Play 2.0 Template inclusion with "backed" logic

index.scala.html

@main("Welcome"){
  ...
  @controllers.Menu.render("home")
  ...
}

Menu.java

package controllers;

import play.api.templates.Html;
import models.MenuItem;

public class Menu {
  public static Html render(String parent) {
    List<MenuItem> menuItems = MenuItem.findByParent(parent);
    // more business logic...
    return views.html.menu.render(menuItems);
  }
}

menu.scala.html

@(menuItems: List[MenuItem])
<h2>The Menu</h2>
<ul>
  @for(menuItem <- menuItems) {
    <li><a href="@menuItem.url">@menuItem.title</a></li>
  }
</ul>