iot.jcypher.query.api.pattern

Class Relation

java.lang.Object

iot.jcypher.query.api.APIObject

iot.jcypher.query.api.pattern.Element<Relation>

iot.jcypher.query.api.pattern.Relation

All Implemented Interfaces:

IClause, IElement

public class Relation
extends Element<Relation>

Field Summary

Fields inherited from class iot.jcypher.query.api.APIObject

astNode

Method Summary

Methods

Modifier and Type	Method and Description
Relation	hops(int hops) JCYPHER define the exact number of hops (hops are the number of relations between two nodes in a pattern); if hops are not defined explicitly, it defaults to 1 e.g.
Relation	hopsUnbound() JCYPHER define the minimum number of hops as 0 and the maximum number of hops as infinite (hops are the number of relations between two nodes in a pattern); if hops are not defined explicitly, the number of hops defaults to 1 e.g.
Relation	in() JCYPHER define the relation direction as incoming e.g.
Relation	maxHops(int maxHops) JCYPHER define the maximum number of hops (hops are the number of relations between two nodes in a pattern); if hops are not defined explicitly, it defaults to 1 e.g.
Relation	maxHopsUnbound() JCYPHER define the maximum number of hops as infinite (hops are the number of relations between two nodes in a pattern) e.g.
Relation	minHops(int minHops) JCYPHER define the minimum number of hops (hops are the number of relations between two nodes in a pattern); if hops are not defined explicitly, it defaults to 1 e.g.
Node	node() JCYPHER match or create (depends on the clause) nodes connected to the relation e.g.
Node	node(JcNode jcNode) JCYPHER match or create (depends on the clause) nodes connected to the relation, make them accessible by a JcNode element later on in the query e.g.
Relation	out() JCYPHER define the relation direction as outgoing e.g.
Relation	type(String type) JCYPHER set a type to match or create relations with that type e.g.

Methods inherited from class iot.jcypher.query.api.pattern.Element

property

Methods inherited from class java.lang.Object

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

Method Detail

type

public Relation type(String type)

JCYPHER

set a type to match or create relations with that type

e.g. MATCH.node(n).relation(r).type("Works_At")

node

public Node node()

JCYPHER

match or create (depends on the clause) nodes connected to the relation

e.g. MATCH.node(n).relation().node()

node

public Node node(JcNode jcNode)

JCYPHER

match or create (depends on the clause) nodes connected to the relation,
make them accessible by a JcNode element later on in the query

e.g. MATCH.node(n).relation().node(m)

in

public Relation in()

JCYPHER

define the relation direction as incoming

e.g. MATCH.node(n).relation(r).in()

out

public Relation out()

JCYPHER

define the relation direction as outgoing

e.g. MATCH.node(n).relation(r).out()

minHops

public Relation minHops(int minHops)

JCYPHER

define the minimum number of hops (hops are the number of relations between two nodes in a pattern);
if hops are not defined explicitly, it defaults to 1

e.g. MATCH.node(n).relation().minHops(2).node(m)

maxHops

public Relation maxHops(int maxHops)

JCYPHER

define the maximum number of hops (hops are the number of relations between two nodes in a pattern);
if hops are not defined explicitly, it defaults to 1

e.g. MATCH.node(n).relation().maxHops(3).node(m)

maxHopsUnbound

public Relation maxHopsUnbound()

JCYPHER

define the maximum number of hops as infinite (hops are the number of relations between two nodes in a pattern)

e.g. MATCH.node(n).relation().maxHopsUnbound().node(m)

hopsUnbound

public Relation hopsUnbound()

JCYPHER

define the minimum number of hops as 0 and the maximum number of hops as infinite
(hops are the number of relations between two nodes in a pattern);
if hops are not defined explicitly, the number of hops defaults to 1

e.g. MATCH.node(n).relation().hopsUnbound().node(m)

hops

public Relation hops(int hops)

JCYPHER

define the exact number of hops (hops are the number of relations between two nodes in a pattern);
if hops are not defined explicitly, it defaults to 1

e.g. MATCH.node(n).relation().hops(3).node(m)