ArrowUnionType class final
Arrow sparse or dense union. Each child has a type id (default its index).
- Inheritance
-
- Object
- ArrowDataType
- ArrowUnionType
Constructors
-
ArrowUnionType(List<
ArrowField> fields, {ArrowUnionMode mode = ArrowUnionMode.sparse, List<int> ? typeIds})
Properties
-
fields
→ List<
ArrowField> -
final
- hashCode → int
-
The hash code for this object.
no setterinherited
- mode → ArrowUnionMode
-
final
- runtimeType → Type
-
A representation of the runtime type of the object.
no setterinherited
-
typeIds
→ List<
int> -
final
Methods
-
fieldForTypeId(
int typeId) → ArrowField? -
Child field for
typeId, or null when undeclared. -
noSuchMethod(
Invocation invocation) → dynamic -
Invoked when a nonexistent method or property is accessed.
inherited
-
toJson(
) → Map< String, Object?> -
override
-
toString(
) → String -
A string representation of this object.
inherited
Operators
-
operator ==(
Object other) → bool -
The equality operator.
inherited