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NameTableStore is used for normalized data storage. It is a service that can convert a name into an ID (potentially assigning a new ID and storing the association in the database, if the name hasn't been used before) and back.

A separate instance of the service is used for each table. In core, these services can be obtained via NameTableStoreFactory . Currently used for the content_models , slot_roles and change_tag_def tables.