What are factory classes in Magento 2?
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.
What are proxy classes in Magento 2?
A proxy implements the same interface as the original class and so can be used as a dependency anywhere the original class can. Unlike its parent, a proxy has only one dependency: the object manager. Proxies are generated code and therefore do not need to be manually written.
Do you need to define factory class in Magento?
Unless you require specific behavior for your factory classes, you do not need to explicitly define them because they are an automatically generated class type. When you reference a factory in a class constructor, Magento’s object manager generates the factory class if it does not exist.
What does a proxy class do in Magento?
A proxy class lets you dependency-inject a class that you won’t necessarily need, and that has a high cost associated with doing so. If you look at a proxy Magento has generated, like \\Magento\\Framework\\View\\Layout\\Proxy, you’ll see it has all of the same methods as the original class.
What is the objectmanager class in Magento framework?
The Magento\\Framework\\ObjectManager is the class responsible for instantiating objects in the Magento application. Magento prohibits depending on and directly using the ObjectManager in your code. Factories are an exception to this rule because they require the ObjectManager to instantiate specific models.
What does the Execute method do in Magento 2?
If you’ve read previous articles on the subject, you know that every URL in Magento 2 corresponds to a single controller file, and each controller file has a single execute method. This execute method is responsible for returning a “result” object (i.e. an object that implements the MagentoFrameworkControllerResultInterface` interface).