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Creating custom annotations in Java involves defining the annotation interface, applying it to relevant code elements, and then implementing an annotation processor to interpret and act up on these annotations using reflection. This powerful mechanism allows for metadata-driven programming, where code behavior can be influenced without altering ...

Spring Boot's validation framwork provides server-side data validation capabilities, though this approach increases server load due to the extensive code executino path required for HTTP requests. This makes Spring particularly suitable for systems with moderate real-time requirements and sufficient resoucres. Custom Validator Implementation im ...