internal void InternalRemoveNodeConnectionRequest(PointerDCN <T> typedTargetNode, ConnectionDirection direction)
{
switch (direction)
{
case ConnectionDirection.To:
connectedToNodesList.Remove(typedTargetNode);
break;
case ConnectionDirection.From:
connectedFromNodesList.Remove(typedTargetNode);
break;
case ConnectionDirection.Both:
connectedToNodesList.Remove(typedTargetNode);
connectedFromNodesList.Remove(typedTargetNode);
break;
case ConnectionDirection.Any:
connectedToNodesList.Remove(typedTargetNode);
connectedFromNodesList.Remove(typedTargetNode);
break;
default:
throw new NonExistentEnumCaseException <ConnectionDirection>(); //ncrunch: no coverage
}
}
private void AddConnectionWith(PointerDCN <T> typedNode, ConnectionDirection direction)
{
Helpers <T> .Verify_AddConnectionWith_ConditionsAreSatisfied(typedNode, this);
this.InternalAddNodeConnectionRequest(typedNode, direction);
typedNode.InternalAddNodeConnectionRequest(this, direction.Invert());
}
private void RemoveConnectionWith(PointerDCN <T> typedNode, ConnectionDirection direction)
{
if (Helpers <T> .CheckWhether_RemoveConnectionWith_IsNeeded(typedNode, this))
{
return;
}
this.InternalRemoveNodeConnectionRequest(typedNode, direction);
typedNode.InternalRemoveNodeConnectionRequest(this, direction.Invert());
}
internal void InternalAddNodeConnectionRequest(PointerDCN <T> typedTargetNode, ConnectionDirection direction)
{
switch (direction)
{
case ConnectionDirection.To:
if (!connectedToNodesList.Contains(typedTargetNode))
{
connectedToNodesList.Add(typedTargetNode);
}
break;
case ConnectionDirection.From:
if (!connectedFromNodesList.Contains(typedTargetNode))
{
connectedFromNodesList.Add(typedTargetNode);
}
break;
case ConnectionDirection.Both:
if (!connectedToNodesList.Contains(typedTargetNode))
{
connectedToNodesList.Add(typedTargetNode);
}
if (!connectedFromNodesList.Contains(typedTargetNode))
{
connectedFromNodesList.Add(typedTargetNode);
}
break;
case ConnectionDirection.Any:
throw new InvalidOperationException("May not specify 'Any' Connection Direction when adding a new Connection.");
default:
throw new NonExistentEnumCaseException <ConnectionDirection>(); //ncrunch: no coverage
}
}
internal void InternalAddNodeRequest(PointerDCN <T> targetNode)
{
pointerNodes.Add(targetNode);
}
//void IDirectedConnectedNodeCollection<T>.AddNodeWithConnectionsToFrom(IDirectedConnectedNode<T> newNode, IEnumerable<IDirectedConnectedNode<T>> connectToNodes, IEnumerable<IDirectedConnectedNode<T>> connectFromNodes)
//{
// (this as IDirectedConnectedNodeCollection<T>).AddNode(newNode);
// foreach( PointerDCN<T> toNode in connectToNodes)
// { (this as IDirectedConnectedNodeCollection<T>).ConnectNodesDirected(newNode, toNode); }
// foreach( PointerDCN<T> fromNode in connectFromNodes)
// { (this as IDirectedConnectedNodeCollection<T>).ConnectNodesDirected(fromNode, newNode); }
//}
//void IDirectedConnectedNodeCollection<T>.AddNodeWithConnectionsToFrom(IDirectedConnectedNode<T> newNode, IDirectedConnectedNode<T> connectToNode, IEnumerable<IDirectedConnectedNode<T>> connectFromNodes)
//{
// (this as IDirectedConnectedNodeCollection<T>).AddNodeWithConnectionsToFrom(newNode, new[]{connectToNode}, connectFromNodes);
//}
//void IDirectedConnectedNodeCollection<T>.AddNodeWithConnectionsToFrom(IDirectedConnectedNode<T> newNode, IEnumerable<IDirectedConnectedNode<T>> connectToNodes, IDirectedConnectedNode<T> connectFromNode)
//{
// (this as IDirectedConnectedNodeCollection<T>).AddNodeWithConnectionsToFrom(newNode, connectToNodes, new[]{connectFromNode});
//}
//void IDirectedConnectedNodeCollection<T>.AddNodeWithConnectionsToFrom(IDirectedConnectedNode<T> newNode, IDirectedConnectedNode<T> connectToNode, IDirectedConnectedNode<T> connectFromNode)
//{
// (this as IDirectedConnectedNodeCollection<T>).AddNodeWithConnectionsToFrom(newNode, new[]{connectToNode}, new[]{connectFromNode});
//}
#endregion
#region Internal Methods For Local-Only operations. No verification.
internal void InternalRemoveNodeRequest(PointerDCN <T> targetNode)
{
pointerNodes.Remove(targetNode);
}