---
title: "setQueryGenerationFrom(_:)"
framework: coredata
role: symbol
role_heading: Instance Method
path: "coredata/nsmanagedobjectcontext/setquerygenerationfrom(_:)"
---

# setQueryGenerationFrom(_:)

Sets the query generation this context should use.

## Declaration

```swift
func setQueryGenerationFrom(_ generation: NSQueryGenerationToken?) throws
```

## Mentioned in

Accessing data when the store changes

## See Also

### Managing concurrency

- [NSManagedObjectContextQueryGenerationKey](coredata/nsmanagedobjectcontextquerygenerationkey.md)
- [mergeChanges(fromRemoteContextSave:into:)](coredata/nsmanagedobjectcontext/mergechanges(fromremotecontextsave:into:).md)
- [automaticallyMergesChangesFromParent](coredata/nsmanagedobjectcontext/automaticallymergeschangesfromparent.md)
- [concurrencyType](coredata/nsmanagedobjectcontext/concurrencytype-swift.property.md)
- [mergePolicy](coredata/nsmanagedobjectcontext/mergepolicy.md)
- [queryGenerationToken](coredata/nsmanagedobjectcontext/querygenerationtoken.md)
- [transactionAuthor](coredata/nsmanagedobjectcontext/transactionauthor.md)
- [mergeChanges(fromContextDidSave:)](coredata/nsmanagedobjectcontext/mergechanges(fromcontextdidsave:).md)