Let's look at an example: The above code, we can easily understand a sentence:Class A relies on Class B and Class CThat is, if in the future development process, to the Class B or Class C modification, once the change of function, the number of function parameters, and even the entire class structure adjustment, we also have to make corresponding adjustments to a class, a class of independence lost, which is very inconvenient in the development proce
PHP control inversion (IOC) and dependency injection (DI), iocdi
Let's take a look at an example:
The above code makes it easy to understand one sentence:
ClassDependencyClass B and class C
That is to say, if you need to modify Class B or Class C during future development, once the function is renamed, the number o
PHP control inversion (IOC) and dependency injection (DI), iocdi
Let's take a look at an example:
The above code makes it easy to understand one sentence:
Class A depends on class B and class C
That is to say, if you need to modify Class B or Class C during future development, once the function is renamed, the number
One. Spring Core Concept UnderstandingControl inversion:Control inversion is IOC (inversion of control). It gives the container the right to call the object that is traditionally manipulated directly by the program code. Implements assembly and management of object components through containers.The so-called "inversion
holds the object, and then gives it to the A object, as to how spring creates that object, and when to create the object's , a object does not need to care about these details (when you were born, how it was born I do not care, can help me to work on the line), a get spring to our object, two people together to complete the work to complete.So the control reversal IoC (inversion of
Dependency Injection and control inversion
Dependency Injection When I first touched the word, I was somewhat confused, so far I am also confused, so today we will explore the laravel in the dependency injection (Dependency injection), to understand it well. control reversal The first impression is a good abstruse noun ... Looks like a reverse
Doc address for Spring framework: https://docs.spring.io/spring/docs/current/spring-framework-reference/The spring framework, as an excellent open source framework, is undoubtedly highly scalable and highly available. This article records the control reversal of the spring framework.1. What is control inversion: in system development we are creating an instance.
(1) Why use control inversion and dependency injectionThe caller does not have to care about the callee's implementation, and it does not require the caller to create the callee's instance personally, which is given to the framework to complete.This design idea is control inversion (
Individual study notes, from Acode.1. TerminologyControl inversion/Reverse control, English full name "inversion of Control", referred to as IOC.Dependency Injection, English full name "Dependency injection", referred to as DI.It is said that Martin Fowler after a deep exploration of the principle of
Laravel Service container IOC (control inversion) and DI (Dependency injection) IOC container, Laravel coreThe core of Laravel is one IoC 容器 , according to the document, called "", which, as the 服务容器 name implies, provides a range of services required throughout the framework. As a beginner, many people will be puzzled by this concept, therefore, I intend to start from a number of basic content, through the
30-year-old Cao, 20-year-old body, still in the ability to allow control within the range of 22 o'clock to sleep, 5 o'clock to get up and exercise, to learn, in addition to overtime or late at night, like today, once again wrote the X million people wrote the Spring Ioc summary blog.First, the IOC control reversal of the detailed:1). Call dependencies between objects in traditional non-spring management:We
(1) Why use control inversion and dependency injection
The caller does not have to care about the callee's implementation, and it does not require the caller to create the callee's instance personally, which is given to the framework to complete.
This design idea is control inversion (
Translated from: https://www.cnblogs.com/xxzhuang/p/5948902.htmlWe look back on the history of the computer, from the first computer to occupy an area of 170 square meters, weighing 30 tons, to today's personal notebooks, things more lightweight function is more rich, this is a trend in the development of things, in the technical field is also the same, Enterprise JavaBean, EJB, was very successful at the time of its creation, but as the years began to chase more convenient and lightweight techn
Let's take a look at the basic meaning of control reversal:The inversion of Control (IOC) mode (also known as di:dependency injection) is inversion of control, which controls inversion. In Java development, IOC means handing out y
Directory"SSH Advanced path" Step by step refactoring container implementation Spring Framework-starting with a simple container (eight)"SSH Advanced path" Step by step refactoring container to implement spring framework--two schemes to solve the "intrusive" management of containers for components--active lookup and control inversion (ix)"SSH Advanced path" Step by step refactoring container implementation
First of all rely on injection and control inversion is said to be the same thing, is a design pattern, this design pattern to reduce the coupling between the program, I learned a bit, see TP official website has no relevant articles, write this my book introduce this design mode, hope to contribute some power to TP community.First of all, do not investigate the definition of the design pattern, otherwise y
Dependency Injection is a design pattern in PHP programming and is designed to reduce coupling and improve maintainability.Problem phenomenon: We often encounter a class in the programming process to instantiate another class, this class is instantiated another class, this layer of package form, often let us modify the code at the time, modified once, related to the upper layer will also be modified, if the hierarchical relationship is more complex, this modification is catastrophic. Workaround:
AUTOFAC is a. NET platform issued a good performance of the IOC framework, using it can achieve dependency injection and control inversion, so that the coupling between their software modules greatly reduced, so that software expansion, maintenance easier. Control inversion (invers
The interpretation of the IOC was: "Inversion of control are a common characteristic of frameworks, so saying this, lightweight containers are s Pecial because they use inversion the control are like saying the My car is special because it has wheels. "
I would like to perform a personal elaboration of this concept to
Let's look at an example:
The above code, we can easily understand a sentence:
Class A relies on Class B and Class C
That is, if in the future development process, to the Class B or Class C modification, once the change of function, the number of function parameters, and even the entire class structure adjustment, we also have to make corresponding adjustments to a class, a class of independence lost, wh
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