Validator class

Container class for a series of ValueValidator objects. Each ValueValidator will be evaluated in a short-circuited way such that as soon as one returns an error evaluation will immediately be stopped and the error will be returned.

This has a set of built-in validators that it can decode and supports applications adding their own custom validator builders.

Constructors

Validator({required List<ValueValidator> validators})

Properties

hashCode → int: The hash code for this object.
no setterinherited
runtimeType → Type: A representation of the runtime type of the object.
no setterinherited
validators → List<ValueValidator>: final

Methods

noSuchMethod(Invocation invocation) → dynamic: Invoked when a nonexistent method or property is accessed.
inherited
toJson() → Map<String, dynamic>: Encodes this class into a JSON-compatible Map.
toString() → String: Returns the string encoded JSON representation for this class. This will remove all null values and empty collections from the returned string.
inherited
validate({required String label, required String? value}) → String?: Executes each of the validators, in order. This will fail-fast where it will stop walking the list as soon as any validator returns an error.

Operators

operator ==(Object other) → bool: The equality operator.
inherited

Static Methods

fromDynamic(dynamic map) → Validator: Processes the list of ValueValidator objects from the given map which must be an actual Map or a Map-like object that supports the [] operator. Any object that is not Map-like will result in an error.
registerCustomValidatorBuilder(String type, JsonClassBuilder<ValueValidator> builder) → void: Registers a custom validator builder for the given type. This will replace / overwrite any builder already registered for the given type.
unregisterCustomValidatorBuilder(String type) → void: Unregisters / removes a custom builder from the given type. This will do nothing if the type is not already registered.