SyncLogRepository

Static methods for sync log operations. FP-style - no instance state, pure functions. Implements spec Section 7 (Unified Change Log) and Section 12 (Batching).

public static class SyncLogRepository

Methods

FetchChanges(SqliteConnection, long, int)

public static Result<IReadOnlyList<SyncLogEntry>, SyncError> FetchChanges(SqliteConnection connection, long fromVersion, int batchSize)

Fetches a batch of changes from the sync log.

Parameters:

Name	Type	Description
`connection`	`SqliteConnection`	SQLite connection.
`fromVersion`	`Int64`	Fetch changes with version greater than this.
`batchSize`	`Int32`	Maximum number of changes to fetch.

Returns: SyncError> - List of sync log entries or database error.

GetLastServerVersion(SqliteConnection)

public static Result<long, SyncError> GetLastServerVersion(SqliteConnection connection)

Gets the last server version from sync state.

Parameters:

Name	Type	Description
`connection`	`SqliteConnection`	SQLite connection.

Returns: SyncError> - Last server version or database error.

UpdateLastServerVersion(SqliteConnection, long)

public static Result<bool, SyncError> UpdateLastServerVersion(SqliteConnection connection, long version)

Updates the last server version in sync state.

Parameters:

Name	Type	Description
`connection`	`SqliteConnection`	SQLite connection.
`version`	`Int64`	New last server version.

Returns: SyncError> - Success or database error.

GetMaxVersion(SqliteConnection)

public static Result<long, SyncError> GetMaxVersion(SqliteConnection connection)

Gets the maximum version in the sync log.

Parameters:

Name	Type	Description
`connection`	`SqliteConnection`	SQLite connection.

Returns: SyncError> - Max version or 0 if no entries.

GetMinVersion(SqliteConnection)

public static Result<long, SyncError> GetMinVersion(SqliteConnection connection)

Gets the minimum version in the sync log. Used for tombstone retention checks (spec Section 13.6).

Parameters:

Name	Type	Description
`connection`	`SqliteConnection`	SQLite connection.

Returns: SyncError> - Min version or 0 if no entries.

GetEntryCount(SqliteConnection)

public static Result<long, SyncError> GetEntryCount(SqliteConnection connection)

Gets total count of entries in the sync log.

Parameters:

Name	Type	Description
`connection`	`SqliteConnection`	SQLite connection.

Returns: SyncError> - Count or database error.