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https://github.com/linksplatform/data.doublets

LinksPlatform's Platform.Data.Doublets Class Library
https://github.com/linksplatform/data.doublets

associative-model linksplatform

Last synced: 9 days ago
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LinksPlatform's Platform.Data.Doublets Class Library

Host: GitHub
URL: https://github.com/linksplatform/data.doublets
Owner: linksplatform
License: unlicense
Created: 2019-07-29T18:41:30.000Z (over 5 years ago)
Default Branch: main
Last Pushed: 2024-01-02T16:45:31.000Z (10 months ago)
Last Synced: 2024-05-29T20:57:00.028Z (5 months ago)
Topics: associative-model, linksplatform
Language: C#
Homepage: https://linksplatform.github.io/Data.Doublets/
Size: 184 MB
Stars: 14
Watchers: 4
Forks: 6
Open Issues: 114
Metadata Files:
- Readme: README.md
- Funding: .github/FUNDING.yml
- License: LICENSE

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README

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# [Data.Doublets](https://github.com/linksplatform/Data.Doublets) ([русская версия](README.ru.md))

LinksPlatform's Platform.Data.Doublets Class Library.

Namespace: [Platform.Data.Doublets](https://linksplatform.github.io/Data.Doublets/csharp/api/Platform.Data.Doublets.html)

Forked from: [Konard/LinksPlatform/Platform/Platform.Data.Doublets](https://github.com/Konard/LinksPlatform/tree/b0844d778ced60b22435e57342393031b26a2822/Platform/Platform.Data.Doublets)

NuGet package: [Platform.Data.Doublets](https://www.nuget.org/packages/Platform.Data.Doublets)

## [Example](https://github.com/linksplatform/Examples.Doublets.CRUD.DotNet) | [Run .NET fiddle](https://dotnetfiddle.net/Y7Zvt0)

```C#

using System;

using Platform.Data;

using Platform.Data.Doublets;

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

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

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

// A creation of the doublet link: 

var link = links.Create();

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

var any = links.Constants.Any; // Means any link address or no restriction on link address

// Arguments of the query are interpreted as restrictions

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

links.Each((link) => {

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

    return links.Constants.Continue;

}, query);

// The link's content reset:

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

// The link deletion:

links.Delete(link);

```

## [SQLite vs Doublets](https://github.com/linksplatform/Comparisons.SQLiteVSDoublets)

[![Image with result of performance comparison between SQLite and Doublets.](https://raw.githubusercontent.com/linksplatform/Documentation/master/doc/Examples/sqlite_vs_doublets_performance.png "Result of performance comparison between SQLite and Doublets")](https://github.com/linksplatform/Comparisons.SQLiteVSDoublets)

## [Documentation](https://linksplatform.github.io/Data.Doublets)

*   Interface [ILinks\](https://linksplatform.github.io/Data/csharp/api/Platform.Data.ILinks-2.html).

*   Interface [ILinks\](https://linksplatform.github.io/Data.Doublets/csharp/api/Platform.Data.Doublets.ILinks-1.html).

*   Class [UnitedMemoryLinks\](https://linksplatform.github.io/Data.Doublets/csharp/api/Platform.Data.Doublets.Memory.United.Generic.UnitedMemoryLinks-1.html).

[PDF file](https://linksplatform.github.io/Data.Doublets/csharp/Platform.Data.Doublets.pdf) with code for e-readers.

## Dependency graph [C#]

[![C# dependency graph SVG image](https://raw.github.com/linksplatform/Documentation/master/doc/Dependencies/Platform.Data.Doublets.svg?sanitize=true)](https://raw.githubusercontent.com/linksplatform/Documentation/master/doc/Dependencies/Platform.Data.Doublets.svg?sanitize=true)

## Dependency graph [C++]

[![C++ dependency graph SVG image](https://raw.github.com/linksplatform/Documentation/master/doc/Dependencies/Platform.Data.Doublets.cpp.svg?sanitize=true)](https://raw.githubusercontent.com/linksplatform/Documentation/master/doc/Dependencies/Platform.Data.Doublets.cpp.svg?sanitize=true)

## Depend on

*   [Platform.Random](https://github.com/linksplatform/Random)

*   [Platform.Timestamps](https://github.com/linksplatform/Timestamps)

*   [Platform.Incrementers](https://github.com/linksplatform/Incrementers)

*   [Platform.Collections.Methods](https://github.com/linksplatform/Collections.Methods)

*   [Platform.Singletons](https://github.com/linksplatform/Singletons)

*   [Platform.Memory](https://github.com/linksplatform/Memory)

*   [Platform.Data](https://github.com/linksplatform/Data)

## Support

Ask questions at [stackoverflow.com/tags/links-platform](https://stackoverflow.com/tags/links-platform) (or with tag `links-platform`) to get our free support.

You can also get real-time support on [our official Discord server](https://discord.gg/eEXJyjWv5e).