public static GetByOperation GetBy <TKey>(this LightningTransaction txn, LightningDatabase db, TKey key)
{
var valueBytes = txn.GetRawValue(db, key);
return(new GetByOperation(db, valueBytes));
}
/// <summary>
/// Gets a value by its key as a byte array.
/// </summary>
/// <typeparam name="TKey">Key type.</typeparam>
/// <param name="txn">Transaction.</param>
/// <param name="key">Key.</param>
/// <returns>Value as a byte array or null if not exists.</returns>
public static byte[] GetRawValue <TKey>(this LightningTransaction txn, TKey key)
{
return(txn.GetRawValue(txn.OpenDatabase(), key));
}
