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What is the difference between strategy and template method?
The difference between the two is that while the strategy pattern allows different implementations to use completely different ways of the achieving the desired outcome, the template method pattern specifies an overarching algorithm (the “template” method) which is be used to achieve the result — the only choice left …
Which implements the algorithm using the strategy interface?
The Strategy1 and Strategy2 classes implement the Strategy interface, that is, implement (encapsulate) an algorithm. The UML sequence diagram shows the run-time interactions: The Context object delegates an algorithm to different Strategy objects.
What is the difference between a design pattern and a template?
As nouns the difference between pattern and template is that pattern is model, example while template is a physical object whose shape is used as a guide to make other objects. As verbs the difference between pattern and template is that pattern is to apply a pattern while template is to set up or mark off using a.
What’s the difference between a template and a strategy?
Both are behavioral patterns and, as such, are consumed in much the same way by clients. Typically strategies have a single public method — the execute () method, whereas templates may define a set of public methods as well as a set of supporting private primitives that subclasses must implement.
How are template methods used in design patterns?
Template method is the basis for a bunch of other patterns, such as Strategy and State. Essentially, the Strategy interface contains one or more template methods, each requiring all objects implementing a strategy to have (at least) something like a doAction () method.
What is the difference between the template method and the concrete method?
The main difference between the two is when the concrete algorithm is chosen. With the Template method pattern this happens at compile-time by subclassing the template. Each subclass provides a different concrete algorithm by implementing the template’s abstract methods.
What is the difference between the template method and the boilerplate?
In Strategy pattern, generally entire behaviour of the class is represented in terms of an interface, on the other hand, Template method is used for reducing code duplication and the boilerplate code is defined in base framework or abstract class.