Is there a way to prevent a StartupEvent from being reprocessed on dev mode application restart ?

[celcius112]

Hello everyone !

We have a method that observes a StartupEvent. This method is only triggered in Quarkus dev mode. This method performs non-idempotent operations, so we want it to run only once, even across application restarts in dev mode.

However, every time the application restarts in dev mode (e.g., due to a code change), the StartupEvent is fired again, and the method is re-executed. We tried guarding it with a static boolean flag, but this does not work — the class is reloaded, and the static state is reset.

Is there a Quarkus-native way to prevent this event to be reprocessed, or must we rely on external mechanisms such as a distributed cache or a marker file ?