Configuring Scheduled Tasks with Annotation Metadata

If you wish to make your application’s tasks configurable then you can use annotation metadata and property placeholder configuration to do so. For example:

Allow tasks to be configured

    @Scheduled( fixedRate = "${my.task.rate:5m}",
                initialDelay = "${my.task.delay:1m}" )
    void configuredTask() {
        System.out.println("Executing configuredTask()");
    }

Allow tasks to be configured

    @Scheduled( fixedRate = "\${my.task.rate:5m}",
                initialDelay = "\${my.task.delay:1m}" )
    void configuredTask() {
        System.out.println("Executing configuredTask()")
    }

Allow tasks to be configured

    @Scheduled(fixedRate = "\${my.task.rate:5m}",
            initialDelay = "\${my.task.delay:1m}")
    internal fun configuredTask() {
        println("Executing configuredTask()")
    }

The above example allows the task execution frequency to be configured with the property my.task.rate and the initial delay to be configured with the property my.task.delay.