BatchProcessingService

Implements IBatchProcessingService, tracking the last successful run date for named batch modules so batch jobs can resume from where they left off. It depends only on IUnitOfWork for BatchProcessLog repository access.

Purpose

• Retrieves the recorded last-run date for a named batch module, or a caller-supplied default when no record exists yet.
• Inserts or updates a module's run-date record within a transaction.

Context

• Namespace: SAIF.Services.BatchProcessing
• Assembly/package: SAIF.Services (packaged inside the SAIF.SAIFCode.Core NuGet package)

Public members

Member	Signature	Purpose
BatchProcessingService(...)	public BatchProcessingService(IUnitOfWork unitOfWork)	Validates unitOfWork is non-null via Enforce.ArgumentNotNull and wires in a cached BatchProcessLog repository.
GetRunDate	public DateTime GetRunDate(string moduleName, DateTime defaultValue)	Returns the recorded RunDate for the named module, or defaultValue if no BatchProcessLog row exists for it.
UpdateRunDate	public void UpdateRunDate(string moduleName, DateTime runDate)	Within a transaction, inserts a new BatchProcessLog row for the module if none exists, or updates the existing row's RunDate.

Behavioral notes

• UpdateRunDate performs an upsert keyed on moduleName: it looks up the existing row and either adds or updates, sparing callers from having to know whether the module has run before.
• The repository instance is resolved once in the constructor and reused for all subsequent calls on the service instance.

Sources

• Services/SAIF.Services/BatchProcessing/BatchProcessingService.cs