Package org.neo4j.graphalgo.core.huge
Class UnionGraph
- java.lang.Object
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- org.neo4j.graphalgo.core.huge.UnionGraph
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- All Implemented Interfaces:
BatchNodeIterable
,Degrees
,Graph
,IdMapping
,NodeIterator
,NodeMapping
,NodePropertyContainer
,RelationshipAccess
,RelationshipIterator
,RelationshipPredicate
,RelationshipProperties
public final class UnionGraph extends java.lang.Object implements Graph
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Field Summary
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Fields inherited from interface org.neo4j.graphalgo.api.IdMapping
START_NODE_ID
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Method Summary
All Methods Static Methods Instance Methods Concrete Methods Modifier and Type Method Description java.util.Set<java.lang.String>
availableNodeProperties()
java.util.Collection<PrimitiveLongIterable>
batchIterables(int batchSize)
void
canRelease(boolean canRelease)
Graph
concurrentCopy()
boolean
contains(long nodeId)
Returns true iff the nodeId is mapped, otherwise false.int
degree(long nodeId)
boolean
exists(long sourceNodeId, long targetNodeId)
O(n) !void
forEachNode(java.util.function.LongPredicate consumer)
Iterate over each nodeIdvoid
forEachRelationship(long nodeId, double fallbackValue, RelationshipWithPropertyConsumer consumer)
Calls the given consumer function for every relationship of a given node.void
forEachRelationship(long nodeId, RelationshipConsumer consumer)
Calls the given consumer function for every relationship of a given node.long
getTarget(long sourceNodeId, long index)
boolean
hasRelationshipProperty()
RelationshipIntersect
intersection(long maxDegree)
boolean
isUndirected()
long
nodeCount()
Number of mapped nodeIds.PrimitiveLongIterator
nodeIterator()
NodeMapping
nodeMapping()
NodeProperties
nodeProperties(java.lang.String propertyKey)
Return the property values for a property keystatic Graph
of(java.util.Collection<? extends Graph> graphs)
long
relationshipCount()
double
relationshipProperty(long sourceNodeId, long targetNodeId)
Returns the property value for a relationship defined by its source and target nodes.double
relationshipProperty(long sourceNodeId, long targetNodeId, double fallbackValue)
get value of property on relationship between source and target node idvoid
releaseProperties()
Release only the properties associated with that graph.void
releaseTopology()
Release only the topological data associated with that graph.long
toMappedNodeId(long nodeId)
Map original nodeId to inner nodeIdlong
toOriginalNodeId(long nodeId)
Map inner nodeId back to original nodeId-
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
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Methods inherited from interface org.neo4j.graphalgo.api.Graph
availableNodeLabels, intersection, isEmpty, nodeLabels, release
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Methods inherited from interface org.neo4j.graphalgo.api.NodeMapping
containsOnlyAllNodesLabel, hasLabel
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Method Detail
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nodeCount
public long nodeCount()
Description copied from interface:IdMapping
Number of mapped nodeIds.
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nodeMapping
public NodeMapping nodeMapping()
- Specified by:
nodeMapping
in interfaceGraph
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relationshipCount
public long relationshipCount()
- Specified by:
relationshipCount
in interfaceGraph
- Returns:
- returns the total number of relationships in the graph.
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batchIterables
public java.util.Collection<PrimitiveLongIterable> batchIterables(int batchSize)
- Specified by:
batchIterables
in interfaceBatchNodeIterable
- Returns:
- a collection of iterables over every node, partitioned by the given batch size.
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forEachNode
public void forEachNode(java.util.function.LongPredicate consumer)
Description copied from interface:NodeIterator
Iterate over each nodeId- Specified by:
forEachNode
in interfaceNodeIterator
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nodeIterator
public PrimitiveLongIterator nodeIterator()
- Specified by:
nodeIterator
in interfaceNodeIterator
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nodeProperties
public NodeProperties nodeProperties(java.lang.String propertyKey)
Description copied from interface:NodePropertyContainer
Return the property values for a property key- Specified by:
nodeProperties
in interfaceNodePropertyContainer
- Parameters:
propertyKey
- the node property key- Returns:
- the values associated with that key
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availableNodeProperties
public java.util.Set<java.lang.String> availableNodeProperties()
- Specified by:
availableNodeProperties
in interfaceNodePropertyContainer
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toMappedNodeId
public long toMappedNodeId(long nodeId)
Description copied from interface:IdMapping
Map original nodeId to inner nodeId- Specified by:
toMappedNodeId
in interfaceIdMapping
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toOriginalNodeId
public long toOriginalNodeId(long nodeId)
Description copied from interface:IdMapping
Map inner nodeId back to original nodeId- Specified by:
toOriginalNodeId
in interfaceIdMapping
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contains
public boolean contains(long nodeId)
Description copied from interface:IdMapping
Returns true iff the nodeId is mapped, otherwise false.
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relationshipProperty
public double relationshipProperty(long sourceNodeId, long targetNodeId, double fallbackValue)
Description copied from interface:RelationshipProperties
get value of property on relationship between source and target node id- Specified by:
relationshipProperty
in interfaceRelationshipProperties
- Parameters:
sourceNodeId
- source nodetargetNodeId
- target nodefallbackValue
- value to use if relationship has no property value- Returns:
- the property value
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relationshipProperty
public double relationshipProperty(long sourceNodeId, long targetNodeId)
Description copied from interface:RelationshipProperties
Returns the property value for a relationship defined by its source and target nodes.- Specified by:
relationshipProperty
in interfaceRelationshipProperties
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forEachRelationship
public void forEachRelationship(long nodeId, RelationshipConsumer consumer)
Description copied from interface:RelationshipIterator
Calls the given consumer function for every relationship of a given node.- Specified by:
forEachRelationship
in interfaceRelationshipIterator
- Parameters:
nodeId
- id of the node for which to iterate relationshipsconsumer
- relationship consumer function
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forEachRelationship
public void forEachRelationship(long nodeId, double fallbackValue, RelationshipWithPropertyConsumer consumer)
Description copied from interface:RelationshipIterator
Calls the given consumer function for every relationship of a given node. If the graph was loaded with a relationship property, the property value of the relationship will be passed into the consumer. Otherwise the given fallback value will be used.- Specified by:
forEachRelationship
in interfaceRelationshipIterator
- Parameters:
nodeId
- id of the node for which to iterate relationshipsfallbackValue
- value used as relationship property if no properties were loadedconsumer
- relationship consumer function
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concurrentCopy
public Graph concurrentCopy()
- Specified by:
concurrentCopy
in interfaceGraph
- Specified by:
concurrentCopy
in interfaceRelationshipIterator
- Returns:
- a copy of this iterator that reuses new cursors internally, so that iterations happen independent from other iterations.
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intersection
public RelationshipIntersect intersection(long maxDegree)
- Specified by:
intersection
in interfaceGraph
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exists
public boolean exists(long sourceNodeId, long targetNodeId)
O(n) !- Specified by:
exists
in interfaceRelationshipPredicate
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getTarget
public long getTarget(long sourceNodeId, long index)
- Specified by:
getTarget
in interfaceRelationshipAccess
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canRelease
public void canRelease(boolean canRelease)
- Specified by:
canRelease
in interfaceGraph
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releaseTopology
public void releaseTopology()
Description copied from interface:Graph
Release only the topological data associated with that graph.- Specified by:
releaseTopology
in interfaceGraph
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releaseProperties
public void releaseProperties()
Description copied from interface:Graph
Release only the properties associated with that graph.- Specified by:
releaseProperties
in interfaceGraph
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hasRelationshipProperty
public boolean hasRelationshipProperty()
- Specified by:
hasRelationshipProperty
in interfaceGraph
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isUndirected
public boolean isUndirected()
- Specified by:
isUndirected
in interfaceGraph
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