- What is dependency injection in simple words?
- What is the difference between @inject and @autowired?
- What is service container?
- What is a class dependency?
- Are containers PaaS?
- Is Kubernetes IaaS or PaaS?
- Is Kubernetes a PaaS?
- Why should I use dependency injection?
- What are services in laravel?
- What is bind in laravel?
- Why should I use containers?
- Are containers serverless?
What is dependency injection in simple words?
In software engineering, dependency injection is a technique in which an object receives other objects that it depends on.
These other objects are called dependencies.
In the typical “using” relationship the receiving object is called a client and the passed (that is, “injected”) object is called a service..
What is the difference between @inject and @autowired?
The @Autowired annotation is used for auto-wiring in Spring framework. … The @Inject annotation also serves the same purpose, but the main difference between them is that @Inject is a standard annotation for dependency injection and @Autowired is spring specific.
What is service container?
A Service Container (or dependency injection container) is simply a PHP object that manages the instantiation of services (i.e. objects). … You certainly don’t want to repeat the mailer configuration every time you need to use the Mailer object.
What is a class dependency?
What is a Dependency? Whenever a class A uses another class or interface B, then A depends on B. A cannot carry out it’s work without B, and A cannot be reused without also reusing B. In such a situation the class A is called the “dependant” and the class or interface B is called the “dependency”.
Are containers PaaS?
Containers, commonly Docker open source containers, are one of the building blocks of PaaS, and in a certain manner are an enabler of it.
Is Kubernetes IaaS or PaaS?
Kubernetes leverages the simplicity of Platform as a Service (PaaS) when used on the Cloud. It utilises the flexibility of Infrastructure as a Service (IaaS) and enables portability and simplified scaling; empowering infrastructure vendors to provision robust Software as a Service (Saas) business models.
Is Kubernetes a PaaS?
Kubernetes is not a traditional, all-inclusive PaaS (Platform as a Service) system. … Kubernetes aims to support an extremely diverse variety of workloads, including stateless, stateful, and data-processing workloads. If an application can run in a container, it should run great on Kubernetes.
Why should I use dependency injection?
Dependency injection is a programming technique that makes a class independent of its dependencies. … That enables you to replace dependencies without changing the class that uses them. It also reduces the risk that you have to change a class just because one of its dependencies changed.
What are services in laravel?
A service is basically just a class that handles one thing (single responsibility), so that the functionality that the class provides, can be reused in multiple other parts of the application. The Registrar service included with Laravel is responsible for registering new users, for example.
What is bind in laravel?
If we take a look at the Laravel documentation, binds are registered using the bind() method. The first argument passed in is a class name, followed by a closure that returns an instantiated instance of that class object.
Why should I use containers?
Containers give developers the ability to create predictable environments that are isolated from other applications. Containers can also include software dependencies needed by the application, such as specific versions of programming language runtimes and other software libraries.
Are containers serverless?
Following are key differences between containers and serverless: Supported host environments: Containers can run on any modern Linux server, as well as certain versions of Windows. In contrast, serverless runs on specific host platforms, most of which are based in the public cloud (like AWS Lambda or Azure Functions).