NotBlank class

A FieldValidator that requires non-null strings to not be blank.

Inheritance

• Object
• RetainedAnnotation
• StructureMetadata
• NotBlank

Implemented types

• FieldValidator

Constructors

NotBlank()

Requires non-null strings to not be blank.

const

Properties

hashCode → int

The hash code for this object.

no setter, inherited

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

Methods

annotate(dynamic cached, dynamic value, DogEngine engine) → AnnotationResult

Annotates value with this validator returning an AnnotationResult. This mechanic is used to provide more information about the validation error.

override

getCachedValue(DogStructure structure, DogStructureField field) → dynamic

Returns a cached value for this validator. Will be passed to validate on every validation.

override

isApplicable(DogStructure structure, DogStructureField field) → bool

Returns true if this validator is applicable for field.

override

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

toString() → String

A string representation of this object.

inherited

validate(dynamic cached, dynamic value, DogEngine engine) → bool

Validates value against this validator.

override

Operators

operator ==(Object other) → bool

The equality operator.

inherited

Constants

messageId → const String

The message id used for the annotation result.