ai.grakn.graql.internal.gremlin.fragment

Class Fragments

java.lang.Object

ai.grakn.graql.internal.gremlin.fragment.Fragments

public class Fragments
extends Object

Factory for creating instances of Fragment.

Author:

Felix Chapman

Method Summary

Modifier and Type	Method and Description
static Fragment	attributeIndex(VarProperty varProperty, Var start, Label label, Object attributeValue) A Fragment that uses an index stored on each attribute.
static Fragment	dataType(VarProperty varProperty, Var start, AttributeType.DataType dataType)
static Fragment	id(VarProperty varProperty, Var start, ConceptId id)
static Fragment	inIsa(VarProperty varProperty, Var start, Var end, boolean mayHaveEdgeInstances)
static Fragment	inPlays(VarProperty varProperty, Var start, Var end, boolean required)
static ai.grakn.graql.internal.gremlin.fragment.InRelatesFragment	inRelates(VarProperty varProperty, Var start, Var end)
static Fragment	inRolePlayer(VarProperty varProperty, Var rolePlayer, Var edge, Var relation, Var role, com.google.common.collect.ImmutableSet<Label> roleLabels, com.google.common.collect.ImmutableSet<Label> relationTypeLabels)
static Fragment	inSub(VarProperty varProperty, Var start, Var end)
static Fragment	isAbstract(VarProperty varProperty, Var start)
static Fragment	label(VarProperty varProperty, Var start, com.google.common.collect.ImmutableSet<Label> labels)
static Fragment	neq(VarProperty varProperty, Var start, Var other)
static Fragment	notInternal(VarProperty varProperty, Var start)
static Fragment	outIsa(VarProperty varProperty, Var start, Var end)
static Fragment	outPlays(VarProperty varProperty, Var start, Var end, boolean required)
static Fragment	outRelates(VarProperty varProperty, Var start, Var end)
static Fragment	outRolePlayer(VarProperty varProperty, Var relation, Var edge, Var rolePlayer, Var role, com.google.common.collect.ImmutableSet<Label> roleLabels, com.google.common.collect.ImmutableSet<Label> relationTypeLabels)
static Fragment	outSub(VarProperty varProperty, Var start, Var end)
static Fragment	regex(VarProperty varProperty, Var start, String regex)
static Fragment	value(VarProperty varProperty, Var start, ValuePredicate predicate)

Methods inherited from class java.lang.Object

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

Method Detail

inRolePlayer

public static Fragment inRolePlayer(VarProperty varProperty,
                                    Var rolePlayer,
                                    Var edge,
                                    Var relation,
                                    @Nullable
                                    Var role,
                                    @Nullable
                                    com.google.common.collect.ImmutableSet<Label> roleLabels,
                                    @Nullable
                                    com.google.common.collect.ImmutableSet<Label> relationTypeLabels)

outRolePlayer

public static Fragment outRolePlayer(VarProperty varProperty,
                                     Var relation,
                                     Var edge,
                                     Var rolePlayer,
                                     @Nullable
                                     Var role,
                                     @Nullable
                                     com.google.common.collect.ImmutableSet<Label> roleLabels,
                                     @Nullable
                                     com.google.common.collect.ImmutableSet<Label> relationTypeLabels)

inSub

public static Fragment inSub(VarProperty varProperty,
                             Var start,
                             Var end)

outSub

public static Fragment outSub(VarProperty varProperty,
                              Var start,
                              Var end)

inRelates

public static ai.grakn.graql.internal.gremlin.fragment.InRelatesFragment inRelates(VarProperty varProperty,
                                                                                   Var start,
                                                                                   Var end)

outRelates

public static Fragment outRelates(VarProperty varProperty,
                                  Var start,
                                  Var end)

inIsa

public static Fragment inIsa(VarProperty varProperty,
                             Var start,
                             Var end,
                             boolean mayHaveEdgeInstances)

outIsa

public static Fragment outIsa(VarProperty varProperty,
                              Var start,
                              Var end)

dataType

public static Fragment dataType(VarProperty varProperty,
                                Var start,
                                AttributeType.DataType dataType)

inPlays

public static Fragment inPlays(VarProperty varProperty,
                               Var start,
                               Var end,
                               boolean required)

outPlays

public static Fragment outPlays(VarProperty varProperty,
                                Var start,
                                Var end,
                                boolean required)

id

public static Fragment id(VarProperty varProperty,
                          Var start,
                          ConceptId id)

label

public static Fragment label(VarProperty varProperty,
                             Var start,
                             com.google.common.collect.ImmutableSet<Label> labels)

value

public static Fragment value(VarProperty varProperty,
                             Var start,
                             ValuePredicate predicate)

isAbstract

public static Fragment isAbstract(VarProperty varProperty,
                                  Var start)

regex

public static Fragment regex(VarProperty varProperty,
                             Var start,
                             String regex)

notInternal

public static Fragment notInternal(VarProperty varProperty,
                                   Var start)

neq

public static Fragment neq(VarProperty varProperty,
                           Var start,
                           Var other)

attributeIndex

public static Fragment attributeIndex(@Nullable
                                      VarProperty varProperty,
                                      Var start,
                                      Label label,
                                      Object attributeValue)

A Fragment that uses an index stored on each attribute. Attributes are indexed by direct type and value.