Hook: Define StoringStock Filter

Requirement

Only selected items of a StoringStock shall be visible to a part of an application.

Filters are most often used in connection with displaying the contents of StoringStocks. If you want to display only selected StockItems, use a filtered StoringStock.

Method of Adaptation

Enable Feature

Level of Support

Parameter Pattern

HotSpot

Filters

Participants

StoringStockFilter, NewFilter , StoringStock, originalStoringStock , filteredStoringStock

Changes

1. subclass NewFilter of StoringStockFilter.
2. NewFilter.contains implements StoringStockFilter.contains returning true for every StockItem that shall be part of the filtered Stock.
3. instance originalStoringStock of StoringStock.
4. instance filteredStoringStock of NewFilter with parameter originalStoringStock.