Generic programming is a style of computer programming in which algorithms are written in terms of to-be-specified-later types that are then instantiated when needed for specific types provided as parameters.

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Convert Extension methods to generic methods

I was looking at some Linq queries with multiple join statements. I was thinking that they could be cleaned up using extension methods that hide away the join / where statements. For example: ...
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295 views

Instantiating a run-time implementation of an interface

Below is my code that was written for the following task (based on an SO question): Given a Java Collection (of N elements) create an ...
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4answers
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Reusability vs Simplicity

I have a small game I'm working on with a set of interfaces: IHavePosition: public interface IHavePosition<T> { T Position { get; set; } } ICanMove: ...
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2answers
122 views

Suggestions on converting these classes to a single generic class

I have two classes that do that same thing with different types. I was thinking of using generics (but I am open to all options). QueryPermissions and the WebQueryObjects come from an external dll ...
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Generic deque implementation

I implemented a generic deque data structure. Please, review this implementation. Deque.java: ...
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98 views

Many interfaces and lots of inheritance vs few interfaces and less inheritance?

I have a Visual Studio Solution which has a bunch of Projects in it. One of these projects is called "Services" and is basically the junction point between all remaining projects. When I built it ...
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Do I need Generics for these node and tree classes?

I want to implement KD tree. I have defined class Node as follows: ...
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72 views

Message Based Communication Design

I'm trying to design an API.NET for some communication purposes with Testing Equipment and I cannot figure out a proper way for designing the architecture. Basically, we have different (physical) ...
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3answers
158 views

Refactor C# Linq code to reduce duplication

I currently have the below code: ...
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2answers
169 views

C++(11/14) intercalate implementation

I wrote a simple generic intercalate function (that should be semantically equivalent to the Haskell intercalate). ...
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1answer
77 views

Is this a good way to deal with this tricky generic situation?

I have a project which should be thought of split into two layers: an IO layer which consists of sensors (input) and effectors (output), and a core layer which contains logic for determining which ...
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221 views

Static Data Helper for an Oracle Backend

What I would like to do is have a method call like: ...
5
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1answer
71 views

Generic property with AOP-functionality in Java

After playing around with Java 8 and Generics for some time, I came across an idea while reading some posts about Apple's new programming language Swift. Swift has AOP-like methods for properties ...
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0answers
43 views

Feedback for a mostly auto-generated generic data layer

I'm trying to make a reusable data layer that is mostly generated from a database via T4 templates. On top of this data layer, I'd like to have WebAPI endpoints for each repository, with most of the ...
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1answer
48 views

Generic util method to convert in single map from list of array of Object generally result of JPQL/ hibernate

I have designed a generic method to convert list of array of Objects to result into single map. This is working fine, but I want to check weather a key object is valid key (whether it is overriding ...
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3answers
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Would ignoring generic types to provide default behavior when client uses my default constructor confuse people?

I'm wondering if providing default behavior is ever worth the confusion caused by ignoring generic type passed in. Another question brought up this issue: ...
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1answer
42 views

Having children call parent's public events with data generated from a protected event

I don't know that my title describes the code I want reviewed. Hopefully the code is explanatory. I have an abstract parent class with two children. The parent listens to some hardware notifications ...
2
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1answer
309 views

Generic, thread-safe MemoryCache manager for C#

Using this question as a base, and using some of the advice in the answers, I wanted to build out something that would be generic, thread-safe, and easy to use for at least one current and several ...
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Generic radix sort

This started out with my answer to Radix Sort on an Array of Strings?. Since I intend to write a generic radix sort for my own purposes anyway, I continued a little bit, and here is a version tested ...
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1answer
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Is there a simpler way to create this Inheritance structure for overriding an internal Generic Type?

I have some code below which is designed for the following purposes: Implement a cache structure which stores cached elements, as well as a method for reloading those elements. Ensure the new ...
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242 views

Generic ArrayList

Can anyone recommend improvements to the compress() method? ...
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354 views

Recursive Fibonacci with Generic delegates

Here is a fast recursive Fibonacci-like for loop. How can it be more readable, and is it possible remove TArgs? ...
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65 views

Pattern for storing object of varying type

I have a situation where I need to store fields of differing types of some data structures along with some similar metadata (The application takes data from one of many sources, some data possibly ...
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108 views

Genericizing PropertyValues

This should be the last iteration for this code. Question 1 Does this approach make sense or am I heading down the wrong path? Question 2 The only thing I can see to make this better is to ...
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1answer
115 views

Session state wrapper, extending an existing application

I'm adding additional functionality to an existing MVC .net application, and to help prevent or at least reduce repeated reads to the dB I'm dumping a few custom entities in session. I'm limiting what ...
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2answers
1k views

Empty Interface usage - is this a code smell?

I've recently made a set of interfaces/classes to work with converting a spreadsheet into an object but I utilise an empty interface in my design: So first off I have my interface which defines what ...
7
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1answer
126 views

Model simulation using Java annotations

A couple of days ago I posted my code that models systems made up of moving parts. I got several great tips and ideas and here is my latest version. My actions are now methods annotated with @Action ...
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212 views

Game passive skill system

I'm trying to create some easily accessible database of different skills. General idea is that every skill should do something different and be able to act on different things (ex. one skill which ...
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1answer
179 views

Delegate that selects a writable property on a generic

In the following contrived example, I have a collection of PropertyManagers that each contains selector and assigner delegates to read from and write to a property ...
6
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1answer
69 views

Monadic Immutable Linked List in the Least Functional Language Evar

I've written a List monad as an example for a related question. This is a rather frustrating experience as I wanted to use Java, which (as of Java 7) still lacks lambda expressions and lacks ...
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A monad in Java (FriendSpace and People)

After asking a similar question on Stack Overflow, I'm picking up on the answer there to improve my monad. I'm not trying to solve the general case, just come up with one to see how it works. If I'm ...
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Is this C# 'hack' a bad idea?

As C# doesn't have generic specialisation like C++ template specialisation and I wanted a way to be able to do it, I came up with a little hack that goes a bit like this: ...
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Factory for classes unknown at compile time

I have a class called Machine. It contains a list of parts and a list of actions. The list of parts will contain instances of the ...
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2answers
93 views

Abstract Factory Experiment

While I should probably be using Dependency Injection via Ninject or a similar project, I have been attempting to implement an abstract factory design that would provide me with the following easy to ...
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1answer
194 views

Cache wrapper - Generics vs Dynamic

I've implemented a common wrapper pattern I've seen for the .NET cache class using generics as follows: ...
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1answer
294 views

A genric extension method to filter Linq-EF queries

I have various types of EF entities, all of them have a navigation property called "Employee". When generating reports the user will have the option to filter the report according to the different ...
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1answer
181 views

Mapping from multiple sources to destination using JMapper

I am using JMapper to map from multiple sources to a destination class. Could you review it and let me know if the code looks OK to you? Please suggest any changes that I can make to improve it. ...
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3answers
88 views

Forcing type-safe IDs for use with Collections and Maps

Introduction I have a hierarchically nested tree class (like SampleFolder, s.b.) that I want to serialize. The problem arises with the collection of sub items ...
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1answer
213 views

Genetic C++ programming with Brainfuck

This was a project I worked on for fun that basically uses a genetic algorithm to produce simple Brainfuck programs that output whatever the user specifies. I was just was hoping for criticism of the ...
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1answer
478 views

PriorityQueue<T> Implementation — Flaws, Thoughts, General Feedback

I have been looking desperately for some more experienced .NET (C#) software developers to take a look at my code, and provide me with some good ol' honest feedback and/or criticism about it. It only ...
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1answer
100 views

VARIANT structure deserialization code organization

In my project i work with COM object via System.Reflection. COM object returns pointer on structure VARIANT, that i cast as ...
4
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1answer
113 views

Generic 'temporary instance' class

I've been reading about WeakPointer and WeakPointer<T> today, and it looks very useful. Rather than just using it as-is ...
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1answer
161 views

Java reflection: Inject data generically and safely

I have become interested in reflection and I wrote a class to wrap an Object so that I can access its private instance fields. The code works great. I do not need to wory about the exceptions in the ...
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253 views

Add item to an Array 2D using LINQ

I've wrote a generic function to add an item to an Array 2D This is what I have: ...
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99 views

Covariance in generic collections

I have a some classes and interface ...
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1answer
265 views

Opening a list of URLs and splitting the queries into different files

I recently made a program in Python to open a list of URLs and split the queries into different files. I want to make this code more generic and simple. I am open to suggestions. ...
3
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1answer
58 views

How can I improve my Java MethodPointer?

This was just an experiment to see if I could replicate something like C++ function pointers in Java. Basically, the idea was to have an object which represented a method call, and when you call ...
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1answer
725 views

Using generic methods for basic crud operations

Regarding re-usability, is this OK? What might go wrong? What would be a better design? Performance-related issues and any other comments are welcome. ...
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385 views

Binding and iterating a database table to a List<T> in C#

I would like to iterate through the records of a database table using a C# List of my custom class. Is this the most performant way to handle this? (Simplified for ...
3
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1answer
46 views

Refactoring my windowsFormApp code

I have around 150 lines of code that I managed to optimize. But, because my two methods and the six if-statements almost are identical, could there be room for improvement? Maybe it could be done ...