public static FieldItemInterface::propertyDefinitions(FieldStorageDefinitionInterface $field_definition)
Defines field item properties.
Properties that are required to constitute a valid, non-empty item should be denoted with \Drupal\Core\TypedData\DataDefinition::setRequired().
Return value
\Drupal\Core\TypedData\DataDefinitionInterface[] An array of property definitions of contained properties, keyed by property name.
See also
\Drupal\Core\Field\BaseFieldDefinition
File
core/lib/Drupal/Core