/**
* Returns the user ID of this meetups registration.
*
* @return the user ID of this meetups registration
*/publiclonggetUserId();/**
* Sets the user ID of this meetups registration.
*
* @param userId the user ID of this meetups registration
*/publicvoidsetUserId(longuserId);/**
* Returns the user uuid of this meetups registration.
*
* @return the user uuid of this meetups registration
* @throws SystemException if a system exception occurred
*/publicStringgetUserUuid()throwsSystemException;/**
* Sets the user uuid of this meetups registration.
*
* @param userUuid the user uuid of this meetups registration
*/publicvoidsetUserUuid(StringuserUuid);