Extending Web Dynpro Components

This procedure describes the general steps for creating extension points in the Composite Designer. The usual scenario is that you create an extension point in your composite application (product) and then you ship it to your customers. Afterwards, the customers create extensions in their composite applications (products).

To create an extension point, you need to have Web Dynpro development components (DCs) in your workspace. These are the development components that contain the interface definitions whose implementation will be exchanged during runtime.

Prerequisites

You have created a Web Dynpro DC and a Web Dynpro component.
For more information, see Creating a Web Dynpro DC

For more information, see Creating Components
You have created a usage connection and an implementation connection in Web Dynpro.
For more information, see Using Connections for Extensibility

Procedure

In the Composite Designer, select the relation between the two Web Dynpro Components.
Using the right mouse button, choose Create Extension Point.
The Composite Designer marks the relation as an extension point using a special symbol.
Follow the instructions in the Add Entities to Public Part wizard and choose Finish.
The system creates extension points for a Web Dynpro component. During runtime, the target component of the relation can be exchanged with the customer extension.

More Information

For more information about creating extensions, refer to Creating Extensions

For more information about how to switch the composite usage of one extension to another, refer to Activating and Deactivating Extensions

For more information on extensibility configuration framework, refer to Customizing Applications with the Extensibility Configuration Framework