Model
Processor
Magento\CatalogSearch\Model\Indexer\Fulltext\Processor
What it does
This processor class manages the execution of Magento's catalog fulltext search indexer.
It provides a simplified interface for triggering reindexing of product search data, handling both full and partial reindex operations.
Developers use this when they need to programmatically update the search index after making changes to product data.