CODEWITHSUNDEEP
javaspringmultithreadingspring-bootjava-8
user1643003
user1643003

Reputation: 285

Async Operation using Spring Boot and Executors

I want to understand the difference between the two codes I am using Java and Springboot. Are they both equivalent -

a. Without using @Async and spawning a new thread/task an submitting to the taskexecutor b. One that uses @Async along with the executor name

a.

public void executeNewThread() {    
        Thread t = new Thread( ()->{
        try {
            Thread.sleep(10000);
            //we are using nasa open API
            fetchNasaLocInfo();
        } catch (InterruptedException e) {
            e.printStackTrace();
        }
    });
    taskExecutor.execute(t);
}

b.

@Async("specificTaskExecutor")
public void executeAsync() {
        try {
        Thread.sleep(10000);

        //we are using nasa open API
        fetchNasaLocInfo();
    } catch (InterruptedException e) {
        e.printStackTrace();
    }
}

Upvotes: 2

Views: 1324

Answers (1)

Nikolas
Nikolas

Reputation: 44368

These two links directly from Spring probably provide a sufficient answer to your question.

Basically, the annotated method with @Async is considered as an asynchronous method and should return either Future or its specification or void. The method runs in a thread taken from a specified executor service's thread pool (@Async("specificTaskExecutor")), which is usually provided as a bean:

@Bean(name = "specificTaskExecutor")
public TaskExecutor specificTaskExecutor() {
    ThreadPoolTaskExecutor specificTaskExecutor = new ThreadPoolTaskExecutor();
    specificTaskExecutor.initialize();
    return specificTaskExecutor;
}

Upvotes: 1

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