The source expression for the entity mapping.
SDKs
- iOS 3.0+
- macOS 10.5+
- Mac Catalyst 13.0+
- tvOS 9.0+
- watchOS 2.0+
Framework
- Core Data
Declaration
@property(strong) NSExpression *sourceExpression;
Discussion
The source expression is used to obtain the collection of managed objects to process through the mapping. The expression can be a fetch request expression, or any other expression that evaluates to a collection.