RLMSortDescriptor

Objective-C

@interface RLMSortDescriptor : NSObject

Swift

class RLMSortDescriptor : NSObject

An RLMSortDescriptor stores a property name and a sort order for use with sortedResultsUsingDescriptors:. It is similar to NSSortDescriptor, but supports only the subset of functionality which can be efficiently run by Realm’s query engine.

RLMSortDescriptor instances are immutable.

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Properties

  • The key path which the sort descriptor orders results by.

    Declaration

    Objective-C

    @property (nonatomic, readonly) NSString *_Nonnull keyPath;

    Swift

    var keyPath: String { get }
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  • Whether the descriptor sorts in ascending or descending order.

    Declaration

    Objective-C

    @property (nonatomic, readonly) BOOL ascending;

    Swift

    var ascending: Bool { get }
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Methods

  • Returns a new sort descriptor for the given key path and sort direction.

    Declaration

    Objective-C

    + (nonnull instancetype)sortDescriptorWithKeyPath:(nonnull NSString *)keyPath
                                        ascending:(BOOL)ascending;

    Swift

    convenience init(keyPath: String, ascending: Bool)
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  • Returns a copy of the receiver with the sort direction reversed.

    Declaration

    Objective-C

    - (nonnull instancetype)reversedSortDescriptor;

    Swift

    func reversed() -> Self
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