com.blazegraph.gremlin.structure

Class EmptyBlazeVertexProperty<V>

java.lang.Object

com.blazegraph.gremlin.structure.BlazeVertexProperty<V>

com.blazegraph.gremlin.structure.EmptyBlazeVertexProperty<V>

All Implemented Interfaces:

BlazeElement, BlazeReifiedElement, org.apache.tinkerpop.gremlin.structure.Element, org.apache.tinkerpop.gremlin.structure.Property<V>, org.apache.tinkerpop.gremlin.structure.VertexProperty<V>

public class EmptyBlazeVertexProperty<V>
extends BlazeVertexProperty<V>

Wanted to extend TP3's EmptyVertexProperty, but it's final.

Author:

mikepersonick

Nested Class Summary

Nested classes/interfaces inherited from interface org.apache.tinkerpop.gremlin.structure.VertexProperty

org.apache.tinkerpop.gremlin.structure.VertexProperty.Cardinality, org.apache.tinkerpop.gremlin.structure.VertexProperty.Exceptions

Field Summary

Fields

Modifier and Type	Field and Description
static EmptyBlazeVertexProperty	INSTANCE

Fields inherited from interface org.apache.tinkerpop.gremlin.structure.VertexProperty

DEFAULT_LABEL

Method Summary

Modifier and Type	Method and Description
BlazeVertex	element() The vertex to which this property belongs.
boolean	equals(Object object) Pass through to ElementHelper.areEqual(VertexProperty, Object)
BlazeGraph	graph() The BlazeGraph instance.
int	hashCode() Pass through to ElementHelper.hashCode(Element)
String	id() The internally generated element id for this vertex property.
static <V> BlazeVertexProperty<V>	instance()
boolean	isPresent()
String	key() Property key.
String	label() The element label, which is the property key.
<U> CloseableIterator<org.apache.tinkerpop.gremlin.structure.Property<U>>	properties(String... propertyKeys) Strength return type to CloseableIterator.
<U> BlazeProperty<U>	property(String key) Safer default implementation that closes the iterator from properties().
<U> BlazeProperty<U>	property(String key, U value) Strengthen return type to BlazeProperty.
com.bigdata.rdf.model.BigdataBNode	rdfId() The reified vertex property triple.
org.openrdf.model.URI	rdfLabel() The RDF representation of the element label (required by BlazeElement).
void	remove()
String	toString() Pass through to StringFactory.propertyString(Property)
V	value() Property value.

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.tinkerpop.gremlin.structure.VertexProperty

empty

Methods inherited from interface org.apache.tinkerpop.gremlin.structure.Property

ifPresent, orElse, orElseGet, orElseThrow

Methods inherited from interface com.blazegraph.gremlin.structure.BlazeElement

keys, values

Methods inherited from interface org.apache.tinkerpop.gremlin.structure.Element

value

Field Detail

INSTANCE

public static final EmptyBlazeVertexProperty INSTANCE

Method Detail

instance

public static <V> BlazeVertexProperty<V> instance()

rdfId

public com.bigdata.rdf.model.BigdataBNode rdfId()

Description copied from class: BlazeVertexProperty

The reified vertex property triple.

Specified by:

rdfId in interface BlazeElement

Specified by:

rdfId in interface BlazeReifiedElement

Overrides:

rdfId in class BlazeVertexProperty<V>

See Also:

BlazeElement.rdfId()

rdfLabel

public org.openrdf.model.URI rdfLabel()

Description copied from class: BlazeVertexProperty

The RDF representation of the element label (required by BlazeElement).

Specified by:

rdfLabel in interface BlazeElement

Overrides:

rdfLabel in class BlazeVertexProperty<V>

label

public String label()

Description copied from class: BlazeVertexProperty

The element label, which is the property key.

Specified by:

label in interface org.apache.tinkerpop.gremlin.structure.Element

Specified by:

label in interface org.apache.tinkerpop.gremlin.structure.VertexProperty<V>

Overrides:

label in class BlazeVertexProperty<V>

hashCode

public int hashCode()

Description copied from class: BlazeVertexProperty

Pass through to ElementHelper.hashCode(Element)

Overrides:

hashCode in class BlazeVertexProperty<V>

equals

public boolean equals(Object object)

Description copied from class: BlazeVertexProperty

Pass through to ElementHelper.areEqual(VertexProperty, Object)

Overrides:

equals in class BlazeVertexProperty<V>

element

public BlazeVertex element()

Description copied from class: BlazeVertexProperty

The vertex to which this property belongs.

Specified by:

element in interface org.apache.tinkerpop.gremlin.structure.Property<V>

Specified by:

element in interface org.apache.tinkerpop.gremlin.structure.VertexProperty<V>

Overrides:

element in class BlazeVertexProperty<V>

id

public String id()

Description copied from class: BlazeVertexProperty

The internally generated element id for this vertex property.

Specified by:

id in interface org.apache.tinkerpop.gremlin.structure.Element

Overrides:

id in class BlazeVertexProperty<V>

graph

public BlazeGraph graph()

Description copied from class: BlazeVertexProperty

The BlazeGraph instance.

Specified by:

graph in interface BlazeElement

Specified by:

graph in interface org.apache.tinkerpop.gremlin.structure.Element

Specified by:

graph in interface org.apache.tinkerpop.gremlin.structure.VertexProperty<V>

Overrides:

graph in class BlazeVertexProperty<V>

property

public <U> BlazeProperty<U> property(String key)

Description copied from interface: BlazeReifiedElement

Safer default implementation that closes the iterator from properties().

property

public <U> BlazeProperty<U> property(String key,
                                     U value)

Description copied from class: BlazeVertexProperty

Strengthen return type to BlazeProperty.

Specified by:

property in interface BlazeReifiedElement

Specified by:

property in interface org.apache.tinkerpop.gremlin.structure.Element

Overrides:

property in class BlazeVertexProperty<V>

key

public String key()

Description copied from class: BlazeVertexProperty

Property key.

Specified by:

key in interface org.apache.tinkerpop.gremlin.structure.Property<V>

Overrides:

key in class BlazeVertexProperty<V>

value

public V value()
        throws NoSuchElementException

Description copied from class: BlazeVertexProperty

Property value.

Specified by:

value in interface org.apache.tinkerpop.gremlin.structure.Property<V>

Overrides:

value in class BlazeVertexProperty<V>

Throws:

NoSuchElementException

isPresent

public boolean isPresent()

Specified by:

isPresent in interface org.apache.tinkerpop.gremlin.structure.Property<V>

Overrides:

isPresent in class BlazeVertexProperty<V>

See Also:

Property.isPresent()

remove

public void remove()

Specified by:

remove in interface org.apache.tinkerpop.gremlin.structure.Element

Specified by:

remove in interface org.apache.tinkerpop.gremlin.structure.Property<V>

Overrides:

remove in class BlazeVertexProperty<V>

See Also:

Property.remove(), BlazeGraph.remove(BlazeReifiedElement)

toString

public String toString()

Description copied from class: BlazeVertexProperty

Pass through to StringFactory.propertyString(Property)

Overrides:

toString in class BlazeVertexProperty<V>

properties

public <U> CloseableIterator<org.apache.tinkerpop.gremlin.structure.Property<U>> properties(String... propertyKeys)

Description copied from class: BlazeVertexProperty

Strength return type to CloseableIterator. You MUST close this iterator when finished.

Specified by:

properties in interface BlazeElement

Specified by:

properties in interface BlazeReifiedElement

Specified by:

properties in interface org.apache.tinkerpop.gremlin.structure.Element

Specified by:

properties in interface org.apache.tinkerpop.gremlin.structure.VertexProperty<V>

Overrides:

properties in class BlazeVertexProperty<V>