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Published on 2010-04-24T12:39:40Z
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2010/04/24
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Singletons are so often said to be a bad design choice, so how should you design an application when you want to avoid them?
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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…
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Anyone know of a good podcast on design patterns?
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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…
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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…
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It takes an architect community to raise a collection of SOA design
patterns.
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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…
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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…
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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…
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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…
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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…
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