Questions tagged [strategy-pattern]

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3
votes
3answers
170 views

How to use strategy pattern more effectively?

The problem is the following: I have to download a set of JSON files and convert them to a certain format. There are 5 output formats (Let's call them A, B, C, D, E) and all of the downloaded json ...
2
votes
1answer
77 views

What's the difference between Strategy Pattern and IoC

In both the Strategy Pattern and in Inversion of Control you can exchange parts of an object that allows scalability and easy-to-exchange parts. I am referring to this and this Both use an interface ...
10
votes
5answers
2k views

Can we completely replace inheritance using strategy pattern and dependency injection?

For example: var duckBehaviors = new Duckbehavior(); duckBehaviors.quackBehavior = new Quack(); duckBehaviors.flyBehavior = new FlyWithWings(); Duck mallardDuck = new Duck(DuckTypes.MallardDuck, ...
2
votes
2answers
197 views

Strategy pattern and different implementation

I am still learning Design Patterns and I have a situation in my hand. I am developing a simple employee management Python program. An employee can be a Developer, Senior Developer, Lead Developer, ...
2
votes
2answers
235 views

Strategy/domain object responsibilities

Assume we are in the world of car rental application :) Let's say that I have 3 types of cars with 2 categories of price: Car type Price category ------------------------------ Sport ...
3
votes
2answers
704 views

DDD - delegate business rule of domain object to external service

Situation: I am implementing DDD in my first project and I would like to clarify how to correctly implement strategy pattern (in my case check if API token is active). This is a business rule of ...
2
votes
2answers
229 views

How to implement Strategy pattern for combined behaviours

Strategy pattern solves the necessity of applying a certain algorithm/behaviour depending on the object's type itself. So you can iterate over a bunch of similar objects and call the same function ...
1
vote
3answers
213 views

Strategy Pattern and inheriting boilerplate functionality

I've read that when using the Strategy Pattern, you should stick to composition rather than inheritance. But does this mean that any inheritance at all is bad practice? If there is functionality to be ...
1
vote
2answers
1k views

Implementing strategy pattern via configuration

In my current problem domain, a number of problems seem to lend themselves quite well to the strategy pattern. I have a common, high-level process - let's say it's a sales process - and regardless of ...
2
votes
1answer
999 views

Does my use of the strategy pattern violate the fundamental MVC pattern in iOS?

I'm about to use the 'strategy' pattern in my iOS app, but feel like my approach violates the somehow fundamental MVC pattern. My app is displaying visual "stories", and a Story consists (i.e. has @...