Tag: instantiation

Spring instantiation source code analysis registerBeanPostProcessors (6)

BeanPostProcessors is an extension mechanism in the Spring framework that allows developers to intervene and customize the process of instantiating, configuring, and initializing beans in the Spring container. The BeanPostProcessor interface defines two methods: postProcessBeforeInitialization and postProcessAfterInitialization, which are called before and after Bean initialization respectively. The role of BeanPostProcessors is to provide additional processing […]

Verilog parameter definition and parameter modification in instantiation module

Article directory Advantages of defining parameters Parameter definition in rtl module Define parameters after module name parameterdefine parameters Parameter modification in instantiated module modified during instantiation defparammodification Summary and explanation Appendix: Test code Advantages of defining parameters When a module is instantiated by a reference from another module, the higher-level module can rewrite the parameter […]

Spring instantiation source code analysis ClassPathBeanDefinitionScanner (5)

Spring instantiation source code analysis ClassPathBeanDefinitionScanner (5) In the last chapter, we analyzed ComponentScanAnnotationParser, mainly analyzing the properties and properties within the @ComponentScan annotation. The information parsed by the annotation will be used by the ClassPathBeanDefinitionScanner scanner, which is what needs to be analyzed in this chapter. Without further ado, let’s get straight to the […]

Spring instantiation source code analysis ComponentScanAnnotationParser (4)

In the previous chapter, we analyzed ConfigurationClassParser, the parsing source code analysis of configuration classes. During the parsing process of candidate configuration classes modified by ComponentScans and ComponentScan annotations, we need to have an in-depth understanding of the parse execution process of ComponentScanAnnotationParser, why the SpringBoot startup class is written like this, why there is […]

Spring instantiation source code analysis ConfigurationClassParser (3)

Foreword In the previous chapter, we analyzed the source code logic of the postProcessBeanDefinitionRegistry method of ConfigurationClassPostProcessor. The core logic do while calls the parser.parse(candidates) method to parse the candidate configuration classes in candidates. Then in this chapter we mainly analyze what the parse method of ConfigurationClassParser does. parse configCandidates only has our AopConfig class […]

SFINAE template instantiation and specialization template and typename

std::void_t SFINAE (Substitution Failure Is Not An Error), its function is to select the correct template when we specialize the template to avoid failure Reprinted C++ Template Advanced Guide std::enable_if boost::mpl boost metaprogramming library 1. Function template Click to view the code #include <iostream> template <typename T> T const & amp; Max(T const & amp; […]

Spring instantiation source code analysis of ConfigurationClassPostProcessor (2)

ConfigurationClassPostProcessor source code analysis Continuing from the previous chapter, when the invokeBeanDefinitionRegistryPostProcessors method is called for the first time, the parameter currentRegistryProcessors is ConfigurationClassPostProcessor. This chapter mainly goes into the postProcessBeanDefinitionRegistry method of this class. postProcessBeanDefinitionRegistry The first comment you see can completely summarize the entire content of the source code in this chapter: Derive […]

[Spring] Bean instantiation (creation | acquisition)

According to the latest Spring framework tutorial of [Power Node], the first set of Spring6 tutorials on the entire network, I followed Lao Du from zero-learning spring to advanced and Lao Du’s original notes https://www.yuque.com/docs/share/866abad4-7106 -45e7-afcd-245a733b073f?# “Spring6” for finishing, document password: mg9b Spring related articles are summarized and summarized at: https://www.yuque.com/u27599042/zuisie Spring provides a variety […]

Spring core concepts, understanding of IoC and DI, bean configuration and instantiation in Spring, bean life cycle

Initial Spring 1. The core concept of Spring 1.1IoC (Inversion of Contral): Inversion of Control 1.2 IoC code implementation 1.2 DI code implementation 2. Bean-related operations 2.1 bean configuration 2.1.1 Basic configuration of beans 2.1.2 bean alias configuration 2.1.3 scope configuration of bean 2.2 Bean instantiation – – construction method 2.3 Bean instantiation – – […]