Package org.neo4j.gds.core.loading

Class HighLimitIdMap

java.lang.Object

org.neo4j.gds.api.IdMapAdapter

org.neo4j.gds.core.loading.HighLimitIdMap

All Implemented Interfaces:

BatchNodeIterable, IdMap, NodeIterator, PartialIdMap

public class HighLimitIdMap
extends IdMapAdapter

Nested Class Summary

Nested classes/interfaces inherited from interface org.neo4j.gds.api.BatchNodeIterable

BatchNodeIterable.BitSetIdIterator, BatchNodeIterable.IdIterable, BatchNodeIterable.IdIterator

Nested classes/interfaces inherited from interface org.neo4j.gds.api.IdMap

IdMap.NodeLabelConsumer

Field Summary

Fields inherited from interface org.neo4j.gds.api.IdMap

NOT_FOUND, START_NODE_ID

Constructor Summary

Constructors

Constructor	Description
HighLimitIdMap(ShardedLongLongMap intermediateIdMap, IdMap internalIdMap)

Method Summary

Modifier and Type	Method	Description
boolean	containsOriginalId(long originalNodeId)	Returns true iff the Neo4j id is mapped, otherwise false.
long	highestOriginalId()	The highest id that is mapped in this id mapping.
long	toMappedNodeId(long originalNodeId)	Maps an original node id to a mapped node id.
long	toOriginalNodeId(long mappedNodeId)	Returns the original node id for the given mapped node id.
java.util.Optional<FilteredIdMap>	withFilteredLabels(java.util.Collection<org.neo4j.gds.NodeLabel> nodeLabels, int concurrency)

Methods inherited from class org.neo4j.gds.api.IdMapAdapter

addNodeIdToLabel, addNodeLabel, availableNodeLabels, batchIterables, forEachNode, forEachNodeLabel, hasLabel, nodeCount, nodeCount, nodeIterator, nodeIterator, nodeLabels, rootIdMap, rootNodeCount, toRootNodeId

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.neo4j.gds.api.IdMap

safeToMappedNodeId

Constructor Detail

HighLimitIdMap

public HighLimitIdMap(ShardedLongLongMap intermediateIdMap,
                      IdMap internalIdMap)

Method Detail

toOriginalNodeId

public long toOriginalNodeId(long mappedNodeId)

Description copied from interface: IdMap

Returns the original node id for the given mapped node id. The original node id is typically the Neo4j node id. This method is guaranteed to always return the Neo4j id, regardless of the given mapped node id refers to a filtered node id space or a regular / unfiltered node id space.

Specified by:

toOriginalNodeId in interface IdMap

Overrides:

toOriginalNodeId in class IdMapAdapter

toMappedNodeId

public long toMappedNodeId(long originalNodeId)

Description copied from interface: PartialIdMap

Maps an original node id to a mapped node id. In case of nested id maps, the mapped node id is always in the space of the innermost mapping.

Specified by:

toMappedNodeId in interface PartialIdMap

Overrides:

toMappedNodeId in class IdMapAdapter

Parameters:

originalNodeId - must be smaller or equal to the id returned by IdMap.highestOriginalId()

containsOriginalId

public boolean containsOriginalId(long originalNodeId)

Description copied from interface: IdMap

Returns true iff the Neo4j id is mapped, otherwise false.

Specified by:

containsOriginalId in interface IdMap

Overrides:

containsOriginalId in class IdMapAdapter

highestOriginalId

public long highestOriginalId()

Description copied from interface: IdMap

The highest id that is mapped in this id mapping.

The value is the upper bound of the original node id space.

Specified by:

highestOriginalId in interface IdMap

Overrides:

highestOriginalId in class IdMapAdapter

withFilteredLabels

public java.util.Optional<FilteredIdMap> withFilteredLabels(java.util.Collection<org.neo4j.gds.NodeLabel> nodeLabels,
                                                            int concurrency)

Specified by:

withFilteredLabels in interface IdMap

Overrides:

withFilteredLabels in class IdMapAdapter