* @throws SystemException if a system exception occurred
*/
@Override
public LFQuizTreeElement fetchByPrimaryKey(Serializable primaryKey)
throws SystemException {
LFQuizTreeElement lfQuizTreeElement = (LFQuizTreeElement) EntityCacheUtil.getResult(LFQuizTreeElementModelImpl.ENTITY_CACHE_ENABLED,
LFQuizTreeElementImpl.class, primaryKey);
if (lfQuizTreeElement == _nullLFQuizTreeElement) {
return null;
}