api-platform / core

     *

     * @return string

     */

    public static function getJoinRelationship(Join $join) : string

    {

        static $relationshipProperty = null;

        static $initialized = false;

        if (!$initialized && !method_exists(Join::class, 'getJoin')) {

            $relationshipProperty = new \ReflectionProperty(Join::class, '_join');

            $relationshipProperty->setAccessible(true);

            $initialized = true;

        }

        return (null === $relationshipProperty) ? $join->getJoin() : $relationshipProperty->getValue($join);

    }

    /**

     * Gets the alias from a Join expression.

     *

     * @return string

     */

    public static function getJoinAlias(Join $join) : string

    {

        static $aliasProperty = null;

        static $initialized = false;

        if (!$initialized && !method_exists(Join::class, 'getAlias')) {

            $aliasProperty = new \ReflectionProperty(Join::class, '_alias');

            $aliasProperty->setAccessible(true);

            $initialized = true;

        }

        return (null === $aliasProperty) ? $join->getAlias() : $aliasProperty->getValue($join);

    }

    /**

     * Gets the parts from an OrderBy expression.

     *

     * @return string[]

     */

    public static function getOrderByParts(OrderBy $orderBy) : array

    {

        static $partsProperty = null;

        static $initialized = false;

        if (!$initialized && !method_exists(OrderBy::class, 'getParts')) {

            $partsProperty = new \ReflectionProperty(OrderBy::class, '_parts');

            $partsProperty->setAccessible(true);

            $initialized = true;

        }

        return (null === $partsProperty) ? $orderBy->getParts() : $partsProperty->getValue($orderBy);

    }

}