FLUENT Reflection Parent framework technical principles of technical principles in the Java library
FLUENT Reflection Parent framework technical principles of technical principles in the Java library
Summary:
The reflex mechanism of the Java language provides developers with the ability to create objects, call methods, and access fields at runtime.Although the reflection provides a lot of flexibility, its basic API requires complex calling methods and easy -to -make errors.In order to simplify the process of reflective operations and increase the readability and maintenance of the code, the FLUENT Reflection Parent framework came into being.This article will introduce Fluent Reflection Parent framework technical principles and application research in the Java library.
1 Introduction
The Java reflection mechanism allows developers to dynamically obtain and operate information at runtime.Through reflection, we can dynamically create instances, call methods, and access fields, which are very useful in some cases, such as when writing universal frameworks and libraries.However, the basic APIs of the Java reflection are relatively complicated, and sometimes it is easy to make errors, which reduces the readability and maintenance of code.
2. Fluent Reflection Parent framework technical principle
The original intention of the FLUENT Reflection Parent framework is simplified Java reflection operations, providing a more concise and easy -to -use API to improve the readability and maintenance of the code.The technical principles are shown below:
2.1. Chain call
The FLUENT Reflection Parent framework makes the reflection operation look more similar to the expression of natural language through a chain call.The use of multiple methods by using a point operator can continuously operate the information of the class without writing a lengthy and repeated code.
2.2. Anomalous treatment
The FLUENT Reflection Parent framework processed abnormalities that may occur during the Java reflection, such as noSuchmedHodexception and iLlegalaccessException.Developers can use Try-Catch blocks to deal with abnormalities, or use abnormal processing APIs provided by the framework, such as onnosuchmedHodexception and onillegalaccessException.
2.3. Method Chain
FLUENT Reflection Parent framework allows us to use the method chain in the method call.By linking operations together, continuous reflex operations can be performed smoother.For example, you can get the value of the name field through.
3. Application research in the Java class library
The application research of the FLUENT Reflection Parent framework in the Java library is mainly reflected in simplifying reflex operation and improving the readability and maintenance of code.
3.1. Dynamic proxy
Using Fluent Reflection Parent framework, we can create dynamic proxy objects more easily.By using the. WithInterfaces (Interfacelist) and. WithHandler (Invocationhandler) method, we can dynamically create an agent object that implements the specified interface.
MyInterface proxy = FluentReflection.on(MyInterface.class)
.withInterfaces(Arrays.asList(MyInterface.class))
.withHandler(new MyInvocationHandler())
.create()
.get();
3.2. Reflective tool class
The FLUENT Reflection Parent framework can help us create a simpler reflex tool class, provide some commonly used packaging methods to enable developers to use reflexes more conveniently.
public class ReflectionUtils {
public static Object invokeMethod(Object object, String methodName, Object... args) {
return FluentReflection.on(object.getClass())
.callMethod(methodName)
.withParameters(args)
.invoke(object)
.get();
}
}
Through the above code, we can easily call a method of an object without the need to find and abnormally throw the logic.
4 Conclusion
The FLUENT Reflection Parent framework simplifies the process of the Java reflection operation by providing a simple and easy -to -use API, which improves the readability and maintenance of the code.In terms of application research in the Java class library, it can help us create dynamic proxy objects more easily, and can be used to create reflex tool classes to provide more convenient reflex operation packaging.With the widespread application of Java reflexes, the FLUENT Reflection Parent framework will play an increasingly effective role to provide Java developers with a more efficient and convenient programming experience.
references:
- Fluent Reflection Parent, GitHub, https://github.com/aesteve/fluent-reflection-parent/