MaplyTileFetchRequest

Objective-C

@interface MaplyTileFetchRequest : NSObject

Swift

class MaplyTileFetchRequest : NSObject

Generic Tile fetcher request.

A single request for a single tile of data from a single source. The tile fetcher will… fetch this and call the success or failure callback.

  • Priority before importance. Less is more important.

    Declaration

    Objective-C

    @property (nonatomic) int priority;

    Swift

    var priority: Int32 { get set }

  • How important this is to us. Probably screen space.

    Declaration

    Objective-C

    @property (nonatomic) float importance;

    Swift

    var importance: Float { get set }

  • If all other values are equal, sort by this. It keeps requests we’re waiting for grouped together

    Declaration

    Objective-C

    @property (nonatomic) int group;

    Swift

    var group: Int32 { get set }

  • Tile ID for this tile

    Declaration

    Objective-C

    @property (nonatomic) MaplyTileID tileID;

    Swift

    var tileID: MaplyTileID { get set }

  • An object representing the tile source. Used for sorting. Not accessed by the fetcher.

    Declaration

    Objective-C

    @property (nonatomic, weak, nullable) id tileSource;

    Swift

    weak var tileSource: AnyObject? { get set }

  • This is requested from a TileInfo object by a loader and then passed along to the TileFetcher. TileFetchers expect certain objects. The RemoteTileFetcher wants a RemoteFetchInfo object and will check. Other fetchers will want other things.

    Declaration

    Objective-C

    @property (nonatomic, strong, nonnull) id fetchInfo;

    Swift

    var fetchInfo: Any { get set }

  • Tile Fetcher success callback.

    Called on a new dispatch queue and won’t be marked as loaded until it returns. This is a good way to limit how many things are loading/parsing at the same time.

    Declaration

    Objective-C

    @property (nonatomic, nullable) void (^) (MaplyTileFetchRequest *_Nonnull, id _Nonnull) success;

    Swift

    var success: ((MaplyTileFetchRequest, Any) -> Void)? { get set }

  • Tile Fetcher failure callback.

    Declaration

    Objective-C

    @property (nonatomic, nullable) void (^) (MaplyTileFetchRequest *_Nonnull, NSError *_Nonnull) failure;

    Swift

    var failure: ((MaplyTileFetchRequest, Error) -> Void)? { get set }