org.neo4j.storageengine.api

Interface NodeItem

All Superinterfaces:

EntityItem

public interface NodeItem
extends EntityItem

Represents a single node from a cursor.

Method Summary

Modifier and Type	Method and Description
int	degree(Direction direction) Returns degree, e.g.
int	degree(Direction direction, int typeId) Returns degree, e.g.
boolean	hasLabel(int labelId)
boolean	isDense()
org.neo4j.collection.primitive.PrimitiveIntSet	labels()
long	nextGroupId()
org.neo4j.cursor.Cursor<RelationshipItem>	relationships(Direction direction)
org.neo4j.cursor.Cursor<RelationshipItem>	relationships(Direction direction, int... typeIds)
org.neo4j.collection.primitive.PrimitiveIntSet	relationshipTypes()

Methods inherited from interface org.neo4j.storageengine.api.EntityItem

getProperty, getPropertyKeys, hasProperty, id, properties, property

Method Detail

labels

org.neo4j.collection.primitive.PrimitiveIntSet labels()

Returns:

label cursor for current node

Throws:

IllegalStateException - if no current node is selected

relationships

org.neo4j.cursor.Cursor<RelationshipItem> relationships(Direction direction,
                                                        int... typeIds)

Returns:

relationship cursor for current node

Throws:

IllegalStateException - if no current node is selected

relationships

org.neo4j.cursor.Cursor<RelationshipItem> relationships(Direction direction)

Returns:

relationship cursor for current node

Throws:

IllegalStateException - if no current node is selected

relationshipTypes

org.neo4j.collection.primitive.PrimitiveIntSet relationshipTypes()

Returns:

relationship type cursor for relationships attached to this node.

Throws:

IllegalStateException - if no current node is selected

degree

int degree(Direction direction)

Returns degree, e.g. number of relationships for this node.

Parameters:

direction - Direction filter when counting relationships, e.g. only outgoing or incoming.

Returns:

degree of relationships in the given direction.

degree

int degree(Direction direction,
           int typeId)

Returns degree, e.g. number of relationships for this node.

Parameters:

direction - Direction filter on when counting relationships, e.g. only outgoing or incoming.

typeId - relationship type id to filter when counting relationships.

Returns:

degree of relationships in the given direction and relationship type.

isDense

boolean isDense()

Returns:

whether or not this node has been marked as being dense, i.e. exceeding a certain threshold of number of relationships.

hasLabel

boolean hasLabel(int labelId)

Parameters:

labelId - label token id to check.

Returns:

whether or not this node has the given label.

nextGroupId

long nextGroupId()