/* 
 * This file is part of the Echo Web Application Framework (hereinafter "Echo").
 * Copyright (C) 2002 NextApp, Inc.
 *
 * Echo 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.
 *
 * Echo 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 Echo; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

import nextapp.echo.ContentPane;
import nextapp.echo.EchoInstance;
import nextapp.echo.Label;
import nextapp.echo.Window;
import nextapp.echoservlet.EchoServer;

public class HelloWorldServlet extends EchoServer {

    // Returns a new user-instance of the Echo application.
    public EchoInstance newInstance() {
        return new HelloWorld();
    }
}

class HelloWorld extends EchoInstance {

    // This init method is called when a user first visits the 
    // application.  It must return a Window object that will 
    // occupy the contents of the user's open browser window.
    public Window init() {
    
        // Create a new window.
        Window window = new Window();
        
        // Create a content pane.  Components may not be added 
        // directly to a window, only to a content pane.
        ContentPane content = new ContentPane();
        
        // Set the window's content to be the content pane.
        window.setContent(content);

        // Create a new label that says "Hello, World!"
        Label label = new Label("Hello, World!");
        
        // Add the label to the content pane.
        content.add(label);
        
        // Return the new window.
        return window;
    }
}