interface

问题 I am trying to get familiar with the Kinect 2.0 SDK in c++ in order to create my own program. However, I am getting stuck with understanding some of the code. First of all, as I tried to trace back different structure declarations, I found that all of the functions are virtual and I cannot find where they are actually defined. For example, If you are in visual studio, and click on 'IBody' and open declaration, it brings you to an interface where everything is virtual. How can I figure out

问题 I am trying out the FluentNHibernate AutoPersistenceModel for the first time. It was very simple to get a basic example working but I am having a problem making it fit with how I work. I normally work to interfaces so that my entities all implement an interface and reference all related entities by their interface, not their concrete type. Given the following classes: public Interface IFoo { } public Interface IBar { IFoo Foo { get; set; } } public Class Foo : IFoo { } public Class Bar : IBar

问题 I have a class called X that implements multiple (e.g. 3) interfaces, call them A, B and C. I create another interface AB that extends interface A and B. How can I use reflection to create an instance of X that is assignable to interface AB? I keep getting ClassCast exceptions with this code: package test.messages; public interface A { void methodA(); } package test.messages; public interface B { void methodB(); } package test.messages; public interface C { void methodC(); } package test

问题 what is the meaning of this interfaces? even if we implement an interface on a class, we have to declare it's functionality again and again each time we implement it on a different class, so what is the reason of interfaces exist on as3 or any other languages which has interface. Thank you 回答1: I basically agree with the answers posted so far, just had a bit to add. First to answer the easy part, yes other languages have interfaces. Java comes to mind immediately but I'm pretty sure all OOP

问题 Closed. This question is off-topic. It is not currently accepting answers. Want to improve this question? Update the question so it's on-topic for Stack Overflow. Closed 5 years ago . I've read these two pages http://martinfowler.com/ieeeSoftware/published.pdf http://lambda-the-ultimate.org/node/1400 but I still don't get the difference between a published and public method. An example in Java would be helpful. Thanks in advance. 回答1: public Public interfaces written in Java: interface

问题 I'm using this exe com server: https://cfx.svn.codeplex.com/svn/Visual%20Studio%202008/CSExeCOMServer/ExeCOMServer.cs my prog is a com app my com method which take another com object is void Init(AppsScriptRunningContext rc); in this method I try to read out an property and get this error Unable to cast COM object of type 'AppsScriptLib.AppsScriptRunningContextClass' to interface type 'AppsScriptLib.IAppsScriptRunningContext'. This operation failed because the QueryInterface call on the COM

问题 I have a storage class in Typescript, that implements Storage interface, say MyStorage . But it has too many methods, so I want to use it instead of MyStorage.getCandy - MyStorage.Candies.getCandies . How can the structure possibly look? I assume, something like export class MyStorage implements Storage { public constructor {} ... Candies: { getCandies() { ... } } Balls: { ... } } 回答1: You should consider whether such a huge object makes sense. Classes that do everything are generally a bad

问题 I want to create interface in cpp such that is any class implement that class then that class must implement parent class's functions. if all functions are not implemented then it must shows error. class parent { // interface class public : virtual void display(); } class base : public parent { void display(); // this method must be implemented in this class } please help me for this type of inheritance in c++. 回答1: Use a pure virtual member function: virtual void display() = 0; This makes

问题 I have to use an interface in my REST web service. Here is the Interface Specs.java : @XmlJavaTypeAdapter(MyAdapter.class) public interface Specs { public BaseProperties getBaseProps(); public void setBaseProps(BaseProperties baseProps); } MyAdapter.java : public class MyAdapter extends XmlAdapter<Object,Object> { public Object unmarshal(Object v) { return v; } public Object marshal(Object v) { return v; } } RegSpecs.java @XmlType public class RegSpecs implements Specs{ private BaseProperties

问题 I'm reading up on DataSource, here, and trying to implement it in my own little project by using a simple file as my "data source". I've created a class that is pretty simple at the moment... public class QueueData implements DataSource { ... } though the reason it is simple is because I haven't been able to find a resource that explains how the implemented methods should work. Everyone seems to just list the initialization of a context and a magical getConnection() call, like so. Context ctx