Perform database updates in a separate thread

[Vishak]

Looking for suggestions on how to update the database in a separate thread pool using ScheduledExecutorService

The below is a simplified approach which I used to perform a DB update in a separate thread. Within the run method, the record.name is being updated, however outside the context of the below function, the database changes are not being reflected.

Can anyone share what are the best practices to perform a DB update using separate threads?

@Inject
val threadContext: ThreadContext

val runnable = threadContext.contextualRunnable(CustomRunnable(customRepository))
scheduledExecutorService.schedule(runnable, 2, TimeUnit.SECONDS)

class CustomRunnable(private val customRepository: CustomRepository) : Runnable {
@transactional
override fun run() {
val record = customRepository.findByName("randomName")
record.name = "newName"
customRepository.persist(record)
}
}