Is it possible to specify a static function in a Kotlin interface?

Basically, nothing in a companion object can be abstract or open (and thus be overridden), and there’s no way to require the implementations’ companion objects to have a method or to define/require a constructor in an interface. A possible solution for you is to separate these two functions into two interfaces: interface Serializable<ToType> { fun … Read more

The difference between liskov substitution principle and interface segregation principle

LSP: The subtype must honor the contracts it promises. ISP: The caller shouldn’t depend on more of the base type’s interface than it needs. Where they fit: If you apply the ISP, you use only a slice of the receiver’s full interface. But according to LSP, the receiver must still honor that slice. If you … Read more

Why shared libraries between microservices are bad? [closed]

The evils of too much coupling between services are far worse than the problems caused by code duplication The author is very unspecific when he uses the generic word “coupling”. I would agree with certain types of coupling being a strict no-no (like sharing databases or using internal interfaces). However the use of common libraries … Read more

Why middleware in ASP.NET Core requires specific semantics, but not an interface?

The Invoke method is flexible and you can ask for additional parameters. ASP.NET will inject the additional parameters using the application’s service configuration. public async Task Invoke(HttpContext ctx, IHostingEnvironment host, ISomethingElse service) { // … } C# interface definitions can’t provide this flexibility in a nice way.

Convert arbitrary Golang interface to byte array

Other problems in my code led me away from the gob package earlier, turns out it was the proper way as @nvcnvn suggested. Relevant code on how to solve this issue below: package bloom import ( “encoding/gob” “bytes” ) func GetBytes(key interface{}) ([]byte, error) { var buf bytes.Buffer enc := gob.NewEncoder(&buf) err := enc.Encode(key) if … Read more

Dependency Injection & using interfaces?

Letting your application components (the classes that contain the application logic) implement an interface is important, since this promotes the concept of: Program to an interface, not an implementation. This is effectively the Dependency Inversion Principle (DIP). Doing so allows you to replace, intercept or decorate dependencies without the need to change consumers of such … Read more

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