OPCFoundation.NetStandard.Opc.Ua.XRegistry.Server 2.0.0-preview.6

Prefix Reserved
.NET 8.0 This package targets .NET 8.0. The package is compatible with this framework or higher. .NET Standard 2.1 This package targets .NET Standard 2.1. The package is compatible with this framework or higher. .NET Framework 4.7.2 This package targets .NET Framework 4.7.2. The package is compatible with this framework or higher.
This is a prerelease version of OPCFoundation.NetStandard.Opc.Ua.XRegistry.Server.
There is a newer prerelease version of this package available.
See the version list below for details. 
dotnet add package OPCFoundation.NetStandard.Opc.Ua.XRegistry.Server --version 2.0.0-preview.6
                    


                    

                
NuGet\Install-Package OPCFoundation.NetStandard.Opc.Ua.XRegistry.Server -Version 2.0.0-preview.6
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="OPCFoundation.NetStandard.Opc.Ua.XRegistry.Server" Version="2.0.0-preview.6" />
For projects that support PackageReference, copy this XML node into the project file to reference the package. 
<PackageVersion Include="OPCFoundation.NetStandard.Opc.Ua.XRegistry.Server" Version="2.0.0-preview.6" />
                    


                            Directory.Packages.props
                        

                    

                
<PackageReference Include="OPCFoundation.NetStandard.Opc.Ua.XRegistry.Server" />
                    


                            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 OPCFoundation.NetStandard.Opc.Ua.XRegistry.Server --version 2.0.0-preview.6
                    


                    

                
#r "nuget: OPCFoundation.NetStandard.Opc.Ua.XRegistry.Server, 2.0.0-preview.6"
#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 OPCFoundation.NetStandard.Opc.Ua.XRegistry.Server@2.0.0-preview.6
#: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=OPCFoundation.NetStandard.Opc.Ua.XRegistry.Server&version=2.0.0-preview.6&prerelease
                    


                            Install as a Cake Addin
                        

                    

                
#tool nuget:?package=OPCFoundation.NetStandard.Opc.Ua.XRegistry.Server&version=2.0.0-preview.6&prerelease
                    


                            Install as a Cake Tool

Opc.Ua.XRegistry.Server

The generic server-side xRegistry registry node managers for OPC UA. They serve a structurally addressed registry with an independent content fast path.

XRegistryRegistrationNodeManager, XRegistryFastPathNodeManager, and XRegistryFederationNodeManager derive from AsyncCustomNodeManager. Host them through IAsyncNodeManagerFactory; directly constructed managers use the same awaited lifecycle. Custom subclasses override LoadPredefinedNodesAsync, CreateAddressSpaceAsync, and SessionClosingAsync, awaiting their base implementations. Await DeleteAddressSpaceAsync before disposal to drain active operations and release handles.

The managers provide:

  • Fast path — publishes registered resources under an Opaque NodeId whose Identifier is the raw content-id bytes, so a consumer resolves a resource in a single Read.
  • Registration — the model's own lifecycle: CreateGroup / GetOrCreateGroup on the registry root, CreateResource / GetOrCreateResource on a group, and — because ResourceType is a FileType — the document is transferred with the inherited Open / Read / Write / Close. Xid remains the structural registry-relative Resource or Version path. Only a successful Close with accepted, byte-different staged content updates Version Epoch/ModifiedAt; it computes a separate content key (via IResourceContentIdProvider) and publishes or reuses the reference-counted Opaque fast-path node. Empty, rejected, clean, and byte-identical closes are side-effect free, and each Version permits one writer. Delete(ExpectedEpoch) gives optimistic concurrency on removal.
  • Federation — publishes a proxy for a resource hosted by a remote registry as a real ResourceType instance carrying an ExternalReference and ResourceUrl while retaining structural ResourceId, VersionId, and Xid.
  • Events — optionally emits the xRegistry 0.5.0 native OPC UA event hierarchy for successful registry interactions and projection reconciliation. Event support is disabled by default and requires an absolute EventSourceUrl; generated concrete EventState types are reported through the Server/registry/group/resource notifier chain.

Version events use the corresponding version file as SourceNode; resource events use the committed default-version file. Deleted events retain their former source identity and are reported through the nearest surviving notifier. Enabling events emits every mandatory event for each supported mutation; whole-registry creation/deletion events remain recommendations.

Version Labels, Epoch, CreatedAt, and ModifiedAt are independent per Version. Resource Meta uses synchronized MetaLabels, MetaEpoch, MetaCreatedAt, and MetaModifiedAt; Version changes do not mutate Resource Meta unless Versions or default-Version state also change.

Existing projection strategies and the original six-parameter XRegistryProjectionContext constructor remain compatible with events disabled. Event-enabled projections provide one atomic generation through IXRegistryProjectionGenerationProvider; version-aware projections opt into IXRegistryVersionedProjectionStrategy.

Document bytes live behind an injectable IXRegistryResourceStore; an in-process and a file-backed implementation ship with the package. Registry writes always require a SignAndEncrypt secure channel.

A concrete registry (for example a schema registry) supplies an IResourceContentIdProvider and its own companion namespace/NodeSet.

options.EventsEnabled = true;
options.EventSourceUrl = "https://registry.example.com";
options.GroupsAttributeName = "groups";
options.ResourcesAttributeName = "resources";
options.ResourceDocumentAttributeName = "schema";
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 is compatible.  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 is compatible.  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 netcoreapp3.0 was computed.  netcoreapp3.1 was computed. 
.NET Standard netstandard2.1 is compatible. 
.NET Framework net472 is compatible.  net48 is compatible.  net481 was computed. 
MonoAndroid monoandroid was computed. 
MonoMac monomac was computed. 
MonoTouch monotouch was computed. 
Tizen 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.

NuGet packages (1)

Showing the top 1 NuGet packages that depend on OPCFoundation.NetStandard.Opc.Ua.XRegistry.Server:

Package Downloads
OPCFoundation.NetStandard.Opc.Ua.WotCon.Server

OPC UA WoT Connectivity 1.1 server class library — hosts the OPC 10100-1 v1.02 asset-management surface and the registry-first materialization runtime.

GitHub repositories

This package is not used by any popular GitHub repositories.

Version Downloads Last Updated
2.0.1-preview.200 50 10/12/2026
2.0.0-preview.200 312 10/7/2026
2.0.0-preview.6 68 9/30/2026
2.0.0-preview.5 68 9/17/2026
2.0.0-preview.4 71 9/2/2026
2.0.0-preview.3 80 8/28/2026

https://github.com/OPCFoundation/UA-.NETStandard/releases