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NSFetchRequestExpression

An expression that evaluates the result of a fetch request on a managed object context.

Declaration

class NSFetchRequestExpression

Overview

NSFetchRequestExpression inherits from NSExpression, which provides most of the basic behavior. The first argument must be an expression which evaluates to an NSFetchRequest object, and the second must be an expression which evaluates to an NSManagedObjectContext object. If you simply want the count for the request, the countOnly argument should be true.

Topics

Creating a Fetch Request Expression

Examining a Fetch Request Expression

Constants

See Also

Specifying Fetch Constraints