FieldSchema class

The constraints on a single field: its type, whether it must be present (isRequired), and an optional allowed set of values (an enum).

Annotations

Constructors

FieldSchema(JsonType type, {bool isRequired = true, List<Object?>? allowed})
Describes a field of type. isRequired defaults to true; pass allowed to restrict the value to a fixed set. Audited: 2026-06-12 11:26 EDT
const

Properties

allowed → List<Object?>?
When non-null, the value must equal one of these (an enum constraint).
final
hashCode → int
The hash code for this object.
no setterinherited
isRequired → bool
Whether an absent (or null) value is an error.
final
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited
type → JsonType
The required value kind.
final

Methods

noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
toString() → String
A string representation of this object.
inherited

Operators

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