Building the ISQLiteStorage interface

Now we must set up another class, which  will be used to control the queries performed on the database. Add a new file called ISQLiteStorage.cs into the Storage folder and implement the following:

public interface ISQLiteStorage
    {
         void CreateSQLiteAsyncConnection();
         Task CreateTable<T>(CancellationToken token) where T : class, IStorable, new();
         Task InsertObject<T>(T item, CancellationToken token) where T : class, IStorable, new();
         Task<IList<T>> GetTable<T>(CancellationToken token) where T : class, IStorable, new();
         Task<T> GetObject<T>(string key, CancellationToken token) where T : class, IStorable, new();
         Task ClearTable<T>(CancellationToken token) where T : class, IStorable, new();
         Task DeleteObjectByKey<T>(string key, CancellationToken token) where T : class, IStorable, new();
         void CloseConnection();
    }

The preceding...