Package org.neo4j.graphalgo.core.loading

Class NodePropertyMap

java.lang.Object

org.neo4j.graphalgo.core.loading.NodePropertyMap

All Implemented Interfaces:

NodeProperties

public final class NodePropertyMap
extends java.lang.Object
implements NodeProperties

Constructor Summary

Constructors

Constructor	Description
NodePropertyMap(PagedLongDoubleMap properties, double defaultValue)

Method Summary

Modifier and Type	Method	Description
java.util.OptionalLong	getMaxPropertyValue()
double	nodeProperty(long nodeId)	Returns the property value for a node or the loaded default value if no property has been defined.
double	nodeProperty(long nodeId, double defaultValue)	Returns the property value for a node or the given default value if no property had been defined.
long	release()	Release internal data structures and return an estimate how many bytes were freed.
long	size()

Methods inherited from class java.lang.Object

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

Constructor Detail

NodePropertyMap

public NodePropertyMap(PagedLongDoubleMap properties,
                       double defaultValue)

Method Detail

nodeProperty

public double nodeProperty(long nodeId)

Description copied from interface: NodeProperties

Returns the property value for a node or the loaded default value if no property has been defined.

Specified by:

nodeProperty in interface NodeProperties

nodeProperty

public double nodeProperty(long nodeId,
                           double defaultValue)

Description copied from interface: NodeProperties

Returns the property value for a node or the given default value if no property had been defined. The default value has precedence over the default value defined by the loader.

Specified by:

nodeProperty in interface NodeProperties

getMaxPropertyValue

public java.util.OptionalLong getMaxPropertyValue()

Specified by:

getMaxPropertyValue in interface NodeProperties

Returns:

the maximum value contained in the mapping or an empty OptionalLong if the mapping is empty or the feature is not supported.

release

public long release()

Description copied from interface: NodeProperties

Release internal data structures and return an estimate how many bytes were freed. Note that the mapping is not usable afterwards.

Specified by:

release in interface NodeProperties

size

public long size()

Specified by:

size in interface NodeProperties

Returns:

the number of values stored.