org.sandev.ui.util
Interface SandUIAdaptor

public interface SandUIAdaptor

Implements SAND user interface over a specific display technology. The user interface is driven from a SandUI definition retrieved according to the specifications of the implementing class. The SandUIAdaptor interface defines no methods, since the UI is an endpoint driver of the SAND environment. This interface is provided solely for class identification purposes and documentation.

SandUIAdaptor responsibilities include:

• processing: The display is driven from the SandUI definition.
• authentication: As an endpoint driver, the SandUIAdaptor must determine who the user is.
• authorization: While Authorized communications will filter all data and actions, the display needs to avoid showing innaccessible fields and values.
• rendering. A Screen must be translated to a display, and the display must be translated back into a Screen for processing.

Rendering responsibilities are typically handled with the help of additional utility classes such as UIScreenAdaptor implementations.