function DataDefinitionInterface::isRequired

Same name in other branches
  1. 9 core/lib/Drupal/Core/TypedData/DataDefinitionInterface.php \Drupal\Core\TypedData\DataDefinitionInterface::isRequired()
  2. 10 core/lib/Drupal/Core/TypedData/DataDefinitionInterface.php \Drupal\Core\TypedData\DataDefinitionInterface::isRequired()
  3. 11.x core/lib/Drupal/Core/TypedData/DataDefinitionInterface.php \Drupal\Core\TypedData\DataDefinitionInterface::isRequired()

Determines whether a data value is required.

For required data a non-NULL value is mandatory.

Return value

bool Whether a data value is required.

2 methods override DataDefinitionInterface::isRequired()
DataDefinition::isRequired in core/lib/Drupal/Core/TypedData/DataDefinition.php
Determines whether a data value is required.
FieldDefinitionInterface::isRequired in core/lib/Drupal/Core/Field/FieldDefinitionInterface.php
Returns whether the field can be empty.

File

core/lib/Drupal/Core/TypedData/DataDefinitionInterface.php, line 114

Class

DataDefinitionInterface
Interface for data definitions.

Namespace

Drupal\Core\TypedData

Code

public function isRequired();

Buggy or inaccurate documentation? Please file an issue. Need support? Need help programming? Connect with the Drupal community.