Don't you know the usage scenario of the responsibility chain model?

summary In the code, we often have if... else... Judgment. If one condition is not met, we will make the next judgment. This is similar to the responsibility chain mode, but the responsibility chain mode is filtered through objects. scene In the Internet of things industry, a device will push data to the server at a certain frequency to facilit ...

Posted by revraz on Sat, 23 Apr 2022 09:42:13 +0300

Design pattern of python

Design mode Design pattern is a set of code design experience that is repeatedly used, known by most people, classified and catalogued. The purpose of using design patterns is to reuse the code, make the code easier to be understood by others and ensure the reliability of the code. 0. Interface Definition: a special class that declares s ...

Posted by NNTB on Thu, 21 Apr 2022 09:08:35 +0300

Design mode - on observer mode

Introduction to observer mode Observer pattern is the most commonly used design pattern in design patterns. It is often used in one to many software design scenarios. A popular example is the relationship between a newspaper and its subscribers. Anyone who needs a newspaper only needs to subscribe to the newspaper, and the newspaper office wil ...

Posted by ashrust on Thu, 21 Apr 2022 01:12:48 +0300

Design mode --- structural mode

Loose coupling is realized from the program structure, which can expand the overall class structure (1) Adapter mode realization: So that classes with incompatible interfaces can work together For example, the usb interface is incompatible with the network cable interface. One usb transfer interface can be used to make the two work together ...

Posted by metalblend on Wed, 20 Apr 2022 14:08:53 +0300

[design pattern learning notes] detailed explanation of cases of appearance mode and element sharing mode (C + + implementation)

catalogue 1, Appearance mode 1. What is appearance mode 2. Appearance mode cases 2, Sharing mode 1. What is the sharing mode 2. Cases of sharing mode 1, Appearance mode 1. What is appearance mode Facade Pattern is one of the appearance patterns and structural design patterns. The appearance mode provides a consistent and simple interf ...

Posted by gilgimech on Wed, 20 Apr 2022 07:07:28 +0300

Detailed explanation of Java proxy mode

Guidance 1, Proxy pattern The principle of AOP is dynamic agent Dynamic proxy solves the tight coupling between methods, and additional operations can be carried out dynamically in the middle of method calls IOC solves the tight coupling between classes! 1. Core roles and application scenarios Core role: Abstract object Public e ...

Posted by ranman on Wed, 20 Apr 2022 03:20:33 +0300

[Java design patterns, design patterns and paradigms] structural mode 4: bridging mode

This Blog continues to learn about structural patterns and how to more gracefully layout classes and objects. Structural patterns describe how to combine classes or objects according to a certain layout in order to obtain a better and more flexible structure. Although the object-oriented inheritance mechanism provides the most basic function of ...

Posted by jarcoal on Mon, 18 Apr 2022 18:06:06 +0300

Composite Pattern

1, Definition Composite Pattern: one of the structural patterns, which combines multiple objects to form a tree structure to represent the hierarchical structure of "whole part" relationship. The combination mode has consistency in the processing of leaf nodes and container nodes, which is also called whole part mode. 2, UML class d ...

Posted by guest on Mon, 18 Apr 2022 11:56:04 +0300

Golang design pattern in Kubernetes

With Kubernetes becoming the de facto standard in the field of container choreography, Golang is more and more used in cloud native. Today, we follow the steps of K8s and learn which classic design patterns are used in K8s. Create mode As the name suggests, the creation pattern provides an object creation mechanism, encapsulates the internal ...

Posted by wwfc_barmy_army on Mon, 18 Apr 2022 06:34:22 +0300

Design mode - bridge

preface If a cross platform software is implemented, how to deal with the platform related and platform independent parts, that is, the relationship between abstraction and implementation, involves the Bridge bridging mode. 1 Definition Separate the abstract part from the implementation part so that they can change independently 2 appli ...

Posted by Sealr0x on Sun, 17 Apr 2022 07:12:16 +0300