How to use JCABI Immutable in the Java library
How to use JCABI Immutable in the Java library
JCABI IMMUTable is a Java class library for creating unsatisfactory objects.Unchanged objects have great advantages in concurrent environment, because they cannot be changed, which means that they are thread -safe.
To use JCABI Immutable in Java, you need to follow the following steps:
1. Add dependencies: First, you need to add JCABI Immutable to your project.You can introduce it to your project through building tools such as Maven or Gradle.Below is a maven example configuration:
<dependency>
<groupId>com.jcabi</groupId>
<artifactId>jcabi-immutable</artifactId>
<version>1.4</version>
</dependency>
2. Create an immutable object class: In your Java code, create a class used to indicate the unable object.This class should be final, and all fields should be private, final, and should not have setter methods.The following is an example:
import com.jcabi.immutable.Immutable;
@Immutable
public final class Person {
private final String name;
private final int age;
public Person(String name, int age) {
this.name = name;
this.age = age;
}
public String getName() {
return this.name;
}
public int getAge() {
return this.age;
}
}
In the above example, the Person class is annotated as @immutable, and all fields are private and final.
3. Using unsatisfactory objects: It is very simple to use the unsatisfactory objects created using JCABI Immutable.You only need to create them like creating ordinary Java objects and use the Getter method to access their attributes.The following is an example:
Person person = new Person("John", 25);
System.out.println (Person.getName ()); // Output: John
System.out.println (Person.getage ()); // Output: 25
In the above example, we created a Person object called "John", age 25, and using the Getter method to access its attributes.
Summarize:
It is simple to use JCABI IMMUTable to create unsatisfactory objects.You only need to add dependencies, create unsatisfactory object classes, and use the Getter method to access its attributes.Unchanged objects are very useful for Java applications in concurrent environment because they are safe threads.I hope this article will help you learn how to use JCABI Immutable in the Java class library.
Please note that in order to facilitate understanding, the above example provides only basic code, and the actual use of JCABI IMMUTable may require more configuration and processing.
