Abstract Factory Method Vs Builder

Abstract factory emphasizes a family of product objects either simple or complex.

Abstract factory method vs builder. A base class defines a single abstract method that returns an interface or super class reference and defers the concrete creation of the object to subclasses. Abstract factory is one level higher in abstraction than factory method. Factory method design pattern in java. Builder returns the product as a final step but as far as the abstract factory is concerned the product gets returned immediately.

Abstract factory emphasizes a family of product objects either simple. An abstract factory is an interface or abstract class to create many different related objects. Factory method abstracts the way objects are created while abstract factory also abstracts the way factories are created. Thus i am now happy with the gof calling the factory method class scope as it farms out the.

This factory is also called as factory of factories. It is a different level of abstraction but the factory method helps to define differences between subclasses when they are created while the abstract method may be concerned with deploying entirely unrelated though similar classes as a whole. The product class defines the type of the complex object that is to be generated by the builder pattern. Builder pattern is an object creational software design pattern.

For example with the factory dp createcar might return honda or audi. This pattern is often compared with factory method pattern because factory method is also an object creational dp. Abstract factory can be used as an alternative to facade to hide platform specific classes. Abstract factory classes are often implemented with factory methods but they can also be implemented using prototype.

Builder focuses on constructing a complex object step by step. The factory method pattern uses inheritance and relies on a subclass to handle the desired object instantiation. A factory method gives you a complete object in one shot as opposed to the builder. Builder often builds a composite.

The factory method is just a method it can be overridden in a subclass whereas the abstract factory is an object that has multiple factory methods on it. This pattern is particularly useful when the client doesnt. This type of design pattern comes under creational pattern as this pattern provides one of the best ways to create an object. Monolithic vs microservices architecture.

Builder this abstract base class defines all of the steps that must be taken in order to correctly create a product. Abstract factory patterns work around a super factory which creates other factories. Builder focuses on constructing a complex object step by step.