Doctrine2: Unidirectonal One-To-Many Join Table

gistfile1.php

<?php

namespace MyCompany\MyBundle\Entity;

use Doctrine\Common\Collections\ArrayCollection;
use Doctrine\ORM\Mapping as ORM;

/**
 * MyCompany\MyBundle\Entity
 *
 * @ORM\Table()
 * @ORM\Entity(repositoryClass="MyCompany\MyBundle\\Entity\DriverRepository")
 */
class Driver
{

/**.. further entity definition .. */


	 /**
	 * 
	 * @ORM\ManyToMany(targetEntity="Document",cascade={"persist", "remove"})
	 * @ORM\JoinTable(name="Driver_Document",
	 *      joinColumns={@ORM\JoinColumn(name="driver_id", referencedColumnName="id")},
	 *      inverseJoinColumns={@ORM\JoinColumn(name="document_id", referencedColumnName="id",unique=true)}
	 *      )
	 */
    
    public $documents; 

}