@RequiresSession
  public List<ConfigGroupHostMappingEntity> findAll() {
    return daoUtils.selectAll(entityManagerProvider.get(), ConfigGroupHostMappingEntity.class);
  }
Return entity object which can be used for operations like remove
directly.
@param configGroupHostMappingEntityPK
@return
ambari-server/src/main/java/org/apache/ambari/server/orm/dao/ConfigGroupHostMappingDAO.java