What is factory class in magento2?

What is factory class in magento2?

Factories are service classes that instantiate non-injectable classes, that is, models that represent a database entity. They create a layer of abstraction between the ObjectManager and business code.

How do Magento 2 factories work?

As you know in OOP, a factory method will be used to instantiate an object. In Magento 2, the Magento 2 Factory Object do the same thing. To instantiate a model object we will use automatic constructor dependency injection to inject a factory object, then use factory object to instantiate the model object.

What is factory design pattern in Magento 2?

“The Factory Method pattern defines an interface for creating an object, but lets the subclasses decide which class to instantiate.

In which file you can define your dependencies for a class in Magento?

di.xml file
Object manager Magento uses class constructor signatures to retrieve information about an object’s constructor dependencies. When a class is constructed, the object manager injects the class’s dependencies, defined in the di. xml file, into the class constructor.

What is proxy in magento2?

Proxy is another new feature in Magento. It is a set of classes, automatically generated by Magento on compile-time. Proxies are used to lazy load a class they extend. The resulting code contains a Proxy class that extends a class we need this Proxy for.

What is virtual class in magento2?

A virtual type allows you to change the arguments of a specific injectable dependency and change the behavior of a particular class. This allows you to use a customized class without affecting other classes that have a dependency on the original.

When to use a factory in Magento 2?

Use Factories to create new entities Repositories do not come with methods to create a new entity, so in that case you will need a factory. But use the factory for the interface, such as Magento\\Catalog\\Api\\Data\\ProductInterfaceFactory – it will create the right implementation based on DI configuration.

Is it easy to understand Magento 2 for beginners?

Great job! everything is clearly explained. It’s ready cool to understand.Thanks for this Article. Its really easy to understand for beginners and before starting into magento 2. Great job! everything is clearly explained.

When do we use entity manager in Magento?

Magento now using entity manager concept for save,delete,load operations. Resource models have entity manager object to fulfil those operations. Using solely collections seems like the lazy way out.

Which is better a repository or a factory?

If there is a repository and it does what you need well, always prefer the repository. Repositories are part of the Service Contracts (they are implementations of interfaces in Api ), this means they are meant as a public interface to other modules.