/// <summary>
/// Gets the model associated to a data object, if it exists. If the ModelContainer has been constructed without <see cref="IGuidContainer"/>, this method will throw an exception.
/// </summary>
/// <param name="rootObject">The data object.</param>
/// <returns>The <see cref="IModelNode"/> associated to the given object if available, or <c>null</c> otherwise.</returns>
public IModelNode GetModelNode(object rootObject)
{
if (guidContainer == null)
{
throw new InvalidOperationException("This ModelContainer has no GuidContainer and can't retrieve Guid associated to a data object.");
}
Guid guid = guidContainer.GetGuid(rootObject);
return(guid == Guid.Empty ? null : GetModelNode(guid));
}
/// <summary>
/// Gets the <see cref="IGraphNode"/> associated to a data object, if it exists. If the NodeContainer has been constructed without <see cref="IGuidContainer"/>, this method will throw an exception.
/// </summary>
/// <param name="rootObject">The data object.</param>
/// <returns>The <see cref="IGraphNode"/> associated to the given object if available, or <c>null</c> otherwise.</returns>
public IGraphNode GetNode(object rootObject)
{
lock (lockObject)
{
if (guidContainer == null)
{
throw new InvalidOperationException("This NodeContainer has no GuidContainer and can't retrieve Guid associated to a data object.");
}
var guid = guidContainer.GetGuid(rootObject);
return(guid == Guid.Empty ? null : GetNode(guid));
}
}
/// <summary>
/// Gets the <see cref="IGraphNode"/> associated to a data object, if it exists. If the NodeContainer has been constructed without <see cref="IGuidContainer"/>, this method will throw an exception.
/// </summary>
/// <param name="rootObject">The data object.</param>
/// <returns>The <see cref="IGraphNode"/> associated to the given object if available, or <c>null</c> otherwise.</returns>
internal IGraphNode GetNodeInternal(object rootObject)
{
lock (lockObject)
{
if (guidContainer == null)
{
throw new InvalidOperationException("This NodeContainer has no GuidContainer and can't retrieve Guid associated to a data object.");
}
var guid = guidContainer.GetGuid(rootObject);
if (guid == Guid.Empty)
{
return(null);
}
IGraphNode node;
if (nodesByGuid.TryGetValue(guid, out node))
{
if (node != null && !processedNodes.Value.Contains(node))
{
UpdateReferencesInternal(node);
}
}
return(node);
}
}
