ValueComparisonRule class

Validation rule that compares value to a constant.

See IValidationRule

Example

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

schema.validate(1);          // Result: no errors
schema.validate(2);          // Result: 2 is not equal to 1
Implemented types

Constructors

ValueComparisonRule(String operation, dynamic value)
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

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

Operators

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