Additional Notes
What are the @Target and @Retention annotations used for in custom annotations?
Track: Java
Topic: Java Annotations
Focus: Custom Annotations
Java: Custom Annotations
Answer
@Target specifies where an annotation can be applied; @Retention specifies its lifecycle.
@Target defines valid locations for your annotation, like methods or fields. @Retention decides if the annotation is available at runtime or compile-time only. For instance, if you want an annotation to be processed by your framework at runtime, you would set @Retention(RetentionPolicy.RUNTIME).
@Target defines valid locations for your annotation, like methods or fields. @Retention decides if the annotation is available at runtime or compile-time only. For instance, if you want an annotation to be processed by your framework at runtime, you would set @Retention(RetentionPolicy.RUNTIME).
Topics: Custom Annotations Java Java Annotations