Tag: visitor

24 Behavioral Pattern-Visitor Pattern

1 Introduction to visitor mode The visitor pattern is rarely used in actual development because it is difficult to implement and applying this pattern may lead to poor readability and maintainability of the code. It is not recommended to use it unless it is particularly necessary. Visitor mode. 2 Principle of visitor mode 3 Visitor […]

cola architecture: a brief analysis of the application of visitor mode in cola source code

Table of Contents 1. Introduction to visitor mode 2.cola visitor mode application 2.1 cola visitor class diagram 2.2 cola visitor class diagram We know that if an object structure contains many types of objects, we want to perform some operations on these objects that depend on their specific types, but we avoid letting these operations […]

2023-7-20-The twenty-first visitor mode

*,°*:.☆(￣▽￣)/$:*.°* Welcome to Tom’s csdn blog Friends who like it can pay attention to it, the next update will not get lost Private chat to get a personal subscription number, welcome to subscribe and learn together You can join the big family group chat, study together and have benefits every day Summary of this article […]

cpp: Visitor Pattern

/********************************************** *******************//** * \file Gold.h * \brief Visitor Pattern Visitor Pattern C++14 Behavior Pattern * June 8, 2023 Tu Juwen Geovin Du Visual Studio 2022 edit. Article source “C ++ New Classical Design Patterns” edited by Wang Jianwei Tsinghua University Press * \author geovindu * \date June 2023 ***************************************************** *******************/ #pragma once #ifndef GOLD_H #define […]

[2023 Raopai Cup Internet of Vehicles CTF] Web-Vehicle system open to visitors writeup

0x01 Title: In-vehicle system open to visitors, enter the environment: http://172.35.8.73/ 0x02 problem solution: Run through the dictionary on the login page and find that Guest/Guest can log in: After entering the page: According to hint, the vulnerability involved CVE-2022-44268 The exploit code is as follows: #!/usr/bin/env python3 import sys import png import zlib import […]

Using Java and Golang to implement the visitor pattern (nineteen)

Design pattern-behavior-visitor pattern 1. Visitor mode Represents an operation that acts on elements in an object structure, allowing you to define operations that act on elements without changing their class new operation for . applicability: An object structure contains many class objects with different interfaces, and you want to perform some operations on these objects […]

Visitor mode – reserved channel, callback implementation

The visitor pattern is a design pattern that is difficult to understand. Like the bridge pattern, it has two sets of inheritance systems. The difference is that the bridge pattern separates a complex problem into two parts: abstraction and concrete implementation, such as In the example of sending a message in “Bridge Mode–A Bridge Between […]

C++ Visitor Pattern: The Beauty of Design and Application

Directory title Introduction to the Visitor Pattern Overview of Design Patterns Application Scenarios of the Visitor Pattern Design and Implementation of the Visitor Pattern in C++ (Design and Implementation of the Visitor Pattern in C++) Abstract Visitor and Concrete Visitor Abstract Element and Concrete Element Object Structure UML diagram Sample Code (Sample Code) Pros and […]