/// <summary>
/// Attaches a parent edge to this node.
/// </summary>
/// <param name="edge">An object that implements the IOwlEdge interface.</param>
/// <exception cref="ArgumentNullException">The specified edge is a null reference.</exception>
public void AttachParentEdge(IOwlEdge edge)
{
if (edge == null)
{
throw (new ArgumentNullException());
}
bool exists = false;
IOwlEdgeList edgeList = ParentEdges[edge.ID];
foreach (OwlEdge e in edgeList)
{
// First, we will look for an edge which is having the same parent and
// child as the one we want to add
if (e.ParentNode == edge.ParentNode)
{
exists = true;
}
}
// If there is none, then we add the edge to this node
if (!exists)
{
ParentEdges.Add(edge);
edge.ChildNode = this;
}
// If not, then do nothing
}
public void AddDependencyEdge(DependencyEdge edge)
{
if (Equals(edge.Parent.DbObject, DbObject))
{
ChildEdges.Add(edge);
}
if (Equals(edge.Child.DbObject, DbObject))
{
ParentEdges.Add(edge);
}
}
/// <summary>
/// Detaches a parent edge from this node.
/// </summary>
/// <param name="edge">An object that implements the IOwlNode interface.</param>
/// <exception cref="ArgumentNullException">The specified edge is a null reference.</exception>
public void DetachParentEdge(IOwlEdge edge)
{
if (edge == null)
{
throw (new ArgumentNullException());
}
if (ParentEdges.Contains(edge))
{
ParentEdges.Remove(edge);
edge.ChildNode = null;
}
}
