Module org.jgrapht.core
Package org.jgrapht.alg.interfaces

Interface MatchingAlgorithm.Matching<V,​E>

Type Parameters:
V - the graph vertex type
E - the graph edge type
All Superinterfaces:
java.lang.Iterable<E>
All Known Implementing Classes:
MatchingAlgorithm.MatchingImpl
Enclosing interface:
MatchingAlgorithm<V,​E>
public static interface MatchingAlgorithm.Matching<V,​E>
extends java.lang.Iterable<E>
A graph matching.

  • Method Summary

    Modifier and Type Method Description
    java.util.Set<E> getEdges()
    Get the edges of the matching.
    Graph<V,​E> getGraph()
    Returns the graph over which this matching is defined.
    double getWeight()
    Returns the weight of the matching.
    default boolean isMatched​(V v)
    Returns true if vertex v is incident to an edge in this matching.
    default boolean isPerfect()
    Returns true if the matching is a perfect matching.
    default java.util.Iterator<E> iterator()
    Returns an iterator over the edges in the matching.

    Methods inherited from interface java.lang.Iterable

    forEach, spliterator

  • Method Details

    • getGraph

      Graph<V,​E> getGraph()
      Returns the graph over which this matching is defined.
      Returns:
      the graph

    • getWeight

      double getWeight()
      Returns the weight of the matching.
      Returns:
      the weight of the matching

    • getEdges

      java.util.Set<E> getEdges()
      Get the edges of the matching.
      Returns:
      the edges of the matching

    • isMatched

      default boolean isMatched​(V v)
      Returns true if vertex v is incident to an edge in this matching.
      Parameters:
      v - vertex
      Returns:
      true if vertex v is incident to an edge in this matching.

    • isPerfect

      default boolean isPerfect()
      Returns true if the matching is a perfect matching. A matching is perfect if every vertex in the graph is incident to an edge in the matching.
      Returns:
      true if the matching is perfect. By definition, a perfect matching consists of exactly $\frac{1}{2|V|}$ edges, and the number of vertices in the graph must be even.

    • iterator

      default java.util.Iterator<E> iterator()
      Returns an iterator over the edges in the matching.
      Specified by:
      iterator in interface java.lang.Iterable<V>
      Returns:
      iterator over the edges in the matching.