Multiple ChoiceBeginner 45s
Template method vs strategy
You want to share a fixed multi-step algorithm but allow subclasses to vary *only one* step. The steps are unlikely to be needed independently. Which is the better fit?
Options
- 1Strategy: inject a whole encapsulated algorithm object through the constructor so it varies at runtime
- 2Observer: register listener objects that are notified as each step of the algorithm runs internally
- 3Command: encapsulate each individual step of the algorithm as its own request object with an execute method
- 4Template Method: the base class owns the algorithm skeleton and subclasses override hook steps
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