The characteristics and advantages of the JCABI Immutable framework
JCABI IMMUTable is an open source framework for Java language, which is specially used to create unsatisfactory objects.Inconsistent objects show good performance and thread security characteristics in a multi -threaded environment.In this article, we will discuss the characteristics and advantages of the JCABI Immutable framework, and give some Java code examples to illustrate its usage.
Features of JCABI Immutable:
1. Forcelessness: The JCABI Immutable framework provides a statement method to help developers create unsatisfactory objects.By using the annotation @immutable markup class and constructor, the framework will check the code during compilation to ensure that the state of the object is immutable.
2. Use Builder mode: The framework provides a builder mode for the unsatisfactory object, making the object's construction process more flexible and readable.Developers can use a chain call to set the object attribute, and finally use the BUILD () method to create unspeakable objects.
3. Non -empty attribute check: By using the annotation@notnull, the JCABI Immutable framework can check the empty value of the attribute during compilation to ensure that the attributes of the unsatisfactory objects are not empty, which improves the robustness and security of the code.
JCABI Immutable advantage:
1. Thread security: Because the state of the unsatisfactory object cannot be changed, multiple threads can access the object at the same time without having to perform synchronous operations.This allows higher performance and better scalability in the concurrent environment.
2. Reliability: Unchanged objects can ensure that its attributes will not be changed after the object is created, which helps to debug and track programs.The uncharacteristic object eliminates the possibility of the object being modified during the execution and reduces the error.
3. Code simplicity: Using the JCABI Immutable framework, developers can focus on the design and business logic of the object without paying attention to the tedious details related to immutability.This prompts the code to be more concise and easy to understand.
Below is an example code that uses JCABI IMMUTable framework to create unsatisfactory objects:
import com.jcabi.immutable.*;
@Immutable
public final class Person {
private final String name;
private final int age;
public Person(@NotNull String name, int age) {
this.name = name;
this.age = age;
}
public String getName() {
return this.name;
}
public int getAge() {
return this.age;
}
}
public class Main {
public static void main(String[] args) {
Person person = new Person("John", 30);
System.out.println("Name: " + person.getName());
System.out.println("Age: " + person.getAge());
}
}
In the above example, we created an unspeakable object called Person.Use the annotation @immutable to mark this class, and ensure that the name attribute is not empty through annotation @Notnull.The constructive function uses name and Age as a parameter, and uses the final keyword to set them to unsusable attributes.By calling the getName () and Getage () methods, we can access the attributes of the object.
Summarize:
The JCABI IMMUTABLE framework provides a simple and powerful way to create unsatisfactory objects to help developers write threads safe and reliable code.By mandatory inseparable and providing the BUILDER mode, the framework simplifies the creation and maintenance process of objects.Using the JCABI Immutable framework, you can enjoy higher performance, better scalability and simpler code.
