/*
 * JBoss, Home of Professional Open Source
 * Copyright 2005, JBoss Inc., and individual contributors as indicated
 * by the @authors tag. See the copyright.txt in the distribution for a
 * full listing of individual contributors.
 *
 * This 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 2.1 of
 * the License, or (at your option) any later version.
 *
 * This software 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 software; if not, write to the Free
 * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
 * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
 */
package org.jbpm.pvm.internal.history.model;

import java.util.ArrayList;
import java.util.List;

import org.jbpm.api.JbpmException;
import org.jbpm.api.history.HistoryComment;


/**
 * @author Tom Baeyens
 */
public class HistoryCommentImpl extends HistoryDetailImpl implements HistoryComment {

  private static final long serialVersionUID = 1L;

  protected String message;
  protected List<HistoryCommentImpl> replies = new ArrayList<HistoryCommentImpl>();
  
  public HistoryCommentImpl() {
  }

  public HistoryCommentImpl(String message) {
    // superclass has dummy string constructor to differentiate from  
    // the default constructor which is used by hibernate 
    super(null);
    if (message==null) {
      throw new JbpmException("message is null");
    }
    this.message = message;
  }
  
  public String toString() {
    return (userId!=null ? userId+" comments: " : "comment: ")+message; 
  }
  
  // replies //////////////////////////////////////////////////////////////////
  
  public HistoryCommentImpl createReply(String message) {
    HistoryCommentImpl reply = new HistoryCommentImpl(message);
    replies.add(reply);
    return reply;
  }

  public List<HistoryComment> getReplies() {
    return (List) replies;
  }
  
  // getters and setters //////////////////////////////////////////////////////

  public String getMessage() {
    return message;
  }
  public void setMessage(String message) {
    this.message = message;
  }
}