| package qual; |
| |
| import java.lang.annotation.Documented; |
| import java.lang.annotation.ElementType; |
| import java.lang.annotation.Retention; |
| import java.lang.annotation.RetentionPolicy; |
| import java.lang.annotation.Target; |
| import org.checkerframework.checker.units.qual.UnitsRelations; |
| import org.checkerframework.checker.units.qual.UnknownUnits; |
| import org.checkerframework.framework.qual.SubtypeOf; |
| |
| /** |
| * Units of frequency, such as hertz (@{@link Hz}). |
| * |
| * @checker_framework.manual #units-checker Units Checker |
| */ |
| @Documented |
| @Retention(RetentionPolicy.RUNTIME) |
| @Target({ElementType.TYPE_USE, ElementType.TYPE_PARAMETER}) |
| @SubtypeOf({UnknownUnits.class}) |
| @UnitsRelations(FrequencyRelations.class) |
| public @interface Frequency {} |