- java.lang.Object
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- org.jgrapht.alg.cycle.TarjanSimpleCycles<V,E>
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- 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.
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Field Summary
Fields Modifier and Type Field Description private java.util.function.Consumer<java.util.List<V>>
cycleConsumer
private Graph<V,E>
graph
private java.util.Set<V>
marked
private java.util.ArrayDeque<V>
markedStack
private java.util.ArrayDeque<V>
pointStack
private java.util.Map<V,java.util.Set<V>>
removed
private java.util.Map<V,java.lang.Integer>
vToI
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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.
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description private boolean
backtrack(V start, V vertex)
private void
clearState()
void
findSimpleCycles(java.util.function.Consumer<java.util.List<V>> consumer)
Find the simple cycles of the graph.Graph<V,E>
getGraph()
Get the graphprivate java.util.Set<V>
getRemoved(V v)
private void
initState(java.util.function.Consumer<java.util.List<V>> consumer)
void
setGraph(Graph<V,E> graph)
Set the graphprivate java.lang.Integer
toI(V v)
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Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
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Methods inherited from interface org.jgrapht.alg.cycle.DirectedSimpleCycles
findSimpleCycles
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Method Detail
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findSimpleCycles
public void findSimpleCycles(java.util.function.Consumer<java.util.List<V>> consumer)
Find the simple cycles of the graph.- Specified by:
findSimpleCycles
in interfaceDirectedSimpleCycles<V,E>
- Parameters:
consumer
- Consumer that will be called with each cycle found.
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initState
private void initState(java.util.function.Consumer<java.util.List<V>> consumer)
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clearState
private void clearState()
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toI
private java.lang.Integer toI(V v)
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