Index class

Annotate properties to build an index.

Annotations

• @Target({TargetKind.field, TargetKind.getter})

Constructors

Index({String? name, List<String> composite = const [], bool unique = false, bool hash = false})

Annotate properties to build an index.

const

Properties

composite → List<String>

Specify up to two other properties to build a composite index.

final

hash → bool

Stores the hash of the value(s) in the index. This saves space and increases performance, but only equality queries are supported. You should always use this if you only want to guarantee uniqueness.

final

hashCode → int

The hash code for this object.

no setter, inherited

name → String?

Name of the index. By default, the names of the properties are concatenated using "_"

final

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

unique → bool

A unique index ensures the index does not contain any duplicate values. If you attempt to insert an object that conflicts with an existing object that has the same value for the indexed property, the existing object will be overwritten.

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