インタフェース Gettable<T>

型パラメータ:
T - Type
既知のサブインタフェースのリスト:
BooleanCompution, BooleanGettable, BooleanProperty, ComparativeCompution, Compution<T>, DoubleCompution, DoubleProperty, FloatCompution, FloatProperty, IntegerCompution, IntegerProperty, LogicalCompution, LongCompution, LongProperty, NumberCompution, NumberGettable<T>, NumberProperty<T>, ObjectCompution<T>, ObjectGettable<T>, ObjectProperty<T>, Property<T>, StringCompution, StringGettable, StringProperty, TimeoutGettable, TimeoutProperty

public interface Gettable<T>
Super Getter interface.