ServicesContainer

Static entry point to Unity's internal dependency injection container. Resolves internal service interfaces to access Unity's private Package Manager API.

Definition

Namespace: Paragon.Editor.ThirdPartyPackageImporter.Internals Assembly: Paragon.Editor.dll

internal static class ServicesContainer

Remarks

ServicesContainer uses direct reflection (not the InternalProxy<T> pattern) to access Unity's internal UnityEditor.PackageManager.UI.Internal.ServicesContainer singleton. It provides a single public entry point: PackageDatabase.

Initialization

The static constructor:

1. Loads the ServicesContainer type from UnityEditor.CoreModule

2. Gets the instance static property (the singleton)

3. Caches the Resolve method for generic service resolution

Service Resolution

The private Resolve() method:

1. Loads the requested interface type by name from UnityEditor.CoreModule

2. Creates a generic Resolve<T>() method for that interface

3. Invokes it on the container singleton to get the service instance

The PackageDatabase property lazily resolves IPackageDatabase and wraps the result as a PackageDatabase proxy.

Properties

PackageDatabase

internal static PackageDatabase PackageDatabase { get; }

Lazily-resolved PackageDatabase proxy. Resolves UnityEditor.PackageManager.UI.Internal.IPackageDatabase from Unity's internal DI container on first access.

Common Pitfalls

Not an InternalProxy subclass Unlike all other types in this folder, ServicesContainer is a plain static class using manual reflection. It directly accesses typeof(UnityEditor.Editor).Assembly to locate internal types.

Reflection-based — may break on Unity version changes The container singleton, Resolve method, and IPackageDatabase interface are all internal Unity types. Their names or locations may change between Unity versions.

Lazy initialization for PackageDatabase The PackageDatabase property uses null-coalescing assignment (??=) and is only resolved once. Subsequent accesses return the cached proxy.

Examples

Typical Usage

// Get a package by its product ID
Package package = ServicesContainer.PackageDatabase.GetPackage(productId.ToString());

// Access version info
PackageVersion imported = package.imported;
PackageVersion latest = package.latest;

See Also

• PackageDatabase — The proxied service resolved by this container

• Package — Returned by PackageDatabase.GetPackage()