Trait Atk4\Data\Model\JoinLinkTrait

Atk4\Data\Model\JoinLinkTrait
- Atk4\Data\Reference\HasOne uses FieldPropertiesTrait, JoinLinkTrait
  - Atk4\Data\Reference\HasOneSql
- Atk4\Data\Model\Join uses DiContainerTrait, InitializerTrait, JoinLinkTrait, TrackableTrait
  - Atk4\Data\Persistence\Array_\Join
  - Atk4\Data\Persistence\Sql\Join
- Atk4\Data\Field implements Expressionable uses DiContainerTrait, FieldPropertiesTrait, JoinLinkTrait, ReadableCaptionTrait, TrackableTrait

Located at data/src/Model/JoinLinkTrait.php

Methods
`public`	`hasJoin(): bool`	#
`public`	`getJoin(): Join`	#

Properties
`protected`	`?string`	`$joinName = null`	#