Click here to watch in Youtube :
https://www.youtube.com/watch?v=t9cNw4-xi0c&list=UUhwKlOVR041tngjerWxVccw
ServerRestartSchedule.java
https://sites.google.com/site/ramj2eev1/home/javabasics/AnnotationDemo_Repeating_Sch_App.zip?attredirects=0&d=1
Github Link:
https://github.com/ramram43210/Java/tree/master/BasicJava/AnnotationDemo_Repeating_Sch_App
Bitbucket Link:
https://bitbucket.org/ramram43210/java/src/47d09ebb24294f7b507419345f38ec4cde27d544/BasicJava/AnnotationDemo_Repeating_Sch_App/?at=master
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https://www.youtube.com/watch?v=t9cNw4-xi0c&list=UUhwKlOVR041tngjerWxVccw
ServerRestartSchedule.java
import java.lang.annotation.Repeatable; import java.lang.annotation.Retention; import java.lang.annotation.RetentionPolicy; /* * Step 1: Declare a Repeatable Annotation Type * * The annotation type must be marked with the * * @Repeatable meta-annotation. * * The value of the @Repeatable meta-annotation, in * parentheses, is the type of the container * annotation that the Java compiler generates to * store repeating annotations. In this example, the * containing annotation type is Schedules, so * repeating @Schedule annotations is stored in an * @Schedules annotation. */ @Repeatable(Schedules.class) @interface Schedule { String dayOfMonth() default "first"; String dayOfWeek() default "Mon"; int hour() default 12; } /* * Step 2: 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. */ @Retention(RetentionPolicy.RUNTIME) @interface Schedules { Schedule[] value(); } @Schedule @Schedule(dayOfMonth = "second", dayOfWeek = "Tue", hour = 17) @Schedule(dayOfMonth = "third", dayOfWeek = "Wed", hour = 24) public class ServerRestartSchedule { }RepeatingAnnotations.java
public class RepeatingAnnotations { public static void main(String[] args) { /* * Retrieving Annotations using Reflection API * method */ Schedules schedules = ServerRestartSchedule.class .getAnnotation(Schedules.class); System.out.println(schedules); Schedule[] scheduleArray = schedules.value(); for (Schedule schedule : scheduleArray) { System.out.println(schedule + " , dayOfMonth = " + schedule.dayOfMonth() + " , dayOfWeek = " + schedule.dayOfWeek() + " , hour = " + schedule.hour()); } } }Output
@Schedules(value=[@Schedule(hour=12, dayOfMonth=first, dayOfWeek=Mon), @Schedule(hour=17, dayOfMonth=second, dayOfWeek=Tue), @Schedule(hour=24, dayOfMonth=third, dayOfWeek=Wed)]) @Schedule(hour=12, dayOfMonth=first, dayOfWeek=Mon) , dayOfMonth = first , dayOfWeek = Mon , hour = 12 @Schedule(hour=17, dayOfMonth=second, dayOfWeek=Tue) , dayOfMonth = second , dayOfWeek = Tue , hour = 17 @Schedule(hour=24, dayOfMonth=third, dayOfWeek=Wed) , dayOfMonth = third , dayOfWeek = Wed , hour = 24Click the below link to download the code:
https://sites.google.com/site/ramj2eev1/home/javabasics/AnnotationDemo_Repeating_Sch_App.zip?attredirects=0&d=1
Github Link:
https://github.com/ramram43210/Java/tree/master/BasicJava/AnnotationDemo_Repeating_Sch_App
Bitbucket Link:
https://bitbucket.org/ramram43210/java/src/47d09ebb24294f7b507419345f38ec4cde27d544/BasicJava/AnnotationDemo_Repeating_Sch_App/?at=master
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