---
title: "Extbase reference"
manual: "TYPO3 Explained"
version: "12.4"
permalink: "https://docs.typo3.org/permalink/t3coreapi:extbase-reference@12.4"
source: "ExtensionArchitecture/Extbase/Reference/Index.rst"
rendered: "2026-10-21T15:29:37+00:00"
---

# Extbase reference {#extbase-reference}

-   [Domain](https://docs.typo3.org/permalink/t3coreapi:domain-concept-in-extbase@12.4)
    -   [Extbase model - extending AbstractEntity](https://docs.typo3.org/permalink/t3coreapi:extbase-model-extending-abstractentity@12.4)
        -   [Persistence](https://docs.typo3.org/permalink/t3coreapi:persistence@12.4)
        -   [Relations](https://docs.typo3.org/permalink/t3coreapi:relations-between-extbase-models@12.4)
        -   [Hydrating](https://docs.typo3.org/permalink/t3coreapi:hydrating-thawing-objects-of-extbase-models@12.4)
        -   [Localization](https://docs.typo3.org/permalink/t3coreapi:localization-of-extbase-models@12.4)
    -   [Repository](https://docs.typo3.org/permalink/t3coreapi:repository@12.4)
-   [Controller](https://docs.typo3.org/permalink/t3coreapi:extbase-controller-1@12.4)
    -   [ActionController](https://docs.typo3.org/permalink/t3coreapi:actioncontroller@12.4)
    -   [Error action](https://docs.typo3.org/permalink/t3coreapi:error-action@12.4)
    -   [Property mapping](https://docs.typo3.org/permalink/t3coreapi:property-mapping@12.4)
    -   [Type converters](https://docs.typo3.org/permalink/t3coreapi:type-converters@12.4)
-   [View](https://docs.typo3.org/permalink/t3coreapi:view@12.4)
-   [URI builder (Extbase)](https://docs.typo3.org/permalink/t3coreapi:uri-builder-extbase@12.4)
-   [Registration of frontend plugins](https://docs.typo3.org/permalink/t3coreapi:registration-of-frontend-plugins@12.4)
-   [TypoScript configuration](https://docs.typo3.org/permalink/t3coreapi:typoscript-configuration@12.4)
-   [Annotations](https://docs.typo3.org/permalink/t3coreapi:annotations@12.4)
-   [Validation](https://docs.typo3.org/permalink/t3coreapi:validation@12.4)
    -   [Custom Validator](https://docs.typo3.org/permalink/t3coreapi:custom-extbase-validator-implementation@12.4)
-   [File upload](https://docs.typo3.org/permalink/t3coreapi:file-upload@12.4)
-   [Caching](https://docs.typo3.org/permalink/t3coreapi:caching@12.4)
-   [Localization](https://docs.typo3.org/permalink/t3coreapi:localization@12.4)
-   [URI arguments and reserved keywords](https://docs.typo3.org/permalink/t3coreapi:uri-arguments-and-reserved-keywords@12.4)