/// <summary>
/// Create a child container.
/// </summary>
/// <remarks>
/// A child container shares the parent's configuration, but can be configured with different
/// settings or lifetime.</remarks>
/// <returns>The new child container.</returns>
public IUnityContainer CreateChildContainer()
{
var child = new UnityContainer(this);
ChildContainerCreated?.Invoke(this, new ChildContainerCreatedEventArgs(child._context));
return(child);
}
/// <inheritdoc />
object IUnityContainer.BuildUp(Type type, object existing, string name, params ResolverOverride[] overrides)
{
// Verify arguments
if (null == type)
{
throw new ArgumentNullException(nameof(type));
}
// Validate if they are assignable
if (null != existing && null != TypeValidator)
{
TypeValidator(type, existing.GetType());
}
var registration = (InternalRegistration)GetRegistration(type, name);
var container = registration.Get(typeof(LifetimeManager)) is ContainerControlledLifetimeManager manager
? (UnityContainer)manager.Scope
: this;
var context = new BuilderContext
{
List = new PolicyList(),
Lifetime = container.LifetimeContainer,
Existing = existing,
Overrides = null != overrides && 0 == overrides.Length ? null : overrides,
Registration = registration,
RegistrationType = type,
Name = name,
ExecutePlan = ContextExecutePlan,
ResolvePlan = ContextResolvePlan,
Type = registration is ContainerRegistration containerRegistration
? containerRegistration.Type : type
};
return(ExecutePlan(ref context));
}
#endregion
#region Child container management
/// <inheritdoc />
IUnityContainer IUnityContainer.CreateChildContainer()
{
var child = new UnityContainer(this);
ChildContainerCreated?.Invoke(this, new ChildContainerCreatedEventArgs(child._context));
return(child);
}
/// <inheritdoc />
IUnityContainer IUnityContainer.Parent => _parent;
#endregion
}
