Processes all eligible records for a single entity configuration. Throws before any record is read when the configured DriverClass is not registered.
The ArchiveConfigurationEntity record defining which entity/fields to archive
The parent ArchiveConfiguration record
The current ArchiveRun record for logging
Initialized storage manager for writing documents; null when StorageMode is 'Purge'
User context for all database operations
Aggregated counts and bytes for this entity
Handles batch processing of records for a single entity within an archive run. Resolves the appropriate driver, queries eligible records, and processes them in configurable batch sizes.