ai.grakn.graql.internal.query.match

Class MatchBase

java.lang.Object

ai.grakn.graql.internal.query.match.MatchBase

All Implemented Interfaces:

MatchAdmin, Match, Iterable<ConceptMap>

public class MatchBase
extends Object

Base Match implementation that executes the gremlin traversal

Author:

Grakn Warriors

Field Summary

Fields

Modifier and Type	Field and Description
protected org.slf4j.Logger	LOG

Constructor Summary

Constructors

Constructor and Description
MatchBase(Conjunction<PatternAdmin> pattern)

Method Summary

Modifier and Type	Method and Description
MatchAdmin	admin()
<S extends Answer> AggregateQuery<S>	aggregate(Aggregate<S> aggregate)
DeleteQuery	delete()
DeleteQuery	delete(Set<Var> vars)
DeleteQuery	delete(String var, String... vars)
DeleteQuery	delete(Var var, Var... vars)
boolean	equals(Object o)
GetQuery	get()
GetQuery	get(Set<Var> vars)
GetQuery	get(String var, String... vars)
GetQuery	get(Var var, Var... vars)
Conjunction<PatternAdmin>	getPattern()
Set<SchemaConcept>	getSchemaConcepts()
Set<SchemaConcept>	getSchemaConcepts(GraknTx tx)
Set<Var>	getSelectedNames()
int	hashCode()
Match	infer()
Boolean	inferring()
InsertQuery	insert(Collection<? extends VarPattern> vars)
InsertQuery	insert(VarPattern... vars)
Match	limit(long limit)
Match	offset(long offset)
Match	orderBy(String varName)
Match	orderBy(String varName, Order order)
Match	orderBy(Var varName)
Match	orderBy(Var varName, Order order)
java.util.stream.Stream<ConceptMap>	stream()
java.util.stream.Stream<ConceptMap>	stream(EmbeddedGraknTx<?> tx) Execute the query using the given graph.
static java.util.stream.Stream<ConceptMap>	streamWithTraversal(Set<Var> commonVars, EmbeddedGraknTx<?> tx, GraqlTraversal graqlTraversal)
String	toString()
GraknTx	tx()
Match	withTx(GraknTx tx)

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface ai.grakn.graql.Match

iterator

Methods inherited from interface java.lang.Iterable

forEach, spliterator

Field Detail

LOG

protected final org.slf4j.Logger LOG

Constructor Detail

MatchBase

public MatchBase(Conjunction<PatternAdmin> pattern)

Parameters:

pattern - a pattern to match in the graph

Method Detail

stream

public java.util.stream.Stream<ConceptMap> stream(EmbeddedGraknTx<?> tx)

Execute the query using the given graph.

Parameters:

tx - the graph to use to execute the query

Returns:

a stream of results

streamWithTraversal

public static java.util.stream.Stream<ConceptMap> streamWithTraversal(Set<Var> commonVars,
                                                                      EmbeddedGraknTx<?> tx,
                                                                      GraqlTraversal graqlTraversal)

Parameters:

commonVars - set of variables of interest

tx - the graph to get results from

graqlTraversal - gral traversal corresponding to the provided pattern

Returns:

resulting answer stream

getSchemaConcepts

public Set<SchemaConcept> getSchemaConcepts(GraknTx tx)

getSchemaConcepts

public Set<SchemaConcept> getSchemaConcepts()

getPattern

public Conjunction<PatternAdmin> getPattern()

tx

public GraknTx tx()

getSelectedNames

public final Set<Var> getSelectedNames()

inferring

public final Boolean inferring()

toString

public String toString()

Overrides:

toString in class Object

infer

public final Match infer()

equals

public boolean equals(Object o)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object

admin

public final MatchAdmin admin()

Specified by:

admin in interface Match

stream

public final java.util.stream.Stream<ConceptMap> stream()

Specified by:

stream in interface Match

withTx

public final Match withTx(GraknTx tx)

Specified by:

withTx in interface Match

limit

public final Match limit(long limit)

Specified by:

limit in interface Match

offset

public final Match offset(long offset)

Specified by:

offset in interface Match

aggregate

public final <S extends Answer> AggregateQuery<S> aggregate(Aggregate<S> aggregate)

Specified by:

aggregate in interface Match

get

public GetQuery get()

Specified by:

get in interface Match

get

public GetQuery get(String var,
                    String... vars)

Specified by:

get in interface Match

get

public GetQuery get(Var var,
                    Var... vars)

Specified by:

get in interface Match

get

public GetQuery get(Set<Var> vars)

Specified by:

get in interface Match

insert

public final InsertQuery insert(VarPattern... vars)

Specified by:

insert in interface Match

insert

public final InsertQuery insert(Collection<? extends VarPattern> vars)

Specified by:

insert in interface Match

delete

public DeleteQuery delete()

Specified by:

delete in interface Match

delete

public final DeleteQuery delete(String var,
                                String... vars)

Specified by:

delete in interface Match

delete

public final DeleteQuery delete(Var var,
                                Var... vars)

Specified by:

delete in interface Match

delete

public final DeleteQuery delete(Set<Var> vars)

Specified by:

delete in interface Match

orderBy

public final Match orderBy(String varName)

Specified by:

orderBy in interface Match

orderBy

public final Match orderBy(Var varName)

Specified by:

orderBy in interface Match

orderBy

public final Match orderBy(String varName,
                           Order order)

Specified by:

orderBy in interface Match

orderBy

public final Match orderBy(Var varName,
                           Order order)

Specified by:

orderBy in interface Match