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.
org.neo4j.cursor.Cursor<DegreeItem>	degrees()
boolean	hasLabel(int labelId)
boolean	isDense()
org.neo4j.cursor.Cursor<LabelItem>	label(int labelId)
org.neo4j.cursor.Cursor<LabelItem>	labels()
org.neo4j.cursor.Cursor<RelationshipItem>	relationships(Direction direction)
org.neo4j.cursor.Cursor<RelationshipItem>	relationships(Direction direction, int... typeIds)
org.neo4j.cursor.Cursor<RelationshipTypeItem>	relationshipTypes()

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

getProperty, getPropertyKeys, hasProperty, id, properties, property

Method Detail

labels

org.neo4j.cursor.Cursor<LabelItem> labels()

Returns:

label cursor for current node

Throws:

IllegalStateException - if no current node is selected

label

org.neo4j.cursor.Cursor<LabelItem> label(int labelId)

Parameters:

labelId - for specific label to find

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.cursor.Cursor<RelationshipTypeItem> 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.

degrees

org.neo4j.cursor.Cursor<DegreeItem> degrees()

Returns:

Cursor over all DegreeItem, i.e. all combinations of Direction and relationship type ids for this node.

hasLabel

boolean hasLabel(int labelId)

Parameters:

labelId - label token id to check.

Returns:

whether or not this node has the given label.