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* * * @param string $user * @param string $lockToken * @return void */ public function assignLock( $user, $lockToken ); /** * Returns if the given $lockToken is owned by the given $user. * * Returns true, if the $lockToken is owned by $user, false otherwise. * * @param string $user * @param string $lockToken * @return bool */ public function ownsLock( $user, $lockToken ); /** * Removes the assignement of $lockToken from $user. * * After a $lockToken has been released from the $user, the {@link * ownsLock()} method must return false for the given combination. It might * happen, that a lock is to be released, which already has been removed. * This case must be ignored by the method. * * @param string $user * @param string $lockToken */ public function releaseLock( $user, $lockToken ); } ?>