Скачать или смотреть Proxies in Magento 2

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Proxies in Magento 2 are classes that act as intermediaries between a module and another class, allowing for lazy loading and runtime customization of the behavior of the platform. Proxies are used to defer the instantiation of a class until it is actually needed, providing a performance optimization for the platform.

Here's how Proxies work in Magento 2:

Definition: Proxies are defined in a module's di.xml file, and are used to replace a target class with a proxy class that acts as an intermediary. The proxy class contains the logic to determine when the target class should be instantiated and calls to the target class are forwarded to the actual instance.
Lazy Loading: Proxies allow for lazy loading of classes, meaning that the target class is not instantiated until it is actually needed. This can provide a performance optimization for the platform, as classes are only instantiated when they are actually used.
Customization: Proxies allow for runtime customization of the behavior of a class, as calls to the target class are forwarded to the actual instance. This allows for modules to modify the behavior of the platform at runtime, without the need to modify the target class directly.
Interception: Proxies also allow for interception of calls to the target class, making it possible to add additional behavior or modify the arguments of the calls before they are passed to the target class. This allows for a high degree of customization and flexibility, as modules can modify the behavior of the platform at runtime.
By using Proxies, Magento 2 provides a flexible and scalable mechanism for deferring the instantiation of classes, providing performance optimizations and runtime customization of the platform. Whether you are a developer, administrator, or merchant, understanding how Proxies work is essential to working with Magento 2 and building successful e-commerce solutions.