/// <summary>
///
/// </summary>
/// <param name="reader"></param>
/// <param name="dbFields">The list of the <see cref="DbField"/> objects to be used.</param>
/// <param name="dbSetting">The instance of <see cref="IDbSetting"/> object to be used.</param>
/// <returns></returns>
internal static Func <DbDataReader, TResult> Get(DbDataReader reader,
IEnumerable <DbField> dbFields = null,
IDbSetting dbSetting = null)
{
var key = GetKey(reader);
if (cache.TryGetValue(key, out var result) == false)
{
result = FunctionFactory.CompileDataReaderToType <TResult>(reader, dbFields, dbSetting);
cache.TryAdd(key, result);
}
return(result);
}