| Name | Description |
|---|---|
| DataManager | DataManager is used to manage and manipulate relational data. |
| Deferred | Deferred is used to handle asynchronous operation. |
| Predicate | Predicate class is used to generate complex filter criteria. This will be used by DataManager to perform multiple filtering operation. |
| Query | Query class is used to build query which is used by the DataManager to communicate with datasource. |