ULabelValueDefinitionDefaultSetting class
Overview
This is an union object to improve safety and convenience of objects using Enum.
Enum provides a very powerful type for a specific group of data, but at the same time it means a loss of flexibility: values not defined in Enum are either completely ignored or an exception is thrown if parsing fails. This union object exists to solve that problem.
This union object handles the KnownValue
, a known enum value defined in Lexicon,
and the UnknownValue
, an unknown string value not defined in Lexicon. In other words,
it can handle unknown values while enjoying the type safety of Enum.
Usage
// use when syntax.
final value = object.when(
knownValue: (data) => data, // => KnownLabelValueDefinitionDefaultSetting
unknownValue: (data) => data, // => String
);
// or simpler way.
if (object.isKnownValue) {
print(object.knownValue); // => KnownLabelValueDefinitionDefaultSetting or null
} else if (object.isUnknownValue) {
print(object.unknownValue); // => String or null
}
- Available extensions
- Annotations
-
- @freezed
Constructors
- ULabelValueDefinitionDefaultSetting.knownValue({required KnownLabelValueDefinitionDefaultSetting data})
-
constfactory
- ULabelValueDefinitionDefaultSetting.unknownValue({required String data})
-
constfactory
Properties
Methods
-
map<
TResult extends Object?> ({required TResult knownValue(ULabelValueDefinitionDefaultSettingKnownValue value), required TResult unknownValue(ULabelValueDefinitionDefaultSettingUnknownValue value)}) → TResult -
inherited
-
mapOrNull<
TResult extends Object?> ({TResult? knownValue(ULabelValueDefinitionDefaultSettingKnownValue value)?, TResult? unknownValue(ULabelValueDefinitionDefaultSettingUnknownValue value)?}) → TResult? -
inherited
-
maybeMap<
TResult extends Object?> ({TResult knownValue(ULabelValueDefinitionDefaultSettingKnownValue value)?, TResult unknownValue(ULabelValueDefinitionDefaultSettingUnknownValue value)?, required TResult orElse()}) → TResult -
inherited
-
maybeWhen<
TResult extends Object?> ({TResult knownValue(KnownLabelValueDefinitionDefaultSetting data)?, TResult unknownValue(String data)?, required TResult orElse()}) → TResult -
inherited
-
noSuchMethod(
Invocation invocation) → dynamic -
Invoked when a nonexistent method or property is accessed.
inherited
-
toString(
) → String -
A string representation of this object.
inherited
-
when<
TResult extends Object?> ({required TResult knownValue(KnownLabelValueDefinitionDefaultSetting data), required TResult unknownValue(String data)}) → TResult -
inherited
-
whenOrNull<
TResult extends Object?> ({TResult? knownValue(KnownLabelValueDefinitionDefaultSetting data)?, TResult? unknownValue(String data)?}) → TResult? -
inherited
Operators
-
operator ==(
Object other) → bool -
The equality operator.
inherited