TL.CollectionExtensionsLibrary 0.8.0

.NET 8.0 .NET Standard 2.0

dotnet add package TL.CollectionExtensionsLibrary --version 0.8.0

NuGet\Install-Package TL.CollectionExtensionsLibrary -Version 0.8.0

This command is intended to be used within the Package Manager Console in Visual Studio, as it uses the NuGet module's version of Install-Package.

<PackageReference Include="TL.CollectionExtensionsLibrary" Version="0.8.0" />

For projects that support PackageReference, copy this XML node into the project file to reference the package.

<PackageVersion Include="TL.CollectionExtensionsLibrary" Version="0.8.0" />
                    

                            Directory.Packages.props

<PackageReference Include="TL.CollectionExtensionsLibrary" />
                    

                            Project file

For projects that support Central Package Management (CPM), copy this XML node into the solution Directory.Packages.props file to version the package.

paket add TL.CollectionExtensionsLibrary --version 0.8.0

The NuGet Team does not provide support for this client. Please contact its maintainers for support.

#r "nuget: TL.CollectionExtensionsLibrary, 0.8.0"

#r directive can be used in F# Interactive and Polyglot Notebooks. Copy this into the interactive tool or source code of the script to reference the package.

#:package TL.CollectionExtensionsLibrary@0.8.0

#:package directive can be used in C# file-based apps starting in .NET 10 preview 4. Copy this into a .cs file before any lines of code to reference the package.

#addin nuget:?package=TL.CollectionExtensionsLibrary&version=0.8.0
                    

                            Install as a Cake Addin

#tool nuget:?package=TL.CollectionExtensionsLibrary&version=0.8.0
                    

                            Install as a Cake Tool

The NuGet Team does not provide support for this client. Please contact its maintainers for support.

📦 TL.CollectionExtensionsLibrary

Practical collection extensions for .NET: efficient batching (ChunkBy), in-memory keyset pagination, safe filtering, and uniform shuffling.
Extensões práticas para coleções no .NET: particionamento em lotes (ChunkBy), paginação keyset em memória, filtros seguros e embaralhamento uniforme.

O TL.CollectionExtensionsLibrary oferece um conjunto robusto de extensões de alto desempenho para coleções no .NET (IEnumerable<T>, IList<T>, Dictionary<TKey, TValue>, HashSet<T>, Queue<T> e Stack<T>), simplificando particionamento (batching), buscas, ordenações e manipulações comuns com complexidade assintótica previsível.

📦 Instalação

Adicione o pacote ao seu projeto através do .NET CLI:

dotnet add package TL.CollectionExtensionsLibrary

🚀 Funcionalidades Principais

`IEnumerable<T>`

Método	Retorno	Descrição
`Partition(predicate)`	`(List<T>, List<T>)`	Divide a sequência em elementos correspondentes e não correspondentes em passagem única $O(N)$.
`ForEachAsync(body, maxDegreeOfParallelism, cancellationToken)`	`Task`	Executa ação assíncrona sobre cada item controlando concorrência máxima com semáforo.
`HasItems()`	`bool`	Checagem $O(1)$ de presença de itens sem alocação desnecessária de enumeradores.
`ChunkBy(chunkSize)`	`IEnumerable<List<T>>`	Divide a sequência em lotes com passagem linear única $O(N)$ em streaming.
`Shuffle()`	`IEnumerable<T>`	Embaralha os elementos com algoritmo Fisher-Yates e distribuição estatisticamente uniforme.
`WhereIf(condition, predicate)`	`IEnumerable<T>`	Aplica o filtro de forma condicional apenas se `condition` for verdadeira.
`DistinctBy(keySelector)`	`IEnumerable<T>`	Retorna elementos com base na unicidade da chave selecionada.
`ToKeysetPagedList(keySelector, pageSize)`	`KeysetPagedList<T, TKey>`	Paginação de alta performance Keyset/Seek $O(1)$ para a primeira página.
`ToKeysetPagedList(keySelector, cursor, pageSize, direction)`	`KeysetPagedList<T, TKey>`	Navegação Keyset/Seek $O(1)$ em streaming baseada em cursor e direção (`Forward` / `Backward`).
`IsNullOrEmpty()`	`bool`	Valida se a coleção é nula ou se não possui nenhum elemento.

`IList<T>`

Método	Retorno	Descrição
`ChunkBy(chunkSize)`	`List<IList<T>>`	Divide a lista em lotes com indexação direta e complexidade linear estrita $O(N)$.
`AddRangeIfNotExists(items)`	`void`	Adiciona em lote apenas os itens inexistentes com verificação $O(1)$ por elemento.
`Replace(oldItem, newItem)`	`bool`	Substitui a primeira ocorrência do elemento com comparação segura contra nulos.
`SortBy(keySelector)`	`void`	Ordena a lista in-place a partir de um seletor de chave.
`Move(oldIndex, newIndex)`	`void`	Reposiciona um elemento dentro da lista a partir dos índices informados.

`Dictionary<TKey, TValue>` & Estruturas Especializadas

Estrutura	Método	Descrição
`Dictionary`	`GetOrAdd(key, valueFactory)`	Retorna o valor existente ou calcula e armazena um novo valor caso ausente.
`Dictionary`	`AddRangeIfNotExists(pairs)`	Adiciona múltiplos pares chave/valor ignorando chaves já presentes.
`Queue<T>`	`EnqueueRange(items)`	Enfileira múltiplos itens sequencialmente em lote.
`Stack<T>`	`PushRange(items)`	Empilha múltiplos itens sequencialmente em lote.

💡 Exemplos de Uso

using System;
using System.Collections.Generic;
using System.Threading.Tasks;
using CollectionExtensionsLibrary;

public class LoteProcessador
{
    public async Task ProcessarEmLotesAsync(IEnumerable<string> itens)
    {
        if (!itens.HasItems()) return;

        var (urgentes, normais) = itens.Partition(x => x.StartsWith("URGENTE_"));

        await urgentes.ForEachAsync(async item =>
        {
            await ProcessarItemAsync(item);
        }, maxDegreeOfParallelism: 4);

        foreach (var lote in normais.ChunkBy(100))
        {
            EnviarParaFila(lote);
        }
    }

    private Task ProcessarItemAsync(string item) => Task.CompletedTask;
    private void EnviarParaFila(List<string> lote) => Console.WriteLine($"Lote de {lote.Count} enviado.");
}

🏛️ Decisões Arquiteturais

Para entender as garantias de complexidade assintótica $O(N)$ em particionamentos e otimização de alocação de memória, consulte:

📄 ADR-007: Decisões Arquiteturais do TL.CollectionExtensionsLibrary

📄 Licença

Distribuído sob a licença MIT.

Product	Compatible and additional computed target framework versions.
.NET	net5.0 was computed. net5.0-windows was computed. net6.0 was computed. net6.0-android was computed. net6.0-ios was computed. net6.0-maccatalyst was computed. net6.0-macos was computed. net6.0-tvos was computed. net6.0-windows was computed. net7.0 was computed. net7.0-android was computed. net7.0-ios was computed. net7.0-maccatalyst was computed. net7.0-macos was computed. net7.0-tvos was computed. net7.0-windows was computed. net8.0 is compatible. net8.0-android was computed. net8.0-browser was computed. net8.0-ios was computed. net8.0-maccatalyst was computed. net8.0-macos was computed. net8.0-tvos was computed. net8.0-windows was computed. net9.0 was computed. net9.0-android was computed. net9.0-browser was computed. net9.0-ios was computed. net9.0-maccatalyst was computed. net9.0-macos was computed. net9.0-tvos was computed. net9.0-windows was computed. net10.0 was computed. net10.0-android was computed. net10.0-browser was computed. net10.0-ios was computed. net10.0-maccatalyst was computed. net10.0-macos was computed. net10.0-tvos was computed. net10.0-windows was computed.
.NET Core	netcoreapp2.0 was computed. netcoreapp2.1 was computed. netcoreapp2.2 was computed. netcoreapp3.0 was computed. netcoreapp3.1 was computed.
.NET Standard	netstandard2.0 is compatible. netstandard2.1 was computed.
.NET Framework	net461 was computed. net462 was computed. net463 was computed. net47 was computed. net471 was computed. net472 was computed. net48 was computed. net481 was computed.
MonoAndroid	monoandroid was computed.
MonoMac	monomac was computed.
MonoTouch	monotouch was computed.
Tizen	tizen40 was computed. tizen60 was computed.
Xamarin.iOS	xamarinios was computed.
Xamarin.Mac	xamarinmac was computed.
Xamarin.TVOS	xamarintvos was computed.
Xamarin.WatchOS	xamarinwatchos was computed.

Compatible target framework(s)

Included target framework(s) (in package)

Learn more about Target Frameworks and .NET Standard.

.NETStandard 2.0
- No dependencies.
net8.0
- No dependencies.

NuGet packages (1)

Showing the top 1 NuGet packages that depend on TL.CollectionExtensionsLibrary:

Package	Downloads
TL.ExtensionLibrary.Domain Clean Architecture Domain metapackage: pure, high-performance domain extensions (String, Numeric, DateTime, Enum, Collection) with zero external infrastructure dependencies.	1.4K

GitHub repositories

This package is not used by any popular GitHub repositories.

Version	Downloads	Last Updated
0.8.0	203	10/1/2026
0.7.0	191	9/26/2026
0.6.0	195	9/22/2026
0.5.0	204	9/16/2026
0.4.2	196	9/16/2026
0.4.1	209	9/11/2026
0.4.0	220	9/6/2026
0.3.0	118	9/6/2026
0.2.0	119	9/5/2026
0.1.0	116	9/4/2026
0.0.1	222	10/24/2024