Template Method

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Define algorithm skeleton, let subclasses fill steps. Define the skeleton of an algorithm in a method, deferring some steps to subclasses. Subclasses can redefine certain steps of an algorithm without changing the algorithm’s structure.

Key Properties

• Algorithm Skeleton
• Hook Methods
• Invariant Steps

Related

• Strategy (delegation vs inheritance)
• Factory Method (template method for creation)

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design-patterns behavioral template-method