The refactored code is a first step to become able to provide plugins for backends for storing content in different systems. Instead of using switch statements to distinguish between backends "file", "lob" and "text", procs with a suffix of the storage name are provided now. Essentially, by providing process with additional suffixes can be used to provide additional storage systems.
In addition, the deletion handling was also refactored such that the non-scalable functions iterating over all items (such as "cr_check_orphaned_files") will become obsolete. This is imporant for content repositories with double and triple digit terabytes.