Class FastUndirectedUnweightedEdges
java.lang.Object
es.uam.eps.ir.relison.graph.edges.fast.FastEdges
es.uam.eps.ir.relison.graph.edges.fast.FastUndirectedUnweightedEdges
- All Implemented Interfaces:
Edges
,UndirectedEdges
,UnweightedEdges
public class FastUndirectedUnweightedEdges extends FastEdges implements UndirectedEdges, UnweightedEdges
Fast implementation of undirected unweighted edges.
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Field Summary
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Constructor Summary
Constructors Constructor Description FastUndirectedUnweightedEdges()
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, 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
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Constructor Details
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FastUndirectedUnweightedEdges
public FastUndirectedUnweightedEdges()Constructor.
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Method Details
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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 interfaceEdges
- Parameters:
node
- The node.- Returns:
- a stream containing all the ids of the nodes.
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getNeighbourTypes
Description copied from interface:Edges
Gets the types of the neighbourhood edges of a node.- Specified by:
getNeighbourTypes
in interfaceEdges
- Parameters:
node
- The node.- Returns:
- a stream containing all the edge types.
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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 interfaceEdges
- Specified by:
getIncidentWeights
in interfaceUndirectedEdges
- Specified by:
getIncidentWeights
in interfaceUnweightedEdges
- Parameters:
node
- The node.- Returns:
- a stream containing all the edge types.
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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 interfaceEdges
- Specified by:
getAdjacentWeights
in interfaceUndirectedEdges
- Specified by:
getAdjacentWeights
in interfaceUnweightedEdges
- Parameters:
node
- The node.- Returns:
- a stream containing all the edge types.
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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 interfaceEdges
- Specified by:
getNeighbourWeights
in interfaceUnweightedEdges
- Parameters:
node
- The node.- Returns:
- a sream containing all the edge types.
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addEdge
public boolean addEdge(int orig, int dest, double weight, int type)Description copied from interface:Edges
Adds an edge to the set. -
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 interfaceEdges
- 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.
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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 interfaceEdges
- 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.
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removeNode
public boolean removeNode(int idx)Description copied from interface:Edges
Removes a node from the edge list.- Specified by:
removeNode
in interfaceEdges
- Parameters:
idx
- The identifier of the node.- Returns:
- true if everything went OK, false otherwise.
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removeEdge
public boolean removeEdge(int orig, int dest)Description copied from interface:Edges
Removes an edge.- Specified by:
removeEdge
in interfaceEdges
- Parameters:
orig
- Source node.dest
- Incoming node.- Returns:
- true if everything went OK, false if not.
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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 interfaceEdges
- Returns:
- a stream containing the ids of nodes with incident edges.
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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 interfaceEdges
- Returns:
- a stream containing the ids of nodes with incident edges.
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getNodesWithEdges
public java.util.stream.IntStream getNodesWithEdges()Description copied from interface:Edges
Obtains the set of nodes which have edges.- Specified by:
getNodesWithEdges
in interfaceEdges
- Returns:
- a stream containing the ids of nodes with incident edges.
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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 interfaceEdges
- Returns:
- a stream containing the ids of nodes with reciprocal edges.
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