What is the function of @pointcut in Spring?

In Spring, the purpose of @pointcut is to define a pointcut. A pointcut is a rule that selects specific methods in an application for enhancement, such as adding logging or transaction management.

Using the @pointcut annotation, you can define pointcut expressions in your code to match methods within the application. Pointcut expressions can specify the method’s name, return type, parameters, etc., to determine which methods should be enhanced.

The @pointcut annotation is often used in conjunction with other annotations (such as @Before, @After, etc.) to declare the order of execution and conditions for pointcuts and advice methods.

Utilizing @pointcut allows for more flexibility in controlling the positioning and conditions of enhancements, increasing the maintainability and reusability of the code.