org.jgrapht.experimental.dag

Class DirectedAcyclicGraph.TopoVertexMap

java.lang.Object

org.jgrapht.experimental.dag.DirectedAcyclicGraph.TopoVertexMap

All Implemented Interfaces:

Serializable, DirectedAcyclicGraph.TopoOrderMapping<V>, DirectedAcyclicGraph.TopoOrderMappingFactory<V>

Enclosing class:

DirectedAcyclicGraph<V,E>

public class DirectedAcyclicGraph.TopoVertexMap
extends Object
implements DirectedAcyclicGraph.TopoOrderMapping<V>, DirectedAcyclicGraph.TopoOrderMappingFactory<V>

For performance and flexibility uses an ArrayList for topological index to vertex mapping, and a HashMap for vertex to topological index mapping.

Author:

Peter Giles

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
TopoVertexMap()

Method Summary

Modifier and Type	Method and Description
Integer	getTopologicalIndex(V vertex) Get the topological index of the given vertex.
DirectedAcyclicGraph.TopoOrderMapping<V>	getTopoOrderMapping() Create a new instance of a DirectedAcyclicGraph.TopoOrderMapping.
V	getVertex(Integer index) Get the vertex at the given topological index.
void	putVertex(Integer index, V vertex) Add a vertex at the given topological index.
void	removeAllVertices() Remove all vertices from the topological ordering
Integer	removeVertex(V vertex) Remove the given vertex from the topological ordering

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

TopoVertexMap

public TopoVertexMap()

Method Detail

putVertex

public void putVertex(Integer index,
                      V vertex)

Description copied from interface: DirectedAcyclicGraph.TopoOrderMapping

Add a vertex at the given topological index.

Specified by:

putVertex in interface DirectedAcyclicGraph.TopoOrderMapping<V>

Parameters:

index - the topological index

vertex - the vertex

getVertex

public V getVertex(Integer index)

Description copied from interface: DirectedAcyclicGraph.TopoOrderMapping

Get the vertex at the given topological index.

Specified by:

getVertex in interface DirectedAcyclicGraph.TopoOrderMapping<V>

Parameters:

index - the topological index

Returns:

vertex the vertex

getTopologicalIndex

public Integer getTopologicalIndex(V vertex)

Description copied from interface: DirectedAcyclicGraph.TopoOrderMapping

Get the topological index of the given vertex.

Specified by:

getTopologicalIndex in interface DirectedAcyclicGraph.TopoOrderMapping<V>

Parameters:

vertex - the vertex

Returns:

the index that the vertex is at, or null if the vertex isn't in the topological ordering

removeVertex

public Integer removeVertex(V vertex)

Description copied from interface: DirectedAcyclicGraph.TopoOrderMapping

Remove the given vertex from the topological ordering

Specified by:

removeVertex in interface DirectedAcyclicGraph.TopoOrderMapping<V>

Parameters:

vertex - the vertex

Returns:

the index that the vertex was at, or null if the vertex wasn't in the topological ordering

removeAllVertices

public void removeAllVertices()

Description copied from interface: DirectedAcyclicGraph.TopoOrderMapping

Remove all vertices from the topological ordering

Specified by:

removeAllVertices in interface DirectedAcyclicGraph.TopoOrderMapping<V>

getTopoOrderMapping

public DirectedAcyclicGraph.TopoOrderMapping<V> getTopoOrderMapping()

Description copied from interface: DirectedAcyclicGraph.TopoOrderMappingFactory

Create a new instance of a DirectedAcyclicGraph.TopoOrderMapping.

Specified by:

getTopoOrderMapping in interface DirectedAcyclicGraph.TopoOrderMappingFactory<V>

Returns:

a new instance of a DirectedAcyclicGraph.TopoOrderMapping