CODEWITHSUNDEEP
spring-bootspring-cloud-config
Pale Blue Dot
Pale Blue Dot

Reputation: 581

Change value at Runtime in Spring Boot

I have the below code .Can I change the ThreadPoolExecutor thread number size at run time ? I am using spring boot.

@Configuration
public class ExecutorConfig
{
 @Value(numberOfThreads)
 private String numberOfThreads ; // numberOfThreads is configured app.properties file
@Bean
 public ThreadPoolExecutor executorConfig()
 
 {
        ThreadPoolExecutor e =  Executors.newFixedThreadPool(numberOfThreads);
        
        return e;
}

}

Upvotes: 0

Views: 5427

Answers (1)

Victor Romano
Victor Romano

Reputation: 187

One option is to add a set method for the property numberOfThread and then provide a way to update it, like a new endpoint. But if your app restarts it will still get the previous value from application.properties.

Other option is to use Spring Cloud Config, but this may or may not be overkill for your case.

Also, this answer goes a bit deeper with some code examples to force a reload.

Upvotes: 1

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