* @param memberId the primary key of the s member
* @return the s member, or <code>null</code> if a s member with the primary key could not be found
* @throws SystemException if a system exception occurred
*/
public SMember fetchByPrimaryKey(long memberId) throws SystemException {
SMember sMember = (SMember)EntityCacheUtil.getResult(SMemberModelImpl.ENTITY_CACHE_ENABLED,
SMemberImpl.class, memberId);
if (sMember == _nullSMember) {
return null;
}