Read constant for java @Schedule from configuration

Question

Hello What I want to achieve is have a scheduler setup so that it runs every X minutes, this x minutes should be read from a configuration file. I'm getting a compilation error saying "Attribute value must be a constant". Can you suggest me the best approach on a situation like this.

I have tried out few approaches.

1. using a constructor

   @Singleton
   @LocalBean
   public class Scheduler {
   
    final String SCHEDULER;
   
    public Scheduler() {
   
        ConfigResources configResources = ConfigResources.getConfigResources();
        SCHEDULER = configResources.getEolApiScheduler();
    }
   
    @Schedule(minute= SCHEDULER, hour="*")
    public void retryEndOfLeaseSchedule() {
   
        System.out.println("inside retryEndOfLeaseSchedule ");
   
    }
   

2. using a static block

   @Singleton
   @LocalBean
   public class Scheduler {
   
    final static String SCHEDULER;
   
    static {
   
        ConfigResources configResources = ConfigResources.getConfigResources();
        SCHEDULER = configResources.getEolApiScheduler();
    }
   
    @Schedule(minute= SCHEDULER, hour="*")
    public void retryEndOfLeaseSchedule() {
   
        System.out.println("inside retryEndOfLeaseSchedule ");
   
    }