See :issue:`84374`
This file is about third party usage (consumer that call the class as well as signals or hooks depending on it) of :php:`TYPO3\CMS\Backend\Controller\SimpleDataHandlerController`.
A series of class properties has been set to protected. They will throw deprecation warnings if called public from outside:
- :php:`flags`
- [not scanned] :php:`data`
- [not scanned] :php:`cmd`
- :php:`mirror`
- :php:`cacheCmd`
- [not scanned] :php:`redirect`
- :php:`CB`
- [not scanned] :php:`tce`
All methods not used as entry points by :php:`TYPO3\CMS\Backend\Http\RouteDispatcher` will be removed or set to protected in v10 and throw deprecation warnings if used from a third party:
- [not scanned] :php:`main()`
- :php:`initClipboard()`
Calling above method on an instance of :php:`SimpleDataHandlerController` will throw a deprecation warning in v9 and a PHP fatal in v10.
The extension scanner will find all usages, but may also find some false positives. In general all extensions that set properties or call methods except :php:`mainAction()` are affected.
In general, extensions should not instantiate and re-use controllers of the core. Existing usages should be rewritten to be free of calls like these.
.. index:: Backend, PHP-API, PartiallyScanned