Package org.goplanit.utils.graph

Class EdgeUtils

java.lang.Object

org.goplanit.utils.graph.EdgeUtils

public class EdgeUtils
extends Object

Utilities for edges that do not belong within the Edge class itself

Constructor Summary

Constructors

Constructor	Description
EdgeUtils()

Method Summary

Modifier and Type	Method	Description
static Vertex	getSharedVertex(Edge edge1, Edge edge2)	Collect shared vertex between two edges if any exists
static <E extends Edge,V extends Vertex> void	updateEdgeVertices(Iterable<E> edges, Function<V,V> vertexToVertexMapping, boolean replaceMissingMappings)	Update the vertices of all edges based on the mapping provided.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

EdgeUtils

public EdgeUtils()

Method Detail

getSharedVertex

public static Vertex getSharedVertex(Edge edge1,
                                     Edge edge2)

Collect shared vertex between two edges if any exists

Parameters:

edge1 - to check

edge2 - to check

Returns:

shared vertex, null if none is found

updateEdgeVertices

public static <E extends Edge,V extends Vertex> void updateEdgeVertices(Iterable<E> edges,
                                                                              Function<V,V> vertexToVertexMapping,
                                                                              boolean replaceMissingMappings)

Update the vertices of all edges based on the mapping provided. If no mapping exists, the edge will be assigned a null reference, unless indicated otherwise

Type Parameters:

E - type of edge

V - type of vertex

Parameters:

edges - to update vertices for

vertexToVertexMapping - to use should contain original vertex as currently used on edge and then the value is the new vertex to replace it

replaceMissingMappings - when true missing mappings results in a null assignment, otherwise they are left in-tact