Alternative to singleton for unique resources

Posted by user1320881 on Stack Overflow See other posts from Stack Overflow or by user1320881
Published on 2012-04-15T22:49:13Z Indexed on 2012/04/15 23:30 UTC
Read the original article Hit count: 170

Filed under:

design-patterns

|

singleton

|

global-variables

I keep reading over and over again that one should avoid using singletons for various reasons. I'm wondering how to correctly handle a situation where a class represents a unique system resource. For example, a AudioOutput class using SDL. Since SDL_OpenAudio can only be open once at a time it makes no sense having more then one object of this type and it seems to me preventing accidentally making more then one object would actually be good.

Just wondering what experienced programmers think about this, am i missing another option ?

© Stack Overflow or respective owner

Related posts about design-patterns

Should universities put more emphasis on teaching their students about design patterns?

as seen on Programmers - Search for 'Programmers'
While I've heard about design patterns being mentioned in a few courses at uni, I know of only a single course which actually teaches design patterns. In almost all other areas (algorithms, parallelism, architecture, dynamic languages, paradigms, etc), there are several, often a basic course and an… >>> More
Podcasts on GoF design patterns

as seen on Stack Overflow - Search for 'Stack Overflow'
Anyone know of a good podcast on design patterns? >>> More
How often are design patterns used in the workplace using PHP

as seen on Stack Overflow - Search for 'Stack Overflow'
Hey everyone, I read a book awhile back called PHP Design Patterns and Practice, and ever since then I have been using design patterns whenever I think they are needed. However it just occurred to me that maybe most companies do not use design patterns very often for PHP, or at all. What I was wondering… >>> More
Who benefits from the use of Design Patterns?

as seen on DotNetBlocks - Search for 'DotNetBlocks'
Who benefits from the use of design patterns is like asking who benefits from clean air or a good education. All of the stakeholders of a project benefit from the use of design patterns. Project Sponsor Project sponsors benefit from the use of design patterns because they promote reduced development… >>> More
Architect: "Collaborating on Design Patterns"

as seen on Oracle Technology Network - Search for 'Oracle Technology Network'
It takes an architect community to raise a collection of SOA design patterns. >>> More

Related posts about singleton

Singleton design pattern vs Singleton beans in Spring container

as seen on Stack Overflow - Search for 'Stack Overflow'
As we all know we have beans as singleton by default in Spring container and if we have a web application based on Spring framework then in that case do we really need to implement Singleton design pattern to hold global data rather than just creating a bean through spring. Please bear with me if… >>> More
Java Singleton Pattern

as seen on Stack Overflow - Search for 'Stack Overflow'
I'm used the Singleton Design Pattern public class Singleton { private static final Singleton INSTANCE = new Singleton(); // Private constructor prevents instantiation from other classes private Singleton() {} public static Singleton getInstance() { return INSTANCE; } } My… >>> More
Static vs Singleton in C# (Difference between Singleton and Static)

as seen on ASP.net Weblogs - Search for 'ASP.net Weblogs'
Recently I have came across a question what is the difference between Static and Singleton classes. So I thought it will be a good idea to share blog post about it.Difference between Static and Singleton classes:A singleton classes allowed to create a only single instance or particular class. That… >>> More
Difference between Singleton implemention using pointer and using static object

as seen on Stack Overflow - Search for 'Stack Overflow'
EDIT: Sorry my question was not clear, why do books/articles prefer implementation#1 over implementation#2? What is the actual advantage of using pointer in implementation of Singleton class vs using a static object? Why do most books prefer this class Singleton { private: static Singleton… >>> More
Trying to change variables in a singleton using a method

as seen on Stack Overflow - Search for 'Stack Overflow'
I am trying to use a singleton to store variables that will be used across multiple view controllers. I need to be able to get the variables and also set them. How do I call a method in a singleton to change the variables stored in the singleton. total+=1079; [var setTotal:total]; where var is… >>> More