ChangeApplier

Applies changes to the local database with FK violation defer/retry. Implements spec Section 11 (Bi-Directional Sync Protocol).

public static class ChangeApplier

Methods

ApplyBatch(SyncBatch, string, int, Func<SyncLogEntry, Result<bool, SyncError>>, ILogger)

public static Result<BatchApplyResult, SyncError> ApplyBatch(SyncBatch batch, string myOriginId, int maxRetryPasses, Func<SyncLogEntry, Result<bool, SyncError>> applyChange, ILogger logger)

Applies a batch of changes with FK violation handling. Changes are applied in version order. FK violations are deferred and retried.

Parameters:

Name	Type	Description
`batch`	`SyncBatch`	The batch of changes to apply.
`myOriginId`	`String`	This replica's origin ID (to skip own changes).
`maxRetryPasses`	`Int32`	Maximum retry passes for deferred changes.
`applyChange`	`SyncError>>`	Function to apply a single change. Returns true on success, false on FK violation.
`logger`	`ILogger`	Logger for change application.

Returns: SyncError> - Result of applying the batch.

IsForeignKeyViolation(string)

public static bool IsForeignKeyViolation(string message)

Determines if an exception represents an FK constraint violation. Platform-specific implementations should override detection logic.

Parameters:

Name	Type	Description
`message`	`String`	Exception message to check.

Returns: Boolean - True if this is an FK violation.