GraphBridge.EntityFrameworkCore.VectorData 0.1.0-preview.3

Prefix Reserved
.NET 10.0 This package targets .NET 10.0. The package is compatible with this framework or higher.
This is a prerelease version of GraphBridge.EntityFrameworkCore.VectorData. 
dotnet add package GraphBridge.EntityFrameworkCore.VectorData --version 0.1.0-preview.3
                    


                    

                
NuGet\Install-Package GraphBridge.EntityFrameworkCore.VectorData -Version 0.1.0-preview.3
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="GraphBridge.EntityFrameworkCore.VectorData" Version="0.1.0-preview.3" />
For projects that support PackageReference, copy this XML node into the project file to reference the package. 
<PackageVersion Include="GraphBridge.EntityFrameworkCore.VectorData" Version="0.1.0-preview.3" />
                    


                            Directory.Packages.props
                        

                    

                
<PackageReference Include="GraphBridge.EntityFrameworkCore.VectorData" />
                    


                            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 GraphBridge.EntityFrameworkCore.VectorData --version 0.1.0-preview.3
                    


                    

                
#r "nuget: GraphBridge.EntityFrameworkCore.VectorData, 0.1.0-preview.3"
#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 GraphBridge.EntityFrameworkCore.VectorData@0.1.0-preview.3
#: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=GraphBridge.EntityFrameworkCore.VectorData&version=0.1.0-preview.3&prerelease
                    


                            Install as a Cake Addin
                        

                    

                
#tool nuget:?package=GraphBridge.EntityFrameworkCore.VectorData&version=0.1.0-preview.3&prerelease
                    


                            Install as a Cake Tool

GraphBridge

GraphBridge.EntityFrameworkCore.VectorData

NuGet Microsoft.Extensions.VectorData License: MIT Developer preview

Optional adapter for GraphBridge, the Entity Framework Core provider for Neo4j. It lets retrieval code search an existing Neo4j node or relationship vector index through Microsoft.Extensions.VectorData's IVectorSearchable<TRecord>, without depending on Neo4j types or GraphBridge methods. The core provider does not take this dependency.

<PackageReference Include="GraphBridge.EntityFrameworkCore.VectorData" Version="<version on this page>" />

Bind an index, then search through the interface

public sealed record MovieHit(string Title, long Released);

// Application setup: the only code that knows GraphBridge, the index and the stored properties.
services.AddScoped<IVectorSearchable<MovieHit>>(provider => provider.GetRequiredService<MoviesContext>().Database
    .AsNodeVectorSearchable("movie_taste", movie => new MovieHit(movie["title"].As<string>(), movie["released"].As<long>())));

// Application code: depends only on the interface.
public sealed class MovieFinder(IVectorSearchable<MovieHit> search)
{
    public IAsyncEnumerable<VectorSearchResult<MovieHit>> FindAsync(ReadOnlyMemory<float> embedding)
        => search.SearchAsync(embedding, top: 5);
}

AsRelationshipVectorSearchable does the same for relationship indexes.

What you get
Inputs ReadOnlyMemory<float>, float[] and Embedding<float>, copied exactly and never normalized
Scores Neo4j's native similarity, unchanged: between 0 and 1, (1 + cos) / 2 for cosine and 1 / (1 + d²) for Euclidean
Behavior The same index check, limits (1–10,000 results, 1–4,096 coordinates), transaction, cancellation and concurrency rules as GraphBridge's own vector search; results are never tracked
Clear refusals Every non-default VectorSearchOptions setting (Filter, VectorProperty, Skip, IncludeVectors, ScoreThreshold) and every other input type fails before any database work

Boundaries

  • Search only. The index must already exist; nothing creates schema, writes records or generates embeddings.
  • No pre-filtering. EF global query filters and tenant rules do not apply; use an index that holds only what the caller may search.
  • Scores are not portable between vector stores, and VectorSearchResult has no provenance; GraphBridge's QueryVectorNodesAsync keeps the full observed index provenance.
  • The adapter borrows its context. Register it per scope, never as a singleton. With context pooling, an adapter kept beyond its scope fails clearly instead of running on another scope's context.
  • Requires Microsoft.Extensions.VectorData.Abstractions 10.11.0 or later.

The design was proposed by Luis Quintanilla in issue #1. Read the VectorData guide and the documentation for GraphBridge itself. Feedback is welcome in GitHub issues. MIT licensed.

Product Compatible and additional computed target framework versions.
.NET 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. 
Compatible target framework(s)
Included target framework(s) (in package)
Learn more about Target Frameworks and .NET Standard.

NuGet packages

This package is not used by any NuGet packages.

GitHub repositories

This package is not used by any popular GitHub repositories.

Version Downloads Last Updated
0.1.0-preview.3 48 10/17/2026

Developer preview. Release notes and the breaking-change policy: https://github.com/joslat/GraphBridge.EFCore/blob/main/CHANGELOG.md