NotRule class Null safety

Validation rule negate another rule. When embedded rule returns no errors, than this rule return an error. When embedded rule return errors, than the rule returns no errors.

See IValidationRule

Example

var schema =  Schema()
    .withRule( NotRule(
         ValueComparisonRule('EQ', 1)
    ));

schema.validate(1);          // Result: error
schema.validate(5);          // Result: no error
Implemented types

Constructors

NotRule(IValidationRule? rule)
Creates a new validation rule and sets its values [...]

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

noSuchMethod(Invocation invocation) → dynamic
Invoked when a non-existent method or property is accessed. [...]
inherited
toString() String
A string representation of this object. [...]
inherited
validate(String? path, Schema schema, dynamic value, List<ValidationResult> results) → void
Validates a given value against this rule. [...]
override

Operators

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