public function parseConstraints($constraints)
    {
        if (!isset(self::$constraints[$constraints])) {
            self::$constraints[$constraints] = parent::parseConstraints($constraints);
        }

        return self::$constraints[$constraints];
    }
public function parseConstraints($constraints)
    {
        if (!isset(self::$constraints[$constraints])) {
            self::$constraints[$constraints] = parent::parseConstraints($constraints);
        }

        return self::$constraints[$constraints];
    }
public function parseConstraints ( $ constraints ) { if ( ! isset ( self :: $ constraints [ $ constraints ] ) ) { self :: $ constraints [ $ constraints ] = parent :: parseConstraints ( $ constraints ) ; } return self :: $ constraints [ $ constraints ] ; }
{@inheritDoc}
{