Java 8 repeatable custom annotations

I know about basic annotations in Java like @Override etc.

Annotations are only metadata and they do not contain any business logic.

I am going through repeating annotations from Oracle documentation page to understand Java 8 new feature.

For example, you are writing code to use a "timer service that enables you to run a method at a given time or on a certain schedule, similar to the UNIX cron service". Now you want to set a timer to run a method, doPeriodicCleanup, on the last day of the month and on every Friday at 11:00 p.m. To set the timer to run, create an @Schedule annotation and apply it twice to the doPeriodicCleanup method.

@Schedule(dayOfMonth="last")
@Schedule(dayOfWeek="Fri", hour="23")
public void doPeriodicCleanup() { ... }

Declare a Repeatable Annotation Type

The annotation type must be marked with the @Repeatable meta-annotation. The following example defines a custom @Schedule repeatable annotation type:

import java.lang.annotation.Repeatable;

@Repeatable(Schedules.class)
public @interface Schedule {
    String dayOfMonth() default "first";
    String dayOfWeek() default "Mon";
    int hour() default 12;
}

Declare the Containing Annotation Type

The containing annotation type must have a value element with an array type. The component type of the array type must be the repeatable annotation type. The declaration for the Schedules containing annotation type is the following:

public @interface Schedules {
    Schedule[] value();
}

I did not understand use and usage of @Schedules annotation. How does it work for below method now? .

public void doPeriodicCleanup() { ... }

Thanks in advance.