Modular J2EE, Using Spring DM, Zk and EclipseLink

package com.cp.adrabi.jln.web.todo.components;

import org.zkoss.zk.ui.Executions;
import org.zkoss.zk.ui.event.Event;
import org.zkoss.zk.ui.event.EventListener;
import org.zkoss.zk.ui.event.Events;
import org.zkoss.zul.Button;
import org.zkoss.zul.Div;
import org.zkoss.zul.Label;
import org.zkoss.zul.Row;
import org.zkoss.zul.RowRenderer;

import com.cp.adrabi.jln.model.Todo;

/**
 * Row model for Todo list
 * 
 * @author ADRABI Abderrahim (z3vil)
 *
 */
public class TodoRowModel implements RowRenderer
{

	@Override
	public void render(Row row, final Object obj) throws Exception
	{
		Todo todo = (Todo) obj;
		row.appendChild(new Label(todo.getId().toString()));
		row.appendChild(new Label(todo.getSummary()));
		
		Button btnUpdate = new Button("Update");
		btnUpdate.setAttribute("id", todo.getId());
		btnUpdate.addEventListener(Events.ON_CLICK, new EventListener() 
		{	
			@Override
			public void onEvent(Event event) throws Exception 
			{
				Object id = event.getTarget().getAttribute("id");
				Executions.sendRedirect("/admin/todo/update/id/" + id );
			}
		});
		
		Button btnRemove = new Button("Remove");
		btnRemove.setAttribute("id", todo.getId());
		btnRemove.addEventListener(Events.ON_CLICK, new EventListener() 
		{	
			@Override
			public void onEvent(Event event) throws Exception 
			{
				Object id = event.getTarget().getAttribute("id");
				Executions.sendRedirect("/admin/todo/remove/id/" + id );
			}
		});
		
		Div div = new Div();
		div.appendChild(btnUpdate);
		div.appendChild(btnRemove);
		
		row.appendChild(div);
	}

}