/**
     * @ManyToOne(targetEntity="Client_Model_Client", inversedBy="contact_data")
     * @JoinColumns({
     *     @JoinColumn({name="id", referencedColumnName="contact_id"})
     * })
     */
    private $contact_id;
...


	/**
	 * @var contact_data $contact_data
	 * @Column(name="contact_data", type="integer", nullable=false)
	 * @OneToMany(targetEntity="Contact_Model_Contact", mappedBy="contact_id")
	 */
	private $contact_data;