NullAwareTypeConverter<D, S extends Object> class Null safety

A type converter automatically mapping null values to null in both directions.

Instead of overriding mapToDart and mapToSql, subclasses of this converter should implement requireMapToDart and requireMapToSql, which are used to map non-null values to and from sql values, respectively.

Apart from the implementation changes, subclasses of this converter can be used just like all other type converters.

Inheritance
Implementers

Constructors

NullAwareTypeConverter()
Constant default constructor.
const

Properties

hashCode int
The hash code for this object. [...]
read-only, inherited
runtimeType Type
A representation of the runtime type of the object.
read-only, inherited

Methods

mapToDart(S? fromDb) → D?
Maps a column from the database back to Dart.
override
mapToSql(D? value) → S?
Map a value from an object in Dart into something that will be understood by the database.
override
noSuchMethod(Invocation invocation) → dynamic
Invoked when a non-existent method or property is accessed. [...]
inherited
requireMapToDart(S fromDb) → D
Maps a non-null column from the database back to Dart.
requireMapToSql(D value) → S
Map a non-null value from an object in Dart into something that will be understood by the database.
toString() String
A string representation of this object. [...]
inherited

Operators

operator ==(Object other) bool
The equality operator. [...]
inherited