Implemented by

craft\base\Component, craft\base\Element, craft\base\ElementAction, craft\base\ElementInterface, craft\base\Field, craft\base\FlysystemVolume, craft\base\SavableComponent, craft\base\SavableComponentInterface, craft\base\Utility, craft\base\UtilityInterface, craft\base\Volume, craft\base\Widget, craft\elements\Asset, craft\elements\Category, craft\elements\Entry, craft\elements\GlobalSet, craft\elements\MatrixBlock, craft\elements\Tag, craft\elements\User, craft\elements\actions\CopyReferenceTag, craft\elements\actions\Delete, craft\elements\actions\DeleteAssets, craft\elements\actions\DeleteUsers, craft\elements\actions\DownloadAssetFile, craft\elements\actions\Edit, craft\elements\actions\EditImage, craft\elements\actions\NewChild, craft\elements\actions\PreviewAsset, craft\elements\actions\RenameFile, craft\elements\actions\ReplaceFile, craft\elements\actions\SetStatus, craft\elements\actions\SuspendUsers, craft\elements\actions\UnsuspendUsers, craft\elements\actions\View, craft\fields\Assets, craft\fields\BaseOptionsField, craft\fields\BaseRelationField, craft\fields\Categories, craft\fields\Checkboxes, craft\fields\Color, craft\fields\Date, craft\fields\Dropdown, craft\fields\Email, craft\fields\Entries, craft\fields\Lightswitch, craft\fields\Matrix, craft\fields\MissingField, craft\fields\MultiSelect, craft\fields\Number, craft\fields\PlainText, craft\fields\RadioButtons, craft\fields\Table, craft\fields\Tags, craft\fields\Url, craft\fields\Users, craft\mail\transportadapters\BaseTransportAdapter, craft\mail\transportadapters\Gmail, craft\mail\transportadapters\Sendmail, craft\mail\transportadapters\Smtp, craft\models\BaseEntryRevisionModel, craft\models\EntryDraft, craft\models\EntryVersion, craft\utilities\AssetIndexes, craft\utilities\ClearCaches, craft\utilities\DbBackup, craft\utilities\DeprecationErrors, craft\utilities\FindAndReplace, craft\utilities\Migrations, craft\utilities\PhpInfo, craft\utilities\SearchIndexes, craft\utilities\SystemReport, craft\utilities\Updates, craft\volumes\Local, craft\volumes\MissingVolume, craft\volumes\Temp, craft\widgets\CraftSupport, craft\widgets\Feed, craft\widgets\MissingWidget, craft\widgets\NewUsers, craft\widgets\QuickPost, craft\widgets\RecentEntries, craft\widgets\Updates

Available since version

3.0

Source Code

https://github.com/craftcms/cms/blob/master/src/base/ComponentInterface.php

ComponentInterface defines the common interface to be implemented by Craft component classes.

A class implementing this interface should also implement yii\base\Arrayable.