Hook: Define Shop MenuSheet

Requirement

The Shop's menu needs to be altered to allow for central actions to be triggered. A central action might for example be to log on application users.

Method of Adaptation

Augment feature

Level of Support

Parameter Pattern

HotSpot

MenuSheets

Hooks used

Define a MenuSheet

Participants

Shop, NewShop

Changes

1. subclass NewShop of Shop.
2. NewShop.createShopMenuSheet overrides Shop.createShopMenuSheet :
1. synchronisation ( Shop.createShopMenuSheet , NewShop.createShopMenuSheet ).
2. Define a MenuSheet [newMenuSheet = MenuSheet returned by Shop.createMenuSheet].

Comments

• In addition to adding items to the MenuSheet, you can, of course, also remove items from the default Shop MenuSheet if you want to disable certain options. For information on the contents of the default Shop MenuSheet see sale.Shop.createShopMenuSheet .
• MenuSheets offer a rich API to find options based on tags, to remove and to add options. For information on this API see sale.MenuSheet .