Class TarjanSimpleCycles<V,​E>

  • Type Parameters:
    V - the vertex type.
    E - the edge type.
    All Implemented Interfaces:
    DirectedSimpleCycles<V,​E>

    public class TarjanSimpleCycles<V,​E>
    extends java.lang.Object
    implements DirectedSimpleCycles<V,​E>
    Find all simple cycles of a directed graph using the Tarjan's algorithm.

    See:
    R. Tarjan, Enumeration of the elementary circuits of a directed graph, SIAM J. Comput., 2 (1973), pp. 211-216.

    Author:
    Nikolay Ognyanov
    • Constructor Summary

      Constructors 
      Constructor Description
      TarjanSimpleCycles()
      Create a simple cycle finder with an unspecified graph.
      TarjanSimpleCycles​(Graph<V,​E> graph)
      Create a simple cycle finder for the specified graph.
    • Method Summary

      All Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      java.util.List<java.util.List<V>> findSimpleCycles()
      Find the simple cycles of the graph.
      Graph<V,​E> getGraph()
      Get the graph
      void setGraph​(Graph<V,​E> graph)
      Set the graph
      • Methods inherited from class java.lang.Object

        clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
    • Constructor Detail

      • TarjanSimpleCycles

        public TarjanSimpleCycles()
        Create a simple cycle finder with an unspecified graph.
      • TarjanSimpleCycles

        public TarjanSimpleCycles​(Graph<V,​E> graph)
        Create a simple cycle finder for the specified graph.
        Parameters:
        graph - - the DirectedGraph in which to find cycles.
        Throws:
        java.lang.IllegalArgumentException - if the graph argument is null.
    • Method Detail

      • getGraph

        public Graph<V,​E> getGraph()
        Get the graph
        Returns:
        graph
      • setGraph

        public void setGraph​(Graph<V,​E> graph)
        Set the graph
        Parameters:
        graph - graph
      • findSimpleCycles

        public java.util.List<java.util.List<V>> findSimpleCycles()
        Find the simple cycles of the graph.
        Specified by:
        findSimpleCycles in interface DirectedSimpleCycles<V,​E>
        Returns:
        The list of all simple cycles. Possibly empty but never null.