TableFieldSchema class

A field in TableSchema

Constructors

TableFieldSchema({TableFieldSchemaCategories? categories, String? collation, TableFieldSchemaDataGovernanceTagsInfo? dataGovernanceTagsInfo, List<DataPolicyOption>? dataPolicies, DataPolicyList? dataPolicyList, String? defaultValueExpression, String? description, List<TableFieldSchema>? fields, String? foreignTypeDefinition, GeneratedColumn? generatedColumn, String? maxLength, String? mode, String? name, TableFieldSchemaPolicyTags? policyTags, String? precision, TableFieldSchemaRangeElementType? rangeElementType, String? roundingMode, String? scale, String? timestampPrecision, String? type})

TableFieldSchema.fromJson(Map json_)

Properties

categories ↔ TableFieldSchemaCategories?

Deprecated.

getter/setter pair

collation ↔ String?

Field collation can be set only when the type of field is STRING.

getter/setter pair

dataGovernanceTagsInfo ↔ TableFieldSchemaDataGovernanceTagsInfo?

Specifies the data governance tags on this field.

getter/setter pair

dataPolicies ↔ List<DataPolicyOption>?

Data policies attached to this field, used for field-level access control.

getter/setter pair

dataPolicyList ↔ DataPolicyList?

Specifies data policies attached to this field, used for field-level access control.

getter/setter pair

defaultValueExpression ↔ String?

A SQL expression to specify the default value for this field.

getter/setter pair

description ↔ String?

The field description.

getter/setter pair

fields ↔ List<TableFieldSchema>?

Describes the nested schema fields if the type property is set to RECORD.

getter/setter pair

foreignTypeDefinition ↔ String?

Definition of the foreign data type.

getter/setter pair

generatedColumn ↔ GeneratedColumn?

Definition of how values are generated for the field.

getter/setter pair

hashCode → int

The hash code for this object.

no setter, inherited

maxLength ↔ String?

Maximum length of values of this field for STRINGS or BYTES.

getter/setter pair

mode ↔ String?

The field mode.

getter/setter pair

name ↔ String?

The field name.

getter/setter pair

policyTags ↔ TableFieldSchemaPolicyTags?

The policy tags attached to this field, used for field-level access control.

getter/setter pair

precision ↔ String?

Precision (maximum number of total digits in base 10) and scale (maximum number of digits in the fractional part in base 10) constraints for values of this field for NUMERIC or BIGNUMERIC.

getter/setter pair

rangeElementType ↔ TableFieldSchemaRangeElementType?

Represents the type of a field element.

getter/setter pair

roundingMode ↔ String?

Specifies the rounding mode to be used when storing values of NUMERIC and BIGNUMERIC type.

getter/setter pair

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

scale ↔ String?

See documentation for precision.

getter/setter pair

timestampPrecision ↔ String?

Precision (maximum number of total digits in base 10) for seconds of TIMESTAMP type.

getter/setter pair

type ↔ String?

The field data type.

getter/setter pair

Methods

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

toJson() → Map<String, dynamic>

toString() → String

A string representation of this object.

inherited

Operators

operator ==(Object other) → bool

The equality operator.

inherited