Deprecation: #90260 - ResourceFactory::getInstance pseudo-factory

See Issue #90260

Description

The method ResourceFactory::getInstance() acts as a wrapper for the constructor which originally was meant as a performance improvement as pseudo-singleton concept in TYPO3 v4.7.

However, ResourceFactory was never optimized and now with Dependency Injection, ResourceFactory can be used directly.

Therefore the method has been marked as deprecated.

Impact

Calling ResourceFactory::getInstance() will trigger a PHP E_USER_DEPRECATED error.

Affected Installations

Any TYPO3 installation with custom PHP code calling the method.

Migration

Check TYPO3’s “Extension Scanner” in the Install Tool if you’re affected and replace with constructor injection via Dependency Injection if possible, or use GeneralUtility::makeInstance(ResourceFactory::class) instead.

The latter can already applied in earlier versions (TYPO3 v7 or higher) to ease optimal migration of this deprecation.