interface-implementation

来源： https://stackoverflow.com/questions/47209963/c-sharp-diamond-inheritance-interface-implementation

问题 I am following a book namely ".NET Domain Driven Design with C#". Question is based on scenario as shown in Class Diagram below: Figure: http://screencast.com/t/a9UULJVW0 In this diagram, A) IRepository interface is implemented by (abstract base class) RepositoryBase whereas, B) IRepository interface is also extended by interface ICompanyRepository (ICompanyRepository : IRepository). C) ICompanyRepository is implemented by CompanyRepository which is derived from SQLRepositoryBase which is

问题 Ok, this is a question I'm asking, not as in demonstrating good coding practices (this actually could be considered a bad practice) but rather in regards to 'can' it be done at all. That said, in VB.NET you implement an interface like this... Sub SomeInterfaceMember() Implements ISomeInterface.SomeInterfaceMember End Sub while in C# you do it explicitly like this (which can only be called via the interface)... void ISomeInterface.SomeInterfaceMember(){} or more simply, implicitly like this

问题 I've tried to use the XPath 2.0 exp //span/string(.) in libxml2 , but it doesn't work. So, my question is: does libxml2 support XPath 2.0 or not? 回答1: As far as I know -- not. The prevailing majority of XPath 2.0 implementations are part of XSLT 2.0 processors or XQuery processors. 回答2: According to this 2007 email from the maintainer of libxml2, libxml2 does not, and will not, support XPath 2.0. 回答3: you might be interested in an XPath 2.0 extension to libxml2 - however, 2 caveats apply: it

问题 This question already has answers here : Class 'QueryParameterComparer' must implement Function Compare. (2 answers) Closed 4 years ago . I get the error: Class 'QueryParameterComparer' must implement 'Function Compare(x As QueryParameter, y As QueryParameter) As Integer' for interface 'System.Collections.Generic.IComparer(Of QueryParameter)'. On this class definition: Protected Class QueryParameterComparer Implements IComparer(Of QueryParameter) Public Function Compare(x As QueryParameter, y

问题 I have a base abstract class that also implements a particular interface. public interface IMovable<TEntity, T> where TEntity: class where T: struct { TEntity Move(IMover<T> moverProvider); } public abstract class Animal : IMovable<Animal, int> { ... public virtual Animal Move(IMover<int> moverProvider) { // performs movement using provided mover } } Then I have inherited classes some of which have to override interface implementation methods of the base class. public class Snake : Animal { .

问题 We have to share our code base with a partner for developing, but we don't want to reveal the implementation of some services. Say we have an interface FooService and its implementation FooServiceImpl . public interface FooService { void doSomething(); } @Service public class FooServiceImpl implements FooService { @Override public String doSomething(); { ... } } Many other classes autowire this service in and call doSomething(). For example: @Service public class BarServiceImpl implements

问题 Let's say I have the following two class/interface definitions: public abstract class FooClass { public abstract void doFoo(); } and public interface BarInterface { public void doBar(); } If I want to make an anonymous inner class that extends/implements both, do I need to do this: public abstract class BothClass extends FooClass implements BarInterface {} ... new BothClass() { public void doFoo() { System.out.println("Fooooooooo!!!!"); } public void doBar() { System.out.println("Baaaaaaaar!!

问题 Is there a way in PhpStorm to automatically generate the empty methods that are required by the interface the given class is implementing? Say we have an Interface with 3 methods - when defining the new class that implements this interface - some option to auto-generate containers for all required methods. 回答1: From my comment: You could try ALT + ENTER . This normaly shows up a small "dialog" to autogenerate phpdoc, functions, etc. 回答2: Sure, you can. There are 3 ways to do it : Press Ctrl +

问题 As it currently stands, this question is not a good fit for our Q&A format. We expect answers to be supported by facts, references, or expertise, but this question will likely solicit debate, arguments, polling, or extended discussion. If you feel that this question can be improved and possibly reopened, visit the help center for guidance. Closed 7 years ago . I know and understand the value of interfaces in Java. You code to the interface, and then you can change your implementations without