> For the complete documentation index, see [llms.txt](https://docs.pentaho.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.pentaho.com/install/10.2-install/multidimensional-data-modeling-in-pentaho/about-multidimensional-expression-language/mondrian-schema-element-reference/hierarchygrant/attributes.md).

# Attributes

| Attribute    | Data Type | Definition                                                                                                                                                                                                                        |
| ------------ | --------- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| hierarchy    | String    | The unique name of the hierarchy                                                                                                                                                                                                  |
| topLevel     | String    | Unique name of the highest level of the hierarchy from which this role is allowed to see members. May only be specified if the **HierarchyGrant.access** is custom. If not specified, role can see members up to the top level.   |
| bottomLevel  | String    | Unique name of the lowest level of the hierarchy from which this role is allowed to see members. May only be specified if the **HierarchyGrant.access** is custom. If not specified, role can see members down to the leaf level. |
| rollupPolicy | String    | Policy which determines how cell values are calculated if not all of the children of the current cell are visible to the current role. Allowable values are full (the default), partial, and hidden.                              |


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