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package org.apache.wicket.examples.guestbook;

import java.ioutil.SerializableDate;	
import javaorg.apache.utilwicket.DateIClusterable;

public class Comment implements Serializable
{
    public String text;
    public Date date = new Date(); IClusterable
{
	private String text;
	private Date date = new Date();

	public Comment()
	{
	}

	public Comment(final Comment comment)
	{
		this.text = comment.text;
		this.date = comment.date;
	}

	public String getText()
	{
		return text;
	}

	public void setText(String text)
	{
		this.text = text;
	}

	public Date getDate()
	{
		return date;
	}

	public void setDate(Date date)
	{
		this.date = date;
	}

	public String toString()
	{
		return "[Comment date = " + date + ", text = " + text + "]";
	}
}

package org.apache.wicket.examples.guestbook;

import java.util.DateArrayList;
import java.util.ListDate;
import java.util.VectorList;

import org.apache.commons.lang.StringUtils;
import org.apache.wicket.markupexamples.html.WebPageWicketExamplePage;
import org.apache.wicket.markup.html.basic.Label;
import org.apache.wicket.markup.html.basic.MultiLineLabel;
import org.apache.wicket.markup.html.form.Form;
import org.apache.wicket.markup.html.form.TextArea;
import org.apache.wicket.markup.html.form.TextField;
import org.apache.wicket.markup.html.list.ListItem;
import org.apache.wicket.markup.html.list.ListViewPropertyListView;
import org.apache.wicket.model.PropertyModel.CompoundPropertyModel;
import org.apache.wicket.util.value.ValueMap;


public final class GuestBook extends WebPageWicketExamplePage
{
	/** A global list of /**all Usecomments afrom Vector,all asusers itacross isall synchronized.sessions */
    	private static final ListList<Comment> commentList = new VectorArrayList<Comment>();

	/**
	 * Constructor that is invoked privatewhen finalpage ListView commentListView;

    is invoked without a session.
	 */
	public GuestBook()
    	{
		// Add       comment form
		add(new CommentForm("commentForm"));

		// Add commentListView of     existing comments
		add(commentListView = new ListViewPropertyListView<Comment>("comments", commentList)
        {
            		{
			@Override
			public void populateItem(final ListItemListItem<Comment> listItem)
            {
                final Comment comment = (Comment)listItem.getModelObject();
                			{
				listItem.add(new Label("date", comment.date.toString()));
                				listItem.add(new MultiLineLabel("text", comment.text));
            }
        });
    }

    ));
			}
		}).setVersioned(false);
	}

	/**
	 * A form that allows a user to add a comment.
	 * 
	 * @author Jonathan Locke
	 */
	public final class CommentForm extends Form
    {
        private final Comment comment = new Comment();

        Form<ValueMap>
	{
		/**
		 * Constructor
		 * 
		 * @param id
		 *            The name of this component
		 */
		public CommentForm(final String componentNameid)
		{
			// Construct form with no validation   {
            super(componentName);
            add(new TextArea("text", new PropertyModel(comment, "text")));
        }

        listener
			super(id, new CompoundPropertyModel<ValueMap>(new ValueMap()));

			// this is just to make the unit test happy
			setMarkupId("commentForm");

			// Add text entry widget
			add(new TextArea<String>("text").setType(String.class));

			// Add simple automated spam prevention measure.
			add(new TextField<String>("comment").setType(String.class));
		}

		/**
		 * Show the resulting valid edit
		 */
		@Override
		public final void onSubmit()
		{
			ValueMap values = getModelObject();

			// check if the honey {
pot is filled
			if (StringUtils.isNotBlank((String)values.get("comment")))
			{
				error("Caught a spammer!!!");
				return;
			}
			// Construct a copy of the  final edited comment
			Comment newCommentcomment = new Comment();

			// Set date of comment        newComment.text = comment.text;

            to add
			comment.setDate(new Date());
			comment.setText((String)values.get("text"));
			commentList.add(0, newCommentcomment);

			// Clear out the         commentListView.modelChanged();

            comment.text = "";
        }
    text component
			values.put("text", "");
		}
	}

	/**
	 * Clears the comments.
	 */
	public static void clear()
	{
		commentList.clear();
	}
}

<html>
<body>
<html xmlns:wicket="http://wicket.apache.org/">
<head>
	<title>Wicket Examples - guestbook</title>
	<link rel="stylesheet" type="text/css" href="style.css"/>
</head>
<body>
  <span wicket:id="mainNavigation"/>

  <form wicket:id = "commentForm" id = "commentForm">
    Add your comment here:
    <p>
    <textarea wicket:id = "text">This is a comment</textarea>
    <input type="text" wicket:id="comment" class="nospam" onfocus="getElementById('formsubmit').focus();"/>
    <p>
    <input type = "submit" value = "Submit" id="formsubmit"/>
  </form>
  <p><p/>
  <span wicket:id = "comments" id="comments">
    <p>
    	    <span wicket:id = "date">1/1/2004</span><br>
   	     <span wicket:id = "text">Comment text goes here.</span>
    	</p>
  </span>
  <wicket:remove>
    <p>
   	     1/2/2004<br/>
	        More comment text here.
    </p>
  </wicket:remove>
</body>
</html>

package org.apache.wicket.examples.guestbook;

import org.apache.wicket.protocol.http.WebApplication.Page;
import org.apache.wicket.examples.WicketExampleApplication;

public class GuestBookApplication extends WebApplicationWicketExampleApplication
{
	/**
	 *   Constructor
	 */
	public GuestBookApplication()
    	{

    }
    
    public Class	}

	/**
	 * @see org.apache.wicket.Application#getHomePage()
	 */
	@Override
	public Class< ? extends Page> getHomePage()
    	{
        		return GuestBook.class;
    	}
}

<servlet>
  <servlet<filter>
	<filter-name>GuestBookApplication</servletfilter-name>
  <servlet-class>wicket	<filter-class>org.apache.wicket.protocol.http.WicketServlet<WicketFilter</servletfilter-class>
  	<init-param>
 	   <param-name>applicationClassName</param-name>
 	   <param-value>wicketvalue>org.apache.wicket.examples.guestbook.GuestBookApplication</param-value>
  	</init-param>
  <load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
  <servlet-name>GuestBookApplication</servlet-name>
  <url-pattern>/app/*</url-pattern>
</servlet-mapping></filter>