The static-methods tag has no usage guidance.
4
votes
3answers
381 views
What problems might arise if I didn't make a method static when I could?
I have a stateless method that takes an input, and based on that input returns an output. This method has no state so in theory it could be made static.
But let's say I don't do this. What problems ...
0
votes
1answer
44 views
Using static methods in layered architecture
In layered architecture does it matter where static methods go? Or is it the architect deciding this? For example can the DAL be static to cache records and perform smart data retrieval at the ...
8
votes
4answers
2k views
Why would passing objects through static methods be advantageous?
Why would there be an advantage to use a static method and pass the reference to an object as a parameter rather than calling the method on an object?
To clarify what I mean, consider the following ...
5
votes
1answer
433 views
Are we abusing static methods?
A couple of months ago I started working in a new project, and when going through the code it stroke me the amount of static methods used. Not only utility methods as ...
-2
votes
4answers
156 views
Why do we add instance methods to classes? [closed]
Rewrite of the Question: Is there a technical reason why we are not using static methods instead of instance methods.
Technical reasons are for example: Performance or added type-safety.
I reason ...
5
votes
4answers
643 views
Does making a method static save memory on a class you'll have many instances of?
In response to Aaronaught's response to the question at:
Can't I just use all static methods?
Isn't less memory used for a static method? I am under the impression that each object instance carries ...
7
votes
1answer
207 views
Is a large static initializer a code smell?
I am extending SimpleExpandableListAdapter in Android. I don't think Android's adapter is implemented very well, in that its constructors have a large number of rather complicated arguments and it has ...
2
votes
2answers
158 views
Create a globally visible method for an API
I'm trying to create a Java API that I will use in other projects.
I understand that if I create new classes I can make objects in the other projects that have those classes. But what I want right ...
1
vote
1answer
65 views
When should I use static functions and when should I use non-static ones? [closed]
Sometimes, when I'm programming, I have to decide between adding a static method to a class that accepts an instance (or more) of that class or adding a non-static method. Here's an example:
Static
...
1
vote
3answers
158 views
Dependency inversion without static methods?
It's clear that the dependency inversion principle and the use of interfaces makes software components less coupled and promotes maintainability. On the other hand, these principles make using static ...
1
vote
2answers
343 views
Using static classes to define methods for handling POCO class objects
I am pretty new to the OOP paradigm and for this current project of mine, I need to design and develop a web application backend in .NET MVC using C#.
A friend of mine told me that the class objects ...
2
votes
1answer
278 views
Static properties and implicit “self” property in structures and enumerations vs classes in Swift
I am currently reading the Swift language documentation and came across these sentences in the chapter about methods:
Similarly, type methods on structures and enumerations can access
static ...
-1
votes
4answers
297 views
Is static going to make any difference in this code snippet
I have been to an interview and was asked this question - is there any difference adding or removing the static keyword in these classes?
I know what static means but my understanding of this point ...
4
votes
1answer
397 views
How can I use the “Non-Member Functions Improve Encapsulation” pattern from C#?
In 2000, Scott Meyers argued that non-member functions improve encapsulation. In C++, a non-member function is a C-style global function:
...
3
votes
2answers
151 views
Can a class method be accessed both in an instance and statically?
I am relatively new to class design and I have a task that I'm not sure how best to complete, or whether my idea in general is a code smell.
I'm developing a RPG where people can own monsters, so ...
1
vote
2answers
416 views
Is using multiple static classes with maximum one public method is a good idea
I'm writing a structural detailing (CAD) software for concrete buildings in C#. I have defined like hundreds of static classes each with one public method and if needed some private methods. Each one ...
1
vote
2answers
463 views
Programming against interfaces in Java
Supposing I have an interface Foo and a given implementation FooImpl.
public class FooImpl implements Foo
If I want to define a new operation on this class that depends on the particular ...
0
votes
1answer
187 views
Static and not-static: programmer quantum theory
Let me illustrate using the PHP language. The discussion here is, how should I do exactly to solve this problem in a clear and unambiguous mode.
Imagine that I have a class called Path. This class is ...
1
vote
1answer
2k views
Why overriding a static method does not result in polymorphism in java
Many say that we can not override a static methods.
But we can override a static method.
The question is, when we override a static method why it does not result in polymorphism ?
1
vote
1answer
382 views
Static methods vs Interface implementation
Here is my problem:
I stared to create an e-commerce web site info collector.
So I created a parser for each site.
The parser class is stateless.
I have got methods like:
getItemPrice(WebElement ...
0
votes
3answers
521 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
4answers
399 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 ...
22
votes
3answers
4k 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
268 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
7k 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 ...
13
votes
7answers
1k 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
4answers
6k 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
218 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 ...
2
votes
3answers
638 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 ...
4
votes
5answers
577 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 ...
4
votes
2answers
1k 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 ...
0
votes
2answers
352 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
673 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
404 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
...
2
votes
1answer
1k 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 = {
// ...
-1
votes
4answers
1k 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
3k 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
487 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 = ...
2
votes
3answers
3k 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 ...
8
votes
3answers
235 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 ...
2
votes
3answers
711 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 ...
4
votes
4answers
1k 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 ...
1
vote
3answers
302 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 = ...
46
votes
7answers
10k 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 ...
4
votes
3answers
10k 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 ...
8
votes
6answers
913 views
Static functions vs classes
Let's say that I want to build some utility functions to do some basic maths with the BigDecimals, for example I want to have a function that computes the average of a List<BigDecimal>.
What is ...
15
votes
15answers
20k 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 ...
3
votes
1answer
619 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 ...
8
votes
3answers
6k 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 ...
44
votes
10answers
21k 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 ...
