TomTom SDK for iOS CachingConfiguration

CachingConfiguration

public struct CachingConfiguration

Configuration parameters for caching navigation map data that is stored in NavigationTileStore. It configures in-memory tile store size and CacheStorageConfiguration.

  • Creates an instance of CachingConfiguration.

    Declaration

    Swift

    public init(
    cacheMemoryMaxSize: Measurement<UnitInformationStorage> = Defaults.cacheMemoryMaxSize,
    cacheStorageConfiguration: CacheStorageConfiguration? = .init()
)

    Parameters

    cacheMemoryMaxSize

    Size limit for in-memory tile store. The parameter defaults to Defaults.cacheMemoryMaxSize. It behaves like a soft limit, ensuring that essential data is preserved in memory, even if it surpasses the specified limit. A very small limit may lead to increased disk reading, as tiles are promptly removed from memory once they are no longer required immediately. An excessively high limit may result in tiles occupying a significant amount of memory over an extended period.
    cacheStorageConfiguration

    Persistent cache storage configuration. CacheStorageConfiguration configures path and maximum disk size of the persistent cache storage. If the parameter is omitted, the default persistent cache storage configuration will be used. If the parameter is set to nil, persistent cache storage is NOT used.

  • Creates an instance of CachingConfiguration.

    Important

    This is a Public Preview API. It may be changed or removed at any time.

    Declaration

    Swift

    public init(
    storageConfiguration: CacheStorageConfiguration = .init(),
    maxMemorySize: Measurement<UnitInformationStorage> = Defaults.cacheMemoryMaxSize
)

    Parameters

    storageConfiguration

    Persistent cache storage configuration. CacheStorageConfiguration configures path and maximum disk size of the persistent cache storage.
    maxMemorySize

    Size limit for in-memory tile store. The parameter defaults to Defaults.cacheMemoryMaxSize. It behaves like a soft limit, ensuring that essential data is preserved in memory, even if it surpasses the specified limit. A very small limit may lead to increased disk reading, as tiles are promptly removed from memory once they are no longer required immediately. An excessively high limit may result in tiles occupying a significant amount of memory over an extended period.

  • Creates a default instance of CachingConfiguration.

    Important

    This is a Public Preview API. It may be changed or removed at any time.

    Declaration

    Swift

    public init()

  • Default value constants for CachingConfiguration parameters.

    See more

    Declaration

    Swift

    public enum Defaults

  • Size limit for in-memory store. It behaves like a soft limit, ensuring that essential data is preserved in memory, even if it surpasses the specified limit. A very small limit may lead to increased disk reading, as tiles are promptly removed from memory once they are no longer required immediately. An excessively high limit may result in tiles occupying a significant amount of memory over an extended period.

    The parameter defaults to Defaults.cacheMemoryMaxSize.

    Declaration

    Swift

    public var cacheMemoryMaxSize: Measurement<UnitInformationStorage>

  • Persistent cache storage configuration. CacheStorageConfiguration configures path and maximum disk size of the persistent cache storage. If the parameter is omitted, the default persistent cache storage configuration is used. If the parameter is set to nil, persistent cache storage is NOT used.

    Declaration

    Swift

    public var cacheStorageConfiguration: CacheStorageConfiguration?

  • Persistent cache storage configuration. CacheStorageConfiguration configures path and maximum disk size of the persistent cache storage. If the parameter is omitted, the default persistent cache storage configuration is used.

    Important

    This is a Public Preview API. It may be changed or removed at any time.

    Declaration

    Swift

    public var storageConfiguration: CacheStorageConfiguration