Package org.codehaus.plexus.util.dag
Class CycleDetector
java.lang.Object
org.codehaus.plexus.util.dag.CycleDetector
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Field Summary
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Constructor Summary
Constructors -
Method Summary
Modifier and TypeMethodDescriptionprivate static booleanintroducesCycle(Vertex vertex) introducesCycle(Vertex vertex, Map<Vertex, Integer> vertexStateMap) This method will be called when an edge leading to given vertex was added and we want to check if introduction of this edge has not resulted in apparition of cycle in the graphprivate static booleanisNotVisited(Vertex vertex, Map<Vertex, Integer> vertexStateMap) private static booleanisVisiting(Vertex vertex, Map<Vertex, Integer> vertexStateMap)
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Field Details
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NOT_VISITED
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VISITING
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VISITED
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Constructor Details
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CycleDetector
public CycleDetector()
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Method Details
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hasCycle
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introducesCycle
This method will be called when an edge leading to given vertex was added and we want to check if introduction of this edge has not resulted in apparition of cycle in the graph- Parameters:
vertex-vertexStateMap-- Returns:
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introducesCycle
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isNotVisited
- Parameters:
vertex-vertexStateMap-- Returns:
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isVisiting
- Parameters:
vertex-vertexStateMap-- Returns:
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dfsVisit
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