Adds the provided edge to this graph. If the vertex(s) are not yet in this graph, it/they are added as well.

Adds the provided vertex to this graph.

Adds all elements (i.e. vertices and edges) from the provided graph to this graph.

Determines whether this graph contains the edge object specified.

Returns whether a vertex exists in this graph.

Returns whether an edge exists in this graph between the start vertex and the end vertex specified.

Deserializes from reader.

Removes all edges from this graph between startVertex and endVertex. It will only remove edges between startVertex and endVertex, not between endVertex and startVertex, unless bothSides is set to true, then all edges between both vertices are removed, discarding their direction.

Determines whether the specified object is equal to the current object.

Allows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection.

Gets the adjacency list for vertex. The adjacency list is a list of TVertex - Hashset(Of TEdge) tuples, as a vertex can have multiple edges with the same related vertex.

Gets all entities on the path from the subtype to the hierarchy root.

Gets all names in use by owned elements of the element specified (names in use by fields, fk fields, navigators, etc.) in the complete hierarchy the element is in (if applicable).

Gets all subtypes (direct and indirect) for entity.

Gets all sub types in sub hierarchy for entity. A sub-hierarchy is a hierarchy inside a full inheritance hierarchy which share the same inheritance type and all vertices are directly connected.

Gets all distinct super types for the entities specified

Creates a NonDirectedGraph version of this graph. Always creates a copy, even if this graph is a non-directed graph.

Gets all the direct subtypes for the entity specified.

Gets all the edges between startVertex and endVertex

Gets all the edges started from the startvertex specified.

Gets all the edges which end in the endVertex specified.

Gets the full hierarchy the entity passed in is in

Serves as the default hash function.

Gets the orphaned vertices. Orphaned vertices are vertices which are not part of any edge in the graph

Gets a subgraph from this graph with the vertices and edges which match the functions specified. It creates a new instance and places the same vertex and edge instances in that graph.

Gets the sub hierarchy the passed in entity is in.

Gets the supertype for entity, if the entity is in an inheritance hierarchy

Gets the Type of the current instance.

A graph is called connected if every pair of distinct vertices in the graph is connected (directly or indirectly). A connected component is a maximal connected subgraph of G. Each vertex belongs to exactly one connected component, as does each edge. A directed graph is called weakly connected if replacing all of its directed edges with undirected edges produces a connected (undirected) graph. It is strongly connected or strong if it contains a directed path from u to v and a directed path from v to u for every pair of vertices u,v. The strong components are the maximal strongly connected subgraphs. See http://en.wikipedia.org/wiki/Connectivity_(graph_theory) We will only check for a connected un-directed graph or a weakly connected directed graph (same logic).

Determines whether the passed in entity is a hierarchy root for an inheritance hierarchy

Determines whether the passed in entity is part of an inheritance hierarchy or not

Determines whether the entity passed in is a subtype.

Creates a shallow copy of the current Object.

Called when an edge has been added

Called when an edge is about to be added

Called when an edge has been removed

Called when an edge is about to be removed

Called when a vertex has been added

Called when a vertex is about to be added

Called when a vertex has been removed

Called when a vertex is about to be removed

Removes the provided edge from the graph.

Removes a vertex from this graph.

Removes all elements (i.e. vertices and edges) of the provided graph from this graph.

Removes all elements (i.e. vertices and/or edges) of the provided graph from this graph.

Serializes the data in this class to the serializer passed in

Toggles the IsAbstract flag on the entity passed in, if the entity is in an inheritance hierarchy

Returns a String that represents the current Object.

Returns the transitive closure of this graph. The particular implementation of this graph uses the knowledge that all edges point to the same direction. this means that the # of operations is drastically reduced.

Validates if the edge passed in is addable to this graph structure. The start node and the end node for the are given as well. The same edge is present between startVertex and endVertex and also between endVertex and startVertex if the graph is a nondirected graph, hence the necessity of these two nodes in this routine

Validates if the edge passed in is removable from this graph structure. The start vertex and the end vertex for the are given as well. The same edge is present between startVertex and endVertex and also between endVertex and startVertex if the graph is a nondirected graph, hence the necessity of these two vertices in this routine

Validates if the vertex passed in is addable to this graph structure.

Validates if the vertex passed in is removable from this graph structure.

Validates if the vertexToRemove passed in is removable from the adjacency list of the vertex vertex. Removing the vertex means all edges from vertex to vertexToRemove are physically removed from the graph structure.