DP44/enriched-qwen3-coder-next/Common/DTS.CommonCore/Enums/Database.md

source_files, generated_at, model, schema_version, sha256

source_files	generated_at	model	schema_version	sha256
Common/DTS.CommonCore/Enums/Database/DbType.cs	2026-04-16T02:42:49.967232+00:00	Qwen/Qwen3-Coder-Next-FP8	1	c0a6812741ff89b5

Database

1. Purpose

This module defines the DbType enumeration, which categorizes database instances according to their deployment and access pattern—specifically distinguishing between databases that are exclusively remote, exclusively local, or a hybrid of both. It serves as a foundational type for configuring or routing data access logic within the DTS system, enabling consistent semantic interpretation of database type across the codebase.

2. Public Interface

The module exposes a single public type:

• DbType (enum)
  • RemoteOnly = 0: Indicates the database is accessible only via a remote connection (e.g., cloud or remote server).
  • LocalOnly = 1: Indicates the database is accessible only locally (e.g., embedded or on-disk instance on the same machine).
  • RemoteLocalHybrid = 2: Indicates the database supports both remote and local access modes, likely with logic to switch or synchronize between them.

3. Invariants

• The enum values are explicitly assigned integer constants (0, 1, 2) and must not be changed without considering serialization or persistence compatibility.
• Only the three defined values are valid; no other values are permitted by the type definition itself (though runtime casting from int could bypass this at compile time).
• No additional validation or runtime checks are present in this file to enforce usage constraints.

4. Dependencies

• No external dependencies: This file contains only a self-contained enum definition with no using statements or references to other types.
• Consumers: Based on namespace (DTS.Common.Enums.Database) and naming conventions, this type is likely referenced by higher-level configuration, data access, or connection management modules (e.g., DTS.CommonCore.Data, DTS.Server.Database, or similar), though such consumers are not visible in this source file.

5. Gotchas

• No validation or parsing logic: The enum does not include helper methods (e.g., TryParse, IsValid) or attributes (e.g., [Flags]), so callers must manually handle invalid values or parsing if needed.
• No documentation comments: The source lacks XML doc comments (e.g., /// <summary>), so semantic intent beyond the field names is not explicitly stated—e.g., it is unclear whether RemoteLocalHybrid implies active synchronization, fallback behavior, or dual-mode selection.
• Potential for misuse via casting: Since enums in C# allow casting from any int, invalid values (e.g., (DbType)99) are possible at runtime unless guarded elsewhere.
• None identified from source alone.