/// <summary>
/// Gets an edge given an edge id. Throws if no such edge exist.
/// </summary>
/// <param name="edgeId">The id of the edge</param>
/// <returns>The edge with matching id if it exists</returns>
public Edge GetEdge(EdgeId edgeId)
{
if (Unrestricted)
{
UnrestrictedEdge headTail;
if (m_unrestrictedEdges.TryGetValue(edgeId, out headTail))
{
VertexType vt = headTail.m_headVertexType;
Vertex head = vt.GetVertex(headTail.m_headVertexId);
vt = headTail.m_tailVertexType;
Vertex tail = vt.GetVertex(headTail.m_tailVertexId);
return(new Edge(MyGraph, this, edgeId, head, tail));
}
}
else
{
UInt64 vertexVertex;
if (m_restrictedEdges.TryGetValue(edgeId, out vertexVertex))
{
VertexId headId = (VertexId)(vertexVertex >> 32);
Vertex head = HeadType.GetVertex(headId);
Vertex tail = TailType.GetVertex((VertexId)vertexVertex);
return(new Edge(MyGraph, this, edgeId, head, tail));
}
}
throw new EdgeDoesNotExistException();
}
/// <summary>
/// Gets an edge given an edge id. Throws if no such edge exist.
/// </summary>
/// <param name="edgeId">The id of the edge</param>
/// <param name="polymorphic">If true and id isn't found in this EdgeType continue search into sub types</param>
/// <param name="errorIfNotFound">Indicate what to do if <see cref="Edge"/> does not exist</param>
/// <returns>The edge with matching id if it exists</returns>
public Edge GetEdge(EdgeId edgeId, bool polymorphic = false, bool errorIfNotFound = true)
{
if (Unrestricted)
{
UnrestrictedEdge headTail;
if (m_unrestrictedEdges.TryGetValue(edgeId, out headTail))
{
VertexType vt = headTail.m_headVertexType;
Vertex head = vt.GetVertex(headTail.m_headVertexId);
vt = headTail.m_tailVertexType;
Vertex tail = vt.GetVertex(headTail.m_tailVertexId);
return(new Edge(MyGraph, this, edgeId, head, tail));
}
}
else
{
UInt64 vertexVertex;
if (m_restrictedEdges.TryGetValue(edgeId, out vertexVertex))
{
VertexId headId = (VertexId)(vertexVertex >> 32);
Vertex head = HeadType.GetVertex(headId);
Vertex tail = TailType.GetVertex((VertexId)vertexVertex);
return(new Edge(MyGraph, this, edgeId, head, tail));
}
}
if (polymorphic)
{
foreach (var et in m_subTypes)
{
var e = et.GetEdge(edgeId, polymorphic, false);
if (e != null)
{
return(e);
}
}
}
if (errorIfNotFound)
{
throw new EdgeDoesNotExistException();
}
return(null);
}