Package org.jgrapht.graph
Class DirectedSubgraph<V,E>
- java.lang.Object
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- org.jgrapht.graph.AbstractGraph<V,E>
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- org.jgrapht.graph.Subgraph<V,E,DirectedGraph<V,E>>
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- org.jgrapht.graph.DirectedSubgraph<V,E>
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- Type Parameters:
V
- the graph vertex typeE
- the graph edge type
- All Implemented Interfaces:
java.io.Serializable
,DirectedGraph<V,E>
,Graph<V,E>
- Direct Known Subclasses:
DirectedWeightedSubgraph
public class DirectedSubgraph<V,E> extends Subgraph<V,E,DirectedGraph<V,E>> implements DirectedGraph<V,E>
A directed graph that is a subgraph of another graph.- See Also:
Subgraph
, Serialized Form
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Constructor Summary
Constructors Constructor Description DirectedSubgraph(DirectedGraph<V,E> base)
Creates a new directed induced subgraph with all vertices included.DirectedSubgraph(DirectedGraph<V,E> base, java.util.Set<? extends V> vertexSubset)
Creates a new directed induced subgraph.DirectedSubgraph(DirectedGraph<V,E> base, java.util.Set<? extends V> vertexSubset, java.util.Set<? extends E> edgeSubset)
Creates a new directed subgraph.
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description java.util.Set<E>
incomingEdgesOf(V vertex)
Returns a set of all edges incoming into the specified vertex.int
inDegreeOf(V vertex)
Returns the "in degree" of the specified vertex.int
outDegreeOf(V vertex)
Returns the "out degree" of the specified vertex.java.util.Set<E>
outgoingEdgesOf(V vertex)
Returns a set of all edges outgoing from the specified vertex.-
Methods inherited from class org.jgrapht.graph.Subgraph
addEdge, addEdge, addVertex, containsEdge, containsVertex, edgeSet, edgesOf, getAllEdges, getBase, getEdge, getEdgeFactory, getEdgeSource, getEdgeTarget, getEdgeWeight, removeEdge, removeEdge, removeVertex, setEdgeWeight, vertexSet
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Methods inherited from class org.jgrapht.graph.AbstractGraph
assertVertexExist, containsEdge, equals, hashCode, removeAllEdges, removeAllEdges, removeAllEdges, removeAllVertices, toString, toStringFromSets
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Methods inherited from class java.lang.Object
clone, finalize, getClass, notify, notifyAll, wait, wait, wait
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Methods inherited from interface org.jgrapht.Graph
addEdge, addEdge, addVertex, containsEdge, containsEdge, containsVertex, edgeSet, edgesOf, getAllEdges, getEdge, getEdgeFactory, getEdgeSource, getEdgeTarget, getEdgeWeight, removeAllEdges, removeAllEdges, removeAllVertices, removeEdge, removeEdge, removeVertex, vertexSet
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Field Detail
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serialVersionUID
private static final long serialVersionUID
- See Also:
- Constant Field Values
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Constructor Detail
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DirectedSubgraph
public DirectedSubgraph(DirectedGraph<V,E> base, java.util.Set<? extends V> vertexSubset, java.util.Set<? extends E> edgeSubset)
Creates a new directed subgraph.- Parameters:
base
- the base (backing) graph on which the subgraph will be based.vertexSubset
- vertices to include in the subgraph. Ifnull
then all vertices are included.edgeSubset
- edges to include in the subgraph. Ifnull
then all the edges whose vertices found in the graph are included.
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DirectedSubgraph
public DirectedSubgraph(DirectedGraph<V,E> base, java.util.Set<? extends V> vertexSubset)
Creates a new directed induced subgraph.- Parameters:
base
- the base (backing) graph on which the subgraph will be based.vertexSubset
- vertices to include in the subgraph. Ifnull
then all vertices are included.
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DirectedSubgraph
public DirectedSubgraph(DirectedGraph<V,E> base)
Creates a new directed induced subgraph with all vertices included.- Parameters:
base
- the base (backing) graph on which the subgraph will be based.
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Method Detail
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inDegreeOf
public int inDegreeOf(V vertex)
Returns the "in degree" of the specified vertex. An in degree of a vertex in a directed graph is the number of inward directed edges from that vertex. See http://mathworld.wolfram.com/Indegree.html.- Specified by:
inDegreeOf
in interfaceDirectedGraph<V,E>
- Parameters:
vertex
- vertex whose degree is to be calculated.- Returns:
- the degree of the specified vertex.
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incomingEdgesOf
public java.util.Set<E> incomingEdgesOf(V vertex)
Returns a set of all edges incoming into the specified vertex.- Specified by:
incomingEdgesOf
in interfaceDirectedGraph<V,E>
- Parameters:
vertex
- the vertex for which the list of incoming edges to be returned.- Returns:
- a set of all edges incoming into the specified vertex.
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outDegreeOf
public int outDegreeOf(V vertex)
Returns the "out degree" of the specified vertex. An out degree of a vertex in a directed graph is the number of outward directed edges from that vertex. See http://mathworld.wolfram.com/Outdegree.html.- Specified by:
outDegreeOf
in interfaceDirectedGraph<V,E>
- Parameters:
vertex
- vertex whose degree is to be calculated.- Returns:
- the degree of the specified vertex.
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outgoingEdgesOf
public java.util.Set<E> outgoingEdgesOf(V vertex)
Returns a set of all edges outgoing from the specified vertex.- Specified by:
outgoingEdgesOf
in interfaceDirectedGraph<V,E>
- Parameters:
vertex
- the vertex for which the list of outgoing edges to be returned.- Returns:
- a set of all edges outgoing from the specified vertex.
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