MicroElements.Collections.Sources 1.4.0 The ID prefix of this package has been reserved for one of the owners of this package by NuGet.org. Prefix Reserved

.NET Standard 2.1
Install-Package MicroElements.Collections.Sources -Version 1.4.0
dotnet add package MicroElements.Collections.Sources --version 1.4.0
<PackageReference Include="MicroElements.Collections.Sources" Version="1.4.0">
  <PrivateAssets>all</PrivateAssets>
  <IncludeAssets>runtime; build; native; contentfiles; analyzers</IncludeAssets>
</PackageReference>
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paket add MicroElements.Collections.Sources --version 1.4.0
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#r "nuget: MicroElements.Collections.Sources, 1.4.0"
#r directive can be used in F# Interactive, C# scripting and .NET Interactive. Copy this into the interactive tool or source code of the script to reference the package.
// Install MicroElements.Collections.Sources as a Cake Addin
#addin nuget:?package=MicroElements.Collections.Sources&version=1.4.0

// Install MicroElements.Collections.Sources as a Cake Tool
#tool nuget:?package=MicroElements.Collections.Sources&version=1.4.0
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MicroElements.Collections.Sources

Summary

MicroElements source only package: Collection extensions: NotNull, Iterate, Materialize. Special collections: TwoLayerCache.

Extensions

NotNull

Returns not null (empty) enumeration if input is null.

string? GetFirstValue(IEnumerable<string>? optionalValues) =>
    optionalValues
        .NotNull()
        .FirstOrDefault();

Iterate

Iterates values and executes action for each value. It's like List.ForEach but works with lazy enumerations and does not forces additional allocations.

// Iterates values and outputs to console.
Enumerable
    .Range(1, 100_000)
    .Iterate(Console.WriteLine);

Materialize

Materializes source enumeration and allows to see intermediate results without changing execute chain. MaterializeDebug is the same as Materialize but works only in Debug mode and does not affect performance for Release builds.

Enumerable
    .Range(1, 10)
    .Materialize(values => { /*set breakpoint here*/ })
    .Iterate(Console.WriteLine);

Collections

TwoLayerCache

Represents ThreadSafe cache that holds only limited number of items. Can be used as drop in replacement for ConcurrentDictionary.

Use it when you need simple cache but with memory limit.

Notes:

  • Cache organized in two layers: hot and cold.
  • Items first added to cold cache.
  • GetValue first checks hot cache. If value not found in hot cache than cold cache uses for search.
  • If value exists in cold cache than item moves to hot cache.
  • If hot cache exceeds item limit then hot cache became cold cache and new hot cache creates.
Product Versions
.NET net5.0 net5.0-windows net6.0 net6.0-android net6.0-ios net6.0-maccatalyst net6.0-macos net6.0-tvos net6.0-windows
.NET Core netcoreapp3.0 netcoreapp3.1
.NET Standard netstandard2.1
MonoAndroid monoandroid
MonoMac monomac
MonoTouch monotouch
Tizen tizen60
Xamarin.iOS xamarinios
Xamarin.Mac xamarinmac
Xamarin.TVOS xamarintvos
Xamarin.WatchOS xamarinwatchos
Compatible target framework(s)
Additional computed target framework(s)
Learn more about Target Frameworks and .NET Standard.

NuGet packages (2)

Showing the top 2 NuGet packages that depend on MicroElements.Collections.Sources:

Package Downloads
MicroElements.Reflection.Sources The ID prefix of this package has been reserved for one of the owners of this package by NuGet.org.

MicroElements source only package: Reflection. Classes: TypeExtensions, TypeCheck, ObjectExtensions, Expressions, CodeCompiler.

MicroElements.Shared.Sources The ID prefix of this package has been reserved for one of the owners of this package by NuGet.org.

MicroElements source packages metapackage.

GitHub repositories

This package is not used by any popular GitHub repositories.

Version Downloads Last updated
1.4.0 49 5/15/2022
1.3.0 121 1/12/2022
1.2.1 155 12/13/2021
1.2.0 256 12/11/2021
1.1.0 139 11/1/2021

# Changelog

## [1.4.0] - 2022-05-15
- Added: TwoLayerCache.Instance - global static cache instance

## [1.3.0] - 2022-01-12
- Changed: Fixed PureAttribute ambiguity in NotNull extension when JetBrains.Annotations referenced

## [1.2.0] - 2021-12-10
- Added: Materialize extensions
- Changed: TwoLayerCache: Interlocked increments for cache metrics
- Changed: MicroElements.CodeContracts.Sources bumped to 1.1.0

## [1.1.0] - 2021-10-17
- Added: Iterate extensions
- Added: TwoLayerCache
- Changed: Namespaces granularity on file level.

## [1.0.0] - 2021-10-14
- Added: NotNull extensions

Full release notes can be found at: https://github.com/micro-elements/MicroElements.Shared/blob/master/src/MicroElements.Collections.Sources/CHANGELOG.md