abstract class FieldItem in Drupal 9

Defines the base plugin for deriving data types for field types.

Note that the class only register the plugin, and is actually never used. \Drupal\Core\Field\FieldItemBase is available for use as base class.

Plugin annotation

@DataType(
  id = "field_item",
  label = @Translation("Field item"),
  list_class = "\Drupal\Core\Field\FieldItemList",
  deriver = "Drupal\Core\Field\Plugin\DataType\Deriver\FieldItemDeriver"
)

Hierarchy

• class \Drupal\Core\Field\Plugin\DataType\FieldItem

File

core/lib/Drupal/Core/Field/Plugin/DataType/FieldItem.php, line 18

Namespace

Drupal\Core\Field\Plugin\DataType

abstract class FieldItem {

}