Laravel: Difference App::bind and App::singleton

It’s exactly like that. A very simple proof is to test out the behavior. Since the Laravel Application simply extends Illuminate\Container\Container, we’ll use just the container (in my case I even only added the container as a dependency to my composer.json) to test. require __DIR__ . ‘/vendor/autoload.php’; class FirstClass { public $value; } class SecondClass … Read more

What is the difference between Facade and Gateway design patterns?

Reviewing Facade in the GoF book and the link in another answer to Martin Fowler’s Gateway, it appears that their focus is in opposite directions. Facade provides a simple uniform view of complex internals to (one or more) external clients; Gateway provides a simple uniform view of external resources to the internals of an application. … Read more

Are the roles of a service and a façade similar?

A service is a way of writing an interface to an external system, such as a LDAP identity store, a payment gateway or an application management interface. It’s a conceptual way of looking at the external system as a provider of useful services perhaps with internal behaviours rather than a passive lump to be operated … Read more

Façade vs. Mediator

…most sites point out that the mediator “adds functionality”… The facade only exposes the existing functionality from a different perspective. The mediator “adds” functionality because it combines different existing functionality to create a new one. Take the following example: You have a logging system. From that logging system, you can either log to a file, … Read more

What is the difference between the Facade and Adapter Pattern?

The Facade Pattern wiki page has a brief note about this. “An Adapter is used when the wrapper must respect a particular interface and must support a polymorphic behavior. On the other hand, a facade is used when one wants an easier or simpler interface to work with.” I heard an analogy that you should … Read more

Difference between the Facade, Proxy, Adapter and Decorator design patterns?

Adapter adapts a given class/object to a new interface. In the case of the former, multiple inheritance is typically employed. In the latter case, the object is wrapped by a conforming adapter object and passed around. The problem we are solving here is that of non-compatible interfaces. Facade is more like a simple gateway to … Read more

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