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proxy pattern Simply put: instead of accessing the real object, the proxy object can be used to provide additional functional operations to extend the function of the target object without modifying the original target object. The main purpose of the proxy mode is to extend the capabilities of the target object, for example, you can add s ...

Proxy Pattern 1 Introduction: Agency mode is also called entrustment mode, which is a structural design mode. 2 Definition: provide a proxy for other objects to control access to this object. 3 usage scenarios: (1) do not want to directly access an object; (2) when it is impossible or difficult to access an object, it can be accessed indirec ...

Javabase java reflection mechanism Application of reflection: dynamic proxy Dynamic agent overview Principle of agent design pattern: Wrap the object with a proxy object, and then replace the original object with the proxy object. Any call to the original object must be operated through the proxy object. The proxy object determines whethe ...

1.2 annotation reflection and dynamic proxy 1.2.1 reflection Reflective entry Java lang.Class Objects in daily development are divided into two types: basic type and reference type Basic type, (8 fixed) Integer: byte, short, int, long Decimal: float, do ...

1: Implementation of static agent Define interface /** * @description: * A factory that processes mobile phones * @date: 2022/2/12 * @author: linshujie */ public interface IPhoneFactory { /** * Customized design of mobile phone * @param design */ void makePhoneDesign(String design); } /** * @description: * A fac ...

preface Interview question: talk about jdk dynamic agent, cglib difference, implementation principle, advantages and disadvantages, and how to call methods come from: One and a half years of face-to-face experience sharing of social recruitment (including JD Didi, the headline of Alibaba meituan) This article summarizes the knowledge po ...

Examples of using dynamic agents When it comes to Java's dynamic agent, I believe many developers are very familiar with it. However, in order to better explain and analyze the principle and source code of dynamic agent, let's first understand the actual use examples of dynamic agent: Now there is a scenario: Star Michel has two skills, sing ...

Combination mode Basic introduction Composite Pattern, also known as partial overall pattern, creates a tree structure of object groups and combines objects into a tree structure to represent the hierarchical relationship of "whole part".The combination mode combines objects according to the tree structure, which is used to represen ...

Summary CGLIB is a powerful and high performance code generation library. It is widely used in AOP frameworks (Spring, dynaop) to provide methods for intercepting operations. Hibernate, as a popular ORM framework, also uses CGLIB to proxy one-side (many-to-one and one-to-one) associations (another mechanism for delayed collection extractio ...

1, Foreword         In some cases, a customer does not want or cannot directly access an object. At this time, it needs to find an intermediary to help complete a task. This intermediary is the proxy object. For example, you don't have to go to the railway station to buy train tickets. You can buy them through 12306 websit ...