Detailed explanation of the technical principles and implementation of the FLUENT Reflection framework in the Java library
FLUENT Reflection is a powerful Java class library that provides developers with a more concise and convenient way to operate and use the Java reflection mechanism.This article will introduce the technical principles and implementation of the FLUENT Reflection framework in detail.
1. Technical principles
1. Reflective mechanism
The Java reflection mechanism allows the program to obtain the information and operate the object when runtime.Through reflection, you can dynamically load class, call class methods, obtain class fields, etc.Java's reflection mechanism is very powerful, but it is slightly cumbersome to use.
2. Fluent Reflection framework
The goal of the FLUENT Reflection framework is to simplify the use of Java reflection and provide a simple and intuitive way to write reflex -related code.It hides the complexity of the Java reflection mechanism by using smooth APIs, enabling developers to perform reflex operations easier.
2. Implementation method
FLUENT Reflection calls reflex operations through a series of chain methods.Below we will introduce several core implementation methods in detail.
1. Class module
FLUENT Reflection provides the Class module for obtaining information.Developers can use the method of this module to obtain information about the names, package names, and father -in -law of the class.For example:
FluentClass.of(User.class)
.getsimplename () // Get the simple name of the class, such as "user"
.getpackagename () // Get the package name of the class
.getSuperclass () //
...
2. Method module
FLUENT Reflection provides the Method module for operating methods.This module can be used to obtain all the methods, execute methods, and accessability of the setting method.For example:
FluentMethod.with(User.class)
.stream () // All methods to obtain a class
.filter (m-> m.getName (). Startswith ("Get")) // Filter the method of "get" starting with "get".
.foreach (m-> m.invoke (user)) // The call method
3. Field module
FLUENT Reflection provides a Field module for operating fields.Developers can use the module to access and modify the fields of the class.For example:
FluentField.of(User.class)
.get ("name") // Get the field
.ifrendsnt (f -> f.set (user, "John") // Set the value of the field
4. Construction function module
FLUENT Reflection also provides the Constructor module for the constructor for operating classes.Developers can use the module to instantiate the class object.For example:
FluentConstructor.of(User.class)
.newinstance ("John") // Use the specified parameter to create objects
3. Summary
Fluent Reflection is a convenient Java class library. By simplifying the use of the Java reflection mechanism, it is easier for developers to operate and use class information, fields, methods, and constructors.Through the chain method call, the Fluent Reflection provides a smooth API, making the code -related code more concise and intuitive.It is a very valuable tool for developers who need to use Java to reflect frequently.