strategy pattern 예문

• The Strategy Pattern is used to accomplish this goal.
• The strategy pattern uses composition instead of inheritance.
• In the strategy pattern, behaviors are defined as separate interfaces and specific classes that implement these interfaces.
• It has been described as a compile-time variant of the strategy pattern, and has connections with C + + template metaprogramming.
• For instance, a class that performs validation on incoming data may use a strategy pattern to select a validation algorithm based on the type of data, the source of the data, user choice, or other discriminating factors.