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Difference between Repository and Service Layer?
...ontext();
return CreateObjectQuery<Type>().Where(t => t.ID == param).First();
to get a single item from database, you use repository interface
public interface IRepository<T>
{
IQueryable<T> List();
bool Create(T item);
bool Delete(int id);
T Get(int id);
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How to implement has_many :through relationships with Mongoid and mongodb?
Using this modified example from the Rails guides , how does one model a relational "has_many :through" association using mongoid?
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Covariance, Invariance and Contravariance explained in plain English?
Today, I read some articles about Covariance, Contravariance (and Invariance) in Java. I read the English and German Wikipedia article, and some other blog posts and articles from IBM.
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How to create a custom attribute in C#
I have tried lots of times but still I am not able to understand the usage of custom attributes (I have already gone through lots of links).
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Differences between ExpandoObject, DynamicObject and dynamic
What are the differences between System.Dynamic.ExpandoObject , System.Dynamic.DynamicObject and dynamic ?
4 Answers
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Java 8: performance of Streams vs Collections
I'm new to Java 8. I still don't know the API in depth, but I've made a small informal benchmark to compare the performance of the new Streams API vs the good old Collections.
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Node.js / Express.js - How does app.router work?
... I think I should explain at least what I think happens when working with middleware. To use middleware, the function to use is app.use() . When the middleware is being executed, it will either call the next middleware by using next() or make it so no more middleware get called. That means that ...
.NET Global exception handler in console application
...n: I want to define a global exception handler for unhandled exceptions in my console application. In asp.net, one can define one in global.asax, and in windows applications /services, one can define as below
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Change one value based on another value in pandas
I'm trying to reprogram my Stata code into Python for speed improvements, and I was pointed in the direction of PANDAS. I am, however, having a hard time wrapping my head around how to process the data.
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What is difference between Collection.stream().forEach() and Collection.forEach()?
I understand that with .stream() , I can use chain operations like .filter() or use parallel stream. But what is difference between them if I need to execute small operations (for example, printing the elements of the list)?
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