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# PHPersistentChangeFetchResult

An object that represents a fetch result and allows you to enumerate a very large set of change records.

```
class PHPersistentChangeFetchResult
```

## Topics

### Performing Operations with Objects in a Fetch Request

[`- (void) enumerateChangesWithBlock:(void (^)(PHPersistentChange *change, BOOL *stop)) block;`](/documentation/Photos/PHPersistentChangeFetchResult/enumerateChangesWithBlock:)

Executes the block you specify by using the objects in the fetch result.

[`class PHPersistentChange`](/documentation/Photos/PHPersistentChange)

An object that represents a change in the Photos library, and allows for requesting local identifiers that identify the changes for a library object.

## Relationships

### Conforms To

[`Escapable`](/documentation/Swift/Escapable)

[`Copyable`](/documentation/Swift/Copyable)

[`CustomStringConvertible`](/documentation/Swift/CustomStringConvertible)

[`Sequence`](/documentation/Swift/Sequence)

[`CustomDebugStringConvertible`](/documentation/Swift/CustomDebugStringConvertible)

[`Equatable`](/documentation/Swift/Equatable)

[`CVarArg`](/documentation/Swift/CVarArg)

[`NSObjectProtocol`](/documentation/ObjectiveC/NSObjectProtocol)

[`Hashable`](/documentation/Swift/Hashable)

### Inherits From

[`NSObject-swift.class`](/documentation/ObjectiveC/NSObject-swift.class)

---

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