Filter Type — spring-boot Architecture

Source Code

core/spring-boot/src/main/java/org/springframework/boot/util/LambdaSafe.java lines 334–358

	@FunctionalInterface
	public interface Filter<C, A> {

		/**
		 * Determine if the given callback matches and should be invoked.
		 * @param callbackType the callback type (the functional interface)
		 * @param callbackInstance the callback instance (the implementation)
		 * @param argument the primary argument
		 * @param additionalArguments any additional arguments
		 * @return if the callback matches and should be invoked
		 */
		boolean match(Class<C> callbackType, C callbackInstance, A argument,
				@Nullable Object @Nullable [] additionalArguments);

		/**
		 * Return a {@link Filter} that allows all callbacks to be invoked.
		 * @param <C> the callback type
		 * @param <A> the primary argument type
		 * @return an "allow all" filter
		 */
		static <C, A> Filter<C, A> allowAll() {
			return (callbackType, callbackInstance, argument, additionalArguments) -> true;
		}

	}