ai.grakn.graql.internal.query.match

Class MatchQueryBase

java.lang.Object

ai.grakn.graql.internal.query.match.MatchQueryBase

All Implemented Interfaces:

MatchQueryAdmin, MatchQuery, Query<List<Answer>>, Streamable<Answer>, Iterable<Answer>

public class MatchQueryBase
extends Object

Base MatchQuery implementation that executes the gremlin traversal

Author:

Felix Chapman

Field Summary

Fields

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

Constructor Summary

Constructors

Constructor and Description
MatchQueryBase(Conjunction<PatternAdmin> pattern)

Method Summary

Modifier and Type	Method and Description
MatchQueryAdmin	admin()
<S> AggregateQuery<S>	aggregate(Aggregate<? super Answer,S> aggregate)
AskQuery	ask()
DeleteQuery	delete(Collection<? extends VarPattern> deleters)
DeleteQuery	delete(String... names)
DeleteQuery	delete(VarPattern... deleters)
MatchQuery	distinct()
boolean	equals(Object o)
List<Answer>	execute()
java.util.stream.Stream<Concept>	get(String name)
Optional<GraknGraph>	getGraph()
Conjunction<PatternAdmin>	getPattern()
Set<Var>	getSelectedNames()
Set<Type>	getTypes()
Set<Type>	getTypes(GraknGraph graph)
int	hashCode()
MatchQuery	infer(boolean materialise)
InsertQuery	insert(Collection<? extends VarPattern> vars)
InsertQuery	insert(VarPattern... vars)
boolean	isReadOnly()
MatchQuery	limit(long limit)
MatchQuery	offset(long offset)
MatchQuery	orderBy(String varName)
MatchQuery	orderBy(String varName, Order order)
MatchQuery	orderBy(Var varName)
MatchQuery	orderBy(Var varName, Order order)
java.util.stream.Stream<String>	resultsString(Printer printer)
MatchQuery	select(Set<Var> names)
MatchQuery	select(String... names)
java.util.stream.Stream<Answer>	stream()
java.util.stream.Stream<Answer>	stream(Optional<GraknGraph> optionalGraph) Execute the query using the given graph.
String	toString()
MatchQuery	withGraph(GraknGraph graph)

Methods inherited from class java.lang.Object

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

Methods inherited from interface ai.grakn.graql.Streamable

iterator, parallelStream

Methods inherited from interface java.lang.Iterable

forEach, spliterator

Field Detail

LOG

protected final org.slf4j.Logger LOG

Constructor Detail

MatchQueryBase

public MatchQueryBase(Conjunction<PatternAdmin> pattern)

Parameters:

pattern - a pattern to match in the graph

Method Detail

stream

public java.util.stream.Stream<Answer> stream(Optional<GraknGraph> optionalGraph)

Execute the query using the given graph.

Parameters:

optionalGraph - the graph to use to execute the query

Returns:

a stream of results

getTypes

public Set<Type> getTypes(GraknGraph graph)

getTypes

public Set<Type> getTypes()

getPattern

public Conjunction<PatternAdmin> getPattern()

getGraph

public Optional<GraknGraph> getGraph()

getSelectedNames

public Set<Var> getSelectedNames()

toString

public String toString()

Overrides:

toString in class Object

infer

public final MatchQuery infer(boolean materialise)

equals

public boolean equals(Object o)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object

resultsString

public final java.util.stream.Stream<String> resultsString(Printer printer)

Specified by:

resultsString in interface Query<List<Answer>>

isReadOnly

public final boolean isReadOnly()

Specified by:

isReadOnly in interface Query<List<Answer>>

admin

public final MatchQueryAdmin admin()

Specified by:

admin in interface MatchQuery

execute

public final List<Answer> execute()

Specified by:

execute in interface Query<List<Answer>>

stream

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

Specified by:

stream in interface Streamable<Answer>

withGraph

public final MatchQuery withGraph(GraknGraph graph)

Specified by:

withGraph in interface MatchQuery

Specified by:

withGraph in interface Query<List<Answer>>

limit

public final MatchQuery limit(long limit)

Specified by:

limit in interface MatchQuery

offset

public final MatchQuery offset(long offset)

Specified by:

offset in interface MatchQuery

distinct

public final MatchQuery distinct()

Specified by:

distinct in interface MatchQuery

aggregate

public final <S> AggregateQuery<S> aggregate(Aggregate<? super Answer,S> aggregate)

Specified by:

aggregate in interface MatchQuery

select

public final MatchQuery select(String... names)

Specified by:

select in interface MatchQuery

select

public final MatchQuery select(Set<Var> names)

Specified by:

select in interface MatchQuery

get

public final java.util.stream.Stream<Concept> get(String name)

Specified by:

get in interface MatchQuery

ask

public final AskQuery ask()

Specified by:

ask in interface MatchQuery

insert

public final InsertQuery insert(VarPattern... vars)

Specified by:

insert in interface MatchQuery

insert

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

Specified by:

insert in interface MatchQuery

delete

public final DeleteQuery delete(VarPattern... deleters)

Specified by:

delete in interface MatchQuery

delete

public final DeleteQuery delete(String... names)

Specified by:

delete in interface MatchQuery

delete

public final DeleteQuery delete(Collection<? extends VarPattern> deleters)

Specified by:

delete in interface MatchQuery

orderBy

public final MatchQuery orderBy(String varName)

Specified by:

orderBy in interface MatchQuery

orderBy

public final MatchQuery orderBy(Var varName)

Specified by:

orderBy in interface MatchQuery

orderBy

public final MatchQuery orderBy(String varName,
                                Order order)

Specified by:

orderBy in interface MatchQuery

orderBy

public final MatchQuery orderBy(Var varName,
                                Order order)

Specified by:

orderBy in interface MatchQuery