RLMSortDescriptor

@interface 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 the query engine. RLMSortDescriptor instances are immutable.

Properties

  • The name of the property which this sort descriptor orders results by.

    Declaration

    Objective‑C

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

    Swift

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

    Declaration

    Objective‑C

    @property (readonly, nonatomic) BOOL ascending;

    Swift

    var ascending: Bool { get }
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Methods

  • Returns a new sort descriptor for the given property name and order.

    Declaration

    Objective‑C

    + (nonnull instancetype)sortDescriptorWithProperty:
                            (nonnull NSString *)propertyName
                                         ascending:(BOOL)ascending;

    Swift

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

    Declaration

    Objective‑C

    - (nonnull instancetype)reversedSortDescriptor;

    Swift

    func reversedSortDescriptor() -> Self
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