ai.grakn.graql.internal.pattern.property

Class HasResourceTypeProperty

java.lang.Object

ai.grakn.graql.internal.pattern.property.HasResourceTypeProperty

All Implemented Interfaces:

VarProperty, VarPropertyInternal

public class HasResourceTypeProperty
extends Object

Represents the has and key properties on a Type. This property can be queried or inserted. Whether this is a key is indicated by the required field. This property is defined as an implicit ontological structure between a Type and a ResourceType, including one implicit RelationType and two implicit RoleTypes. The labels of these types are derived from the label of the ResourceType. Like HasResourceProperty, if this is not a key and is used in a match query it will not use the implicit structure - instead, it will match if there is any kind of relation type connecting the two types.

Author:

Felix Chapman

Constructor Summary

Constructors

Constructor and Description
HasResourceTypeProperty(VarPatternAdmin resourceType, boolean required)

Method Summary

Modifier and Type	Method and Description
default void	buildString(StringBuilder builder)
void	checkValid(GraknGraph graph, VarPatternAdmin var) Check if the given property can be used in a match query
void	delete(GraknGraph graph, Concept concept) Delete the given property from the graph, if possible.
boolean	equals(Object o)
java.util.stream.Stream<VarPatternAdmin>	getImplicitInnerVars()
java.util.stream.Stream<VarPatternAdmin>	getInnerVars()
String	getName()
String	getProperty()
VarPatternAdmin	getResourceType()
java.util.stream.Stream<VarPatternAdmin>	getTypes()
int	hashCode()
void	insert(InsertQueryExecutor insertQueryExecutor, Concept concept) Insert the given property into the graph, if possible.
Atomic	mapToAtom(VarPatternAdmin var, Set<VarPatternAdmin> vars, ReasonerQuery parent)
Collection<EquivalentFragmentSet>	match(Var start) Return a collection of EquivalentFragmentSet to match the given property in the graph

Methods inherited from class java.lang.Object

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

Methods inherited from interface ai.grakn.graql.internal.pattern.property.VarPropertyInternal

checkInsertable, checkValid, delete

Methods inherited from interface ai.grakn.graql.admin.VarProperty

graqlString, isUnique

Constructor Detail

HasResourceTypeProperty

public HasResourceTypeProperty(VarPatternAdmin resourceType,
                               boolean required)

Method Detail

getResourceType

public VarPatternAdmin getResourceType()

getName

public String getName()

getProperty

public String getProperty()

match

public Collection<EquivalentFragmentSet> match(Var start)

Description copied from interface: VarPropertyInternal

Return a collection of EquivalentFragmentSet to match the given property in the graph

Specified by:

match in interface VarPropertyInternal

getTypes

public java.util.stream.Stream<VarPatternAdmin> getTypes()

Specified by:

getTypes in interface VarProperty

getInnerVars

public java.util.stream.Stream<VarPatternAdmin> getInnerVars()

Specified by:

getInnerVars in interface VarProperty

Specified by:

getInnerVars in interface VarPropertyInternal

getImplicitInnerVars

public java.util.stream.Stream<VarPatternAdmin> getImplicitInnerVars()

Specified by:

getImplicitInnerVars in interface VarProperty

insert

public void insert(InsertQueryExecutor insertQueryExecutor,
                   Concept concept)
            throws IllegalStateException

Description copied from interface: VarPropertyInternal

Insert the given property into the graph, if possible.

Specified by:

insert in interface VarPropertyInternal

Parameters:

insertQueryExecutor - the instance handling the insert query

concept - the concept to insert a property on

Throws:

IllegalStateException

equals

public boolean equals(Object o)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object

mapToAtom

public Atomic mapToAtom(VarPatternAdmin var,
                        Set<VarPatternAdmin> vars,
                        ReasonerQuery parent)

Specified by:

mapToAtom in interface VarProperty

buildString

public void buildString(StringBuilder builder)

Specified by:

buildString in interface VarProperty

checkValid

public final void checkValid(GraknGraph graph,
                             VarPatternAdmin var)
                      throws IllegalStateException

Description copied from interface: VarPropertyInternal

Check if the given property can be used in a match query

Specified by:

checkValid in interface VarPropertyInternal

Throws:

IllegalStateException

delete

public void delete(GraknGraph graph,
                   Concept concept)

Description copied from interface: VarPropertyInternal

Delete the given property from the graph, if possible.

Specified by:

delete in interface VarPropertyInternal

Parameters:

graph - the graph to operate on

concept - the concept to delete properties of