/**
     * Set persons
     *
     * @param array $persons
     * @return Contact
     */
    public function setPersons($persons)
    {
        $this->persons = $persons;
        foreach ($this->persons as $p) $p->setContact($this);

        return $this;
    }

    /**
     * Get persons
     *
     * @return array
     */
    public function getPersons()
    {
        return $this->persons;
    }

    /**
     * Add persons
     *
     * @param \ITW\ContactBundle\Entity\Person $persons
     * @return Contact
     */
    public function addPerson(\ITW\ContactBundle\Entity\Person $person)
    {

        $this->persons->add($person);
        $person->setContact($this);
        return $this;
    }