Package es.uam.eps.ir.relison.graph.edges.fast

Class FastUndirectedWeightedEdges

java.lang.Object

es.uam.eps.ir.relison.graph.edges.fast.FastEdges

es.uam.eps.ir.relison.graph.edges.fast.FastUndirectedWeightedEdges

All Implemented Interfaces:

Edges, UndirectedEdges, WeightedEdges

public class FastUndirectedWeightedEdges
extends FastEdges
implements UndirectedEdges, WeightedEdges

Fast implementation of undirected weighted edges.

Field Summary

Fields inherited from class es.uam.eps.ir.relison.graph.edges.fast.FastEdges

numEdges, types, weights

Constructor Summary

Constructors

Constructor	Description
FastUndirectedWeightedEdges()	Constructor.

Method Summary

Modifier and Type	Method	Description
boolean	addEdge(int orig, int dest, double weight, int type)	Adds an edge to the set.
java.util.stream.Stream<es.uam.eps.ir.ranksys.fast.preference.IdxPref>	getAdjacentWeights(int node)	Gets the weights of the adjacent edges of a node.
java.util.stream.Stream<es.uam.eps.ir.ranksys.fast.preference.IdxPref>	getIncidentWeights(int node)	Gets the weights of the incident edges of a node.
java.util.stream.Stream<java.lang.Integer>	getNeighbourNodes(int node)	Gets the full neighbourhood of a node.
java.util.stream.Stream<EdgeType>	getNeighbourTypes(int node)	Gets the types of the neighbourhood edges of a node.
java.util.stream.Stream<es.uam.eps.ir.ranksys.fast.preference.IdxPref>	getNeighbourWeights(int node)	Gets the weights of the neighbour edges of a node.
java.util.stream.IntStream	getNodesWithAdjacentEdges()	Obtains the set of nodes which have adjacent edges.
java.util.stream.IntStream	getNodesWithEdges()	Obtains the set of nodes which have edges.
java.util.stream.IntStream	getNodesWithIncidentEdges()	Obtains the set of nodes which have incident edges.
java.util.stream.IntStream	getNodesWithMutualEdges()	Obtains the set of nodes which have, at least, a reciprocal edge.
boolean	removeEdge(int orig, int dest)	Removes an edge.
boolean	removeNode(int idx)	Removes a node from the edge list.
boolean	updateEdgeType(int orig, int dest, int type)	Modifies the weight of an edge.
boolean	updateEdgeWeight(int orig, int dest, double weight)	Modifies the weight of an edge.

Methods inherited from class es.uam.eps.ir.relison.graph.edges.fast.FastEdges

addUser, containsEdge, getAdjacentCount, getEdgeType, getEdgeWeight, getIncidentCount, getIsolatedNodes, getMutualCount, getNeighbourCount, getNumEdges, hasAdjacentEdges, hasEdges, hasIncidentEdges, hasMutualEdges

Methods inherited from class java.lang.Object

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

Methods inherited from interface es.uam.eps.ir.relison.graph.edges.Edges

addUser, containsEdge, getEdgeType, getEdgeWeight, getIncidentCount, getIsolatedNodes, getNeighbourCount, getNumEdges, hasAdjacentEdges, hasEdges, hasIncidentEdges, hasMutualEdges

Methods inherited from interface es.uam.eps.ir.relison.graph.edges.UndirectedEdges

getAdjacentCount, getAdjacentNodes, getAdjacentTypes, getIncidentNodes, getIncidentTypes, getMutualAdjacentTypes, getMutualAdjacentWeights, getMutualCount, getMutualIncidentTypes, getMutualIncidentWeights, getMutualNodes, getMutualTypes, getMutualWeights

Constructor Details

FastUndirectedWeightedEdges

public FastUndirectedWeightedEdges()

Constructor.

Method Details

getNeighbourNodes

public java.util.stream.Stream<java.lang.Integer> getNeighbourNodes(int node)

Description copied from interface: Edges

Gets the full neighbourhood of a node.

Specified by:

getNeighbourNodes in interface Edges

Parameters:

node - The node.

Returns:

a stream containing all the ids of the nodes.

getNeighbourTypes

public java.util.stream.Stream<EdgeType> getNeighbourTypes(int node)

Description copied from interface: Edges

Gets the types of the neighbourhood edges of a node.

Specified by:

getNeighbourTypes in interface Edges

Parameters:

node - The node.

Returns:

a stream containing all the edge types.

getIncidentWeights

public java.util.stream.Stream<es.uam.eps.ir.ranksys.fast.preference.IdxPref> getIncidentWeights(int node)

Description copied from interface: Edges

Gets the weights of the incident edges of a node.

Specified by:

getIncidentWeights in interface Edges

Specified by:

getIncidentWeights in interface UndirectedEdges

Specified by:

getIncidentWeights in interface WeightedEdges

Parameters:

node - The node.

Returns:

a stream containing all the edge types.

getAdjacentWeights

public java.util.stream.Stream<es.uam.eps.ir.ranksys.fast.preference.IdxPref> getAdjacentWeights(int node)

Description copied from interface: Edges

Gets the weights of the adjacent edges of a node.

Specified by:

getAdjacentWeights in interface Edges

Specified by:

getAdjacentWeights in interface UndirectedEdges

Specified by:

getAdjacentWeights in interface WeightedEdges

Parameters:

node - The node.

Returns:

a stream containing all the edge types.

getNeighbourWeights

public java.util.stream.Stream<es.uam.eps.ir.ranksys.fast.preference.IdxPref> getNeighbourWeights(int node)

Description copied from interface: Edges

Gets the weights of the neighbour edges of a node.

Specified by:

getNeighbourWeights in interface Edges

Specified by:

getNeighbourWeights in interface WeightedEdges

Parameters:

node - The node.

Returns:

a sream containing all the edge types.

addEdge

public boolean addEdge(int orig, int dest, double weight, int type)

Description copied from interface: Edges

Adds an edge to the set.

Specified by:

addEdge in interface Edges

Parameters:

orig - Source node.

dest - Incoming node.

weight - Weight of the edge.

type - Type of the edge.

Returns:

true if everything went OK, false if not.

updateEdgeWeight

public boolean updateEdgeWeight(int orig, int dest, double weight)

Description copied from interface: Edges

Modifies the weight of an edge.

Specified by:

updateEdgeWeight in interface Edges

Parameters:

orig - Source node.

dest - Incoming node.

weight - The new weight of the edge.

Returns:

true if everything went OK, false if not, or the edge does not exist.

updateEdgeType

public boolean updateEdgeType(int orig, int dest, int type)

Description copied from interface: Edges

Modifies the weight of an edge.

Specified by:

updateEdgeType in interface Edges

Parameters:

orig - Source node.

dest - Incoming node.

type - The new weight of the edge.

Returns:

true if everything went OK, false if not, or the edge does not exist.

removeNode

public boolean removeNode(int idx)

Description copied from interface: Edges

Removes a node from the edge list.

Specified by:

removeNode in interface Edges

Parameters:

idx - The identifier of the node.

Returns:

true if everything went OK, false otherwise.

removeEdge

public boolean removeEdge(int orig, int dest)

Description copied from interface: Edges

Removes an edge.

Specified by:

removeEdge in interface Edges

Parameters:

orig - Source node.

dest - Incoming node.

Returns:

true if everything went OK, false if not.

getNodesWithIncidentEdges

public java.util.stream.IntStream getNodesWithIncidentEdges()

Description copied from interface: Edges

Obtains the set of nodes which have incident edges.

Specified by:

getNodesWithIncidentEdges in interface Edges

Returns:

a stream containing the ids of nodes with incident edges.

getNodesWithAdjacentEdges

public java.util.stream.IntStream getNodesWithAdjacentEdges()

Description copied from interface: Edges

Obtains the set of nodes which have adjacent edges.

Specified by:

getNodesWithAdjacentEdges in interface Edges

Returns:

a stream containing the ids of nodes with incident edges.

getNodesWithEdges

public java.util.stream.IntStream getNodesWithEdges()

Description copied from interface: Edges

Obtains the set of nodes which have edges.

Specified by:

getNodesWithEdges in interface Edges

Returns:

a stream containing the ids of nodes with incident edges.

getNodesWithMutualEdges

public java.util.stream.IntStream getNodesWithMutualEdges()

Description copied from interface: Edges

Obtains the set of nodes which have, at least, a reciprocal edge.

Specified by:

getNodesWithMutualEdges in interface Edges

Returns:

a stream containing the ids of nodes with reciprocal edges.