Method setOverwrite

/**
 * Set the allow overwrite switch
 *
 * @param   boolean  $state  Overwrite switch state
 *
 * @return  boolean  True it state is set, false if it is not
 *
 * @since   3.1
 */
public function setOverwrite($state = false)
{
    $tmp = $this->overwrite;
    if ($state) {
        $this->overwrite = true;
    } else {
        $this->overwrite = false;
    }
    return $tmp;
}