public function DataDefinition::isList

public DataDefinition::isList()

Returns whether the data is multi-valued, i.e. a list of data items.

This is equivalent to checking whether the data definition implements the \Drupal\Core\TypedData\ListDefinitionInterface interface.

Return value

bool Whether the data is multi-valued.

Overrides DataDefinitionInterface::isList

File

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

Class

DataDefinition

A typed data definition class for defining data based on defined data types.

Namespace

Drupal\Core\TypedData

Code

public function isList() {
  return ($this instanceof ListDataDefinitionInterface);
}