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0
votes
3answers
171 views

Drawback of using static method [duplicate]

For methods that never access instance variable or static variable and they act just like a function (name-spaced) and they are deterministic base on only the input arguments , I want to ask, are ...
1
vote
2answers
240 views

Is this a candidate for Singleton?

I have an external thermometer connected via USB that is controlled by my SW. Different parts of my system will use it but never at the same time (all in one thread). However, it is a single device ...
18
votes
3answers
1k views

Why is a private member accessible in a static method?

The following is pseudo code, I tried it in Java and PHP and both worked: class Test { private int a = 5; public static function do_test(){ var t = new Test(); t.a = 1; ...
0
votes
1answer
222 views

static or non-static, that is the question? [duplicate]

For comparisons / evaluations of objects of the same class(and other purposes), is it better to define a static or a non-static (is this called "dynamic" by chance?) function? Sample code: class ...
2
votes
1answer
308 views

Calling static method from instance of class

As a developer I am fan of static methods. Recently I come across difference between OOP languages about this static methods. All OOP language use static method to access any method without ...
12
votes
4answers
660 views

Is it a code smell if you are frequently creating an object just to call a method on it

I inherited a code base where there is a lot of code that goes something like this: SomeDataAdapter sda = new SomeDataAdapter(); sda.UpdateData(DataTable updateData); And then sda is never used ...
2
votes
3answers
570 views

Mocking static methods

Having recently returned from a Test Driven Development (TDD) course I had the following thought. While writing unit tests using Mockito we came up against of the problem of mocking static methods. ...
1
vote
3answers
116 views

Refactoring - Utility classes behavior under a common interface

I was suggested to put my question here, so I'm doing so ;) I need a common interface which represents some specific behavior: public interface Contract(){ public void methodA(); public void ...
1
vote
3answers
233 views

Is it good to create static method at Visual Studio refactoring?

There are various refactoring options in Visual Studio to use at the time of coding. When we extract and create a new method. Then Visual Studio decide whether the new method will be static or ...
13
votes
5answers
6k views

What is the difference between all-static-methods and applying a singleton pattern?

I am making a database to store information about the users of my website (I am using stuts2 and hence Java EE technology). For the database I'll be making a DBManager. Should I apply singleton ...
4
votes
5answers
476 views

Requring static class setter to be called before constructor, bad design?

I have a class, say Foo, and every instance of Foo will need and contain the same List object, myList. Since every class instance will share the same List Object, I thought it would be good to make ...
3
votes
2answers
426 views

Should I put utility methods inside a class?

I have been working on a library which contains a large set of functions. For the sake of simplicity, I am going to use just one set as an example. I am not sure which is the better way, in terms of ...
35
votes
9answers
10k views

Can't I just use all static methods?

What's the difference between the two UpdateSubject methods below? I felt using static methods is better if you just want to operate on the entities. In which situations should I go with non-static ...
13
votes
15answers
8k views

When do 'static functions' come into use?

OK, I've learned what a static function is, but I still don't see why they are more useful than private member functions. This might be kind of a newb-ish question here, but why not just replace all ...
1
vote
1answer
810 views

JavaScript static methods retrieval

I have been thinking about it and wanted some feedback, recently I thought about doing it like this: function foo(){ if ( !foo.prototype.statics ){ foo.prototype.statics = { // ...
0
votes
2answers
309 views

Factory-Class versus Static Class

I've got a little problem in choosing the best design. I have some (5 at the moment) image processing operations in my coe (Java). Every processing step independent from the other ones and consoists ...
0
votes
4answers
408 views

substitute for static inheritance

I currently have a number of classes (~20) that all do the same thing (abstractly), namely, generate an instance of a particular class from an xml file. The way that they use the content of the xml ...
2
votes
2answers
292 views

Static or non-static?

For example I have these two classes: First public class Example { public Example() { } public int ReturnSomething { return 1; } } Second public class Example ...
40
votes
8answers
16k views

Is static universally “evil” for unit testing and if so why does resharper recommend it?

I have found that there are only 3 ways to unit test (mock/stub) dependencies that are static in C#.NET: Moles TypeMock JustMock Given that two of these are not free and one has not hit release ...
-1
votes
4answers
676 views

Immutable vs mutable object as returned parameter for class method [closed]

There is a class method (static method) in which I create and build some object. And for filling that object, I create it as mutable object. My mutable object is a subclass of immutable object. So ...
3
votes
3answers
1k views

What is a static method compared to instance/class/private/public methods?

I'm learning programming in Objective-C and I can't understand what a static method is. I know what class/instance/private/public methods are. Can someone explain what it is using an example and ...
4
votes
1answer
391 views

How to implement syntax sugar in OO

The Problem I regularly find myself writing the same code over and over again. For example if I want a value from a nested array structure I end up writing something like this: $config = ...
1
vote
3answers
274 views

Using static in PHP

I have a few functions in PHP that read data from functions in a class readUsername(int userId){ $reader = getReader(); return $reader->getname(userId); } readUserAddress(){ $reader = ...
2
votes
3answers
480 views

Syntactic sugar in PHP with static functions

The dilemma I'm facing is: should I use static classes for the components of an application just to get nicer looking API? Example - the "normal" way: // example component class Cache{ abstract ...
5
votes
3answers
1k views

Static methods or static functions?

I was just reading http://stackoverflow.com/questions/155609/what-is-the-difference-between-a-method-and-a-function and all of a sudden, the thing came to my mind was the static methods. As static ...
3
votes
3answers
7k views

Static class vs Singleton class in C# [duplicate]

Possible Duplicate: What is the difference between all-static-methods and applying a singleton pattern? I need to make a decision for a project I'm working of whether to use static or ...
43
votes
6answers
6k views

How to deal with static utility classes when designing for testability

We are trying to design our system to be testable and in most parts developed using TDD. Currently we are trying to solve the following problem: In various places it is necessary for us to use static ...
2
votes
3answers
1k views

OO PHP static keyword, should I use it?

I'm writing script for fb and I have 3 objects that I'll be using through all classes. I'm wondering if there is any advantage in using the static keyword except I don't have to create an instance ...
6
votes
3answers
215 views

“static” as a semantic clue about statelessness?

this might be a little philosophical but I hope someone can help me find a good way to think about this. I've recently undertaken a refactoring of a medium sized project in Java to go back and add ...
6
votes
3answers
4k views

Do private static methods in C# hurt anything?

I created a private validation method for a certain validation that happens multiple times in my class (I can't store the validated data for various reasons). Now, ReSharper suggests that the function ...
-3
votes
2answers
893 views

Why don't inherited methods use child properties? (PHP)

I'm trying to get the code below to work in child classes. But it keeps failing because it is checking the basicDbClass rather than the child class. For those complaining and voting my question down ...
4
votes
4answers
870 views

Could implicit static methods cause problems?

This is a purely hypothetical question. Say I create a class method that contains no references to instance variables or other resources. For example (C#): protected string FormatColumn(string ...
2
votes
1answer
336 views

Is @staticmethod proliferation a code smell?

Consider a Python class with a number of @staticmethod methods and few instance methods. The static methods don't accept an instance of the defining class as parameters. Do you think that all these ...