FieldType.php

<?php

namespace Drupal\Core\Field\Annotation;

use Drupal\Core\TypedData\Annotation\DataType;

/**
 * Defines a FieldType annotation object.
 *
 * Additional annotation keys for field types can be defined in
 * hook_field_info_alter().
 *
 * @ingroup field_types
 *
 * @Annotation
 */
class FieldType extends DataType {
    
    /**
     * The plugin ID.
     *
     * @var string
     */
    public $id;
    
    /**
     * The name of the module providing the field type plugin.
     *
     * @var string
     */
    public $module;
    
    /**
     * The human-readable name of the field type.
     *
     * @ingroup plugin_translatable
     *
     * @var \Drupal\Core\Annotation\Translation
     */
    public $label;
    
    /**
     * A short human readable description for the field type.
     *
     * @ingroup plugin_translatable
     *
     * @var \Drupal\Core\Annotation\Translation
     */
    public $description;
    
    /**
     * The category under which the field type should be listed in the UI.
     *
     * @ingroup plugin_translatable
     *
     * @var \Drupal\Core\Annotation\Translation
     */
    public $category = '';
    
    /**
     * The plugin_id of the default widget for this field type.
     *
     * This widget must be available whenever the field type is available (i.e.
     * provided by the field type module, or by a module the field type module
     * depends on).
     *
     * @var string
     */
    public $default_widget;
    
    /**
     * The plugin_id of the default formatter for this field type.
     *
     * This formatter must be available whenever the field type is available (i.e.
     * provided by the field type module, or by a module the field type module
     * depends on).
     *
     * @var string
     */
    public $default_formatter;
    
    /**
     * A boolean stating that fields of this type cannot be created through the UI.
     *
     * @var bool
     */
    public $no_ui = FALSE;
    
    /**
     * {@inheritdoc}
     */
    public $list_class;
    
    /**
     * An integer defining a fixed cardinality for this field type.
     *
     * If this value is not set, cardinality can be configured in the field UI.
     *
     * @var int|null
     */
    public $cardinality;

}