| Interface | Description | 
|---|---|
| SortOrder | Represents a sort order in the public expression API. | 
| Class | Description | 
|---|---|
| SortOrders | Helper methods to create SortOrders to pass into Gravitino. | 
| SortOrders.SortImpl | Create a sort order by the given expression with the given sort direction and null ordering. | 
| Enum | Description | 
|---|---|
| NullOrdering | A null order used in sorting expressions. | 
| SortDirection | A sort direction used in sorting expressions. |