---
title: migrationManagerClass()
framework: coredata
role: symbol
role_heading: Type Method
path: coredata/nspersistentstore/migrationmanagerclass()
---

# migrationManagerClass()

Returns the migration manager class for this store class.

## Declaration

```swift
class func migrationManagerClass() -> AnyClass
```

## Return Value

Return Value The NSMigrationManager class for this store class

## Discussion

Discussion In a subclass of NSPersistentStore, you can override this to provide a custom migration manager subclass (for example, to take advantage of store-specific functionality to improve migration performance).