Hook: Define new MenuSheet for a point of sale

Requirement

A MenuSheet needs to be defined for a SalesPoint so that the application user can trigger processes by selecting options in the MenuSheet.

Method of Adaptation

Augment feature

Level of Support

Parameter Pattern

HotSpot

MenuSheets

Hooks used

Define a MenuSheet

Participants

SalesPoint, NewSalesPoint

Changes

1. subclass NewSalesPoint of SalesPoint.
2. NewSalesPoint.getDefaultMenuSheet overrides SalesPoint.getDefaultMenuSheet .
3. NewSalesPoint.getDefaultMenuSheet returns Define a MenuSheet [newMenuSheet].
4. Add a new point of sale [NewSalesPoint = NewSalesPoint].

Comments

• A SalesPoint's MenuSheet is displayed in the SalesPoint's display while no process is running.