In Oracle Application Development Framework (ADF), the ADF View and ADF Model are key components of the Model-View-Controller (MVC) architecture. They serve different purposes in application development.
1. ADF View (ADF Faces)
* Purpose: Handles the UI (User Interface) and presentation layer of the application.
* Technology: Based on JavaServer Faces (JSF) and ADF Faces components.
* Components :
- JSF Pages (.jsf, .jspx, .xhtml) – Defines the UI layout.
- ADF Faces Rich Components – Provides UI elements like tables, forms, and graphs.
- Task Flows – Manages navigation and page transitions.
* Functionality:
- Displays data from the ADF Model layer.
- Supports declarative UI binding to data sources.
- Provides drag-and-drop UI development with JDeveloper.
- Enables AJAX-based interactions for a rich user experience.
2. ADF Model (ADF Binding Layer)
* Purpose: Acts as the bridge between the UI (ADF View) and the Business Logic (ADF BC or EJBs).
* Technology: Uses data bindings and the Data Control Framework (DCF).
* Components :
- Data Controls – Define how data is accessed and manipulated.
- Binding Layer (Page Definition files) – Maps UI components to business data.
- Iterator Bindings – Controls data navigation and pagination.
- Action Bindings – Connects UI actions (e.g., button clicks) to business logic.
* Functionality:
- Provides a declarative approach to bind UI components to business data.
- Supports integration with ADF Business Components (ADF BC), Web Services, and EJBs.
- Helps maintain separation of concerns between UI and data logic.
Key Differences Between ADF View and ADF Model
| Feature |
ADF View |
ADF Model |
| Role |
Defines the UI (User Interface) |
Binds UI to business data |
| Technology |
JSF, ADF Faces |
Data Control Framework, Bindings |
| Components |
UI pages, Task Flows, Rich UI Components |
Data Controls, Page Definitions, Iterators |
| Focus |
Rendering and displaying data |
Connecting data sources to UI |
| Interaction |
Provides the visual experience for users |
Fetches, updates, and processes data |
