ADataProvider Abstract Class

The ADataProvider is the foundational abstract class that powers structured data views in the Katlux ecosystem. It is specifically designed for complex UI components that require pagination, filtering, and sorting, rather than for arbitrary application state. It is extended by specialized Flat Providers (for tabular data) and Tree Providers (for hierarchical tree data).

Flat Data Providers

Manage standard flat arrays of data. Ideal for datatables, lists, and standard grids.

• Flat ClientSide DataProvider — Manages a local, in-memory array of flat data. Handles pagination, filtering, and sorting entirely on the client side.
• Flat ServerSide DataProvider — Delegates data fetching to a custom handler function. Useful when fetching logic is non-standard.
• Flat API ClientSide DataProvider — Connects to an API to fetch data but manages the dataset locally on the client.
• Flat API ServerSide DataProvider — Automatically pushes pagination, sorting, and filtering state to your backend API as query parameters.

Tree Data Providers

Manage hierarchical data. Ideal for tree views, nested lists, and category structures.

• Tree ClientSide DataProvider — Manages a local, in-memory array of nested data, building the tree locally.
• Tree ServerSide DataProvider — Delegates hierarchical data fetching to a custom handler function.
• Tree API ClientSide DataProvider — Fetches tree data from an API, then manages the hierarchical structure and node expansion locally.
• Tree API ServerSide DataProvider — Automatically syncs expanded nodes, pagination, and tree traversal with your backend API.