gistfile1.php

<?php

/** @Document */
class Article
{
    /** @Id */
    public $id;

    /** @String */
    public $title;

    /** @Lock @Int */
    public $locked;

    /** @Version @Int */
    public $version = 1;

    /** @Version @Date */
    //public $version;

    public function __construct($title = null)
    {
        $this->title = $title;
    }

    public function getId()
    {
        return $this->id;
    }

    public function getTitle()
    {
        return $title;
    }

    public function getVersion()
    {
        return $this->version;
    }
}