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In object-oriented programming, the factory method pattern is a design pattern that uses factory methods to deal with the problem of creating objects without having to specify their exact classes. Rather than by calling a constructor , this is accomplished by invoking a factory method to create an object.
UML class diagram. The abstract factory pattern in software engineering is a design pattern that provides a way to create families of related objects without imposing their concrete classes, by encapsulating a group of individual factories that have a common theme without specifying their concrete classes. [1]
For example, several GoF patterns, like the Factory method pattern, the Builder or even the Singleton are implementations of this concept. The Abstract factory pattern instead is a method to build collections of factories. In some design patterns, a factory object has a method for every kind of object it can create
Some examples of creational design patterns include: Abstract Factory pattern: a class requests the objects it requires from a factory object instead of creating the objects directly; Factory method pattern: centralize creation of an object of a specific type choosing one of several implementations
In a software design pattern view, lazy initialization is often used together with a factory method pattern. This combines three ideas: Using a factory method to create instances of a class (factory method pattern) Storing the instances in a map, and returning the same instance to each request for an instance with same parameters (multiton pattern)
In software engineering, a software design pattern or design pattern is a general, reusable solution to a commonly occurring problem in many contexts in software design. [1] A design pattern is not a rigid structure that can be transplanted directly into source code. Rather, it is a description or a template for solving a particular type of ...
The proposed name of the newly proposed dietary pattern — Eat Healthy Your Way — recognizes that healthy eating and nutrition-related chronic health conditions vary among individuals and ...
It effectively states that a method is the same thing as a class hierarchy, which is nonsense; it introduces a counterintuitive and confusing schism between the meanings of the terms "factory method" and "factory method pattern"; and AFAIA it doesn't reflect real-world usage.