx at irc dot pl
 *
 *  This library is free software; you can redistribute it and/or
 *  modify it under the terms of the GNU Lesser 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
 *  Lesser General Public License for more details.
 *
 *  You should have received a copy of the GNU Lesser 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
 *
 *  Full version of the license is /docs/LICENSE.txt
 */
package org.nthx.pat.demo;

import java.util.Date;
import java.util.GregorianCalendar;

/**
 *  @@pat.bo
 *
 *  @version $Id: Topic.java 3725 2005-06-09 23:57:03Z nthx $
 *  @author nthx@users.sourceforge.net
 */
public class Topic
{
    //--- Fields ----------------
    private String subject;
    private Date startTime;
    private Messages messages;
    private User author;

    //--- Constructors ----------
    public Topic(String subject, User author, String contents)
    {
        this.subject = subject;
        this.startTime = GregorianCalendar.getInstance().getTime();
        this.author = author;

        messages = new Messages();
        newMessage(author, contents, startTime);
    }

    //--- Getters and Setters ---
    public String getSubject() { return subject; }
    public Messages getMessages() { return messages; }
    public User getAuthor() { return author; }
    
    //--- Implementation --------
    /** @@pat.transaction */
    public void newMessage(User author, String contents, Date date)
    {
        messages.addMessage(new Message(this, author, contents, date));
    }


    public String toString()
    {
        return "[Topic: " 
               + subject
               + "]";
    }

    protected final static long serialVersionUID = 1L;
}