dependency-inversion

Dependency Inversion Principle and where to put the interfaces

由 半世苍凉 提交于 2019-12-06 07:10:44
问题 I am building a simple MVC application in asp.net. I want to follow the dependency inversion principle and I don't know if I am doing it right. I am currently working on the Authentication system. I have an AccountController which uses the Authenticator service inside. The Authenticator service is injected into the controller by constructor injection. public class AccountController : Controller { private IAuthenticator _authenticator; public AccountController(IAuthenticator authenticator) {

Does dependency inversion principle mean that I have to create an interface for every module?

由 流过昼夜 提交于 2019-12-06 02:56:35
问题 If I want my code to follow SOLID principles, specifically the dependency inversion principle, does that mean that I have to create an interface (abstraction) for every module, even if it has only one implementation ? In my opinion, and according to these posts: http://josdejong.com/blog/2015/01/06/code-reuse/ http://blog.ploeh.dk/2010/12/02/Interfacesarenotabstractions/ creating an "abstraction" for every module is a code clutter and violates the YAGNI principle. My rule of thumb is: do not

Dependency Inversion Principle and where to put the interfaces

由 不打扰是莪最后的温柔 提交于 2019-12-04 12:49:53
I am building a simple MVC application in asp.net. I want to follow the dependency inversion principle and I don't know if I am doing it right. I am currently working on the Authentication system. I have an AccountController which uses the Authenticator service inside. The Authenticator service is injected into the controller by constructor injection. public class AccountController : Controller { private IAuthenticator _authenticator; public AccountController(IAuthenticator authenticator) { _authenticator = authenticator; } // // POST: /Account/Login [HttpPost] public ActionResult Login

Multiple inheritance for R6 classes

由 旧城冷巷雨未停 提交于 2019-12-03 08:24:24
问题 Actual question What are my options to workaround the fact that R6 does not support multiple inheritance? Disclaimer I know that R is primarily a functional language. However, it does also have very powerful object-orientation built in. Plus: I don't see what's wrong with mimicking OOD principles/behavior when you know you're prototyping for an object-oriented language such as C#, Java, etc. your prototypes of apps need to be self-sufficient ("full stack" including DB-backends, business logic

Multiple inheritance for R6 classes

由 半世苍凉 提交于 2019-12-02 22:24:10
Actual question What are my options to workaround the fact that R6 does not support multiple inheritance ? Disclaimer I know that R is primarily a functional language. However, it does also have very powerful object-orientation built in. Plus: I don't see what's wrong with mimicking OOD principles/behavior when you know you're prototyping for an object-oriented language such as C#, Java, etc. your prototypes of apps need to be self-sufficient ("full stack" including DB-backends, business logic and frontends/UI) you have such great "prototyping technology" like R6 and shiny at your disposal

Javascript dependency injection & DIP in node: require vs constructor injection

由 巧了我就是萌 提交于 2019-11-30 15:51:41
问题 I'm new to NodeJs development coming from the .NET world i'm searching the web for best practices regrading DI / DIP in Javascript In .NET i would declare my dependencies at the constructor whereas in javascript i see a common pattern is to declare dependencies in the module level via a require statement. for me it looks like that when i use require i'm coupled to a specific file while using a constructor to receive my dependency is more flexible. What would you recommend doing as a best

What is the dependency inversion principle and why is it important?

由 雨燕双飞 提交于 2019-11-26 23:15:04
What is the dependency inversion principle and why is it important? Carl Seleborg Check this document out: The Dependency Inversion Principle . It basically says: High level modules should not depend upon low-level modules. Both should depend upon abstractions. Abstractions should never depend upon details. Details should depend upon abstractions. As to why it is important, in short: changes are risky, and by depending on a concept instead of on an implementation, you reduce the need for change at call sites. Effectively, the DIP reduces coupling between different pieces of code. The idea is

What is the dependency inversion principle and why is it important?

由 杀马特。学长 韩版系。学妹 提交于 2019-11-26 08:39:16
问题 What is the dependency inversion principle and why is it important? 回答1: Check this document out: The Dependency Inversion Principle. It basically says: High level modules should not depend upon low-level modules. Both should depend upon abstractions. Abstractions should never depend upon details. Details should depend upon abstractions. As to why it is important, in short: changes are risky, and by depending on a concept instead of on an implementation, you reduce the need for change at call
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