SQLiteKeyValueStore

final class SQLiteKeyValueStore

Basic SQLite Key/Value store with Keys as TEXT and Values stored as BLOB

  • Declaration

    Swift

    init(with directoryURL: URL, key: String) throws

    Parameters

    url

    URL on disk where the FMDB should be initialized If any part of the init fails no Datbase will be created If the Database can’t be accessed with the key the currentFile will be reset

  • Undocumented

    Declaration

    Swift

    deinit

Internal database modifications

  • Removes all key/value pairs from the Store and creates a new database with a given key

    Declaration

    Swift

    func clearAll(key: String?) throws

Public

  • Removes most key/value pairs.

    Keys whose values are not removed:

    • developerSubmissionBaseURLOverride
    • developerDistributionBaseURLOverride
    • developerVerificationBaseURLOverride

    Declaration

    Swift

    func flush() throws

  • Declaration

    Swift

    subscript(key: String) -> Data? { get set }

    Parameters

    key

    key index to look in the DB for

    Return Value

    Data if the key/value pair is found (even if the value BLOB is empty), or nil if no value exists for the given key.

  • Convenience subscript to use with Codable types, uses JSON encoder/decoder with no additional configuration.

    Attention

    Errors encountered during encoding with JSONEncoder silently fail (but are logged)! If encoding fails, fetching the value for that key will result in empty Data

    Declaration

    Swift

    subscript<Model>(key: String) -> Model? where Model : Decodable, Model : Encodable { get set }

    Return Value

    Model decoded with a JSONDecoder, or nil if decoding fails.