using System;

using Platform.Data;

using Platform.Data.Doublets;

using Platform.Data.Doublets.Memory.United.Generic;

​

// A doublet links store is mapped to the "db.links" file:

using var links = new UnitedMemoryLinks<uint>("db.links");

​

// Creating a doublet link: 

var link = links.Create();

​

// The link is updated to reference itself twice (as a source and as a target):

// The passed arguments are: an updated address, a new source, and a new target

link = links.Update(link, newSource: link, newTarget: link);

​

// Read operations:

Console.WriteLine($"The number of links in the data store is {links.Count()}.");

Console.WriteLine("Data store contents:");

// Means any link address or that there is no restriction on link address

var any = links.Constants.Any; 

// The arguments of a query are restrictions: on address, on source, on target

var query = new Link<uint>(index: any, source: any, target: any);

links.Each((link) => {

    Console.WriteLine(links.Format(link));

    return links.Constants.Continue;

}, query);

​

// Cleaning (resetting) the contents of the link:

link = links.Update(link, newSource: default, newTarget: default);

​

// Removing the link

links.Delete(link);