org.apache.tinkerpop.gremlin.structure

Interface Graph.Features.VertexFeatures

All Superinterfaces:

Graph.Features.ElementFeatures, Graph.Features.FeatureSet

All Known Implementing Classes:

EmptyGraph.EmptyGraphFeatures.EmptyGraphVertexFeatures, Neo4jGraph.Neo4jGraphFeatures.Neo4jVertexFeatures, TinkerGraph.TinkerGraphVertexFeatures

Enclosing interface:

Graph.Features

public static interface Graph.Features.VertexFeatures
extends Graph.Features.ElementFeatures

Features that are related to Vertex operations.

Property Summary

Properties inherited from interface org.apache.tinkerpop.gremlin.structure.Graph.Features.ElementFeatures

supportsAddProperty, supportsRemoveProperty

Field Summary

Fields

Modifier and Type	Field and Description
static String	FEATURE_ADD_VERTICES
static String	FEATURE_META_PROPERTIES
static String	FEATURE_MULTI_PROPERTIES
static String	FEATURE_REMOVE_VERTICES

Fields inherited from interface org.apache.tinkerpop.gremlin.structure.Graph.Features.ElementFeatures

FEATURE_ADD_PROPERTY, FEATURE_ANY_IDS, FEATURE_CUSTOM_IDS, FEATURE_NUMERIC_IDS, FEATURE_REMOVE_PROPERTY, FEATURE_STRING_IDS, FEATURE_USER_SUPPLIED_IDS, FEATURE_UUID_IDS

Method Summary

Modifier and Type	Method and Description
default VertexProperty.Cardinality	getCardinality(String key) Gets the VertexProperty.Cardinality for a key.
default Graph.Features.VertexPropertyFeatures	properties() Gets features related to "properties" on a Vertex.
default boolean	supportsAddVertices() Determines if a Vertex can be added to the Graph.
default boolean	supportsMetaProperties() Determines if a Vertex can support properties on vertex properties.
default boolean	supportsMultiProperties() Determines if a Vertex can support multiple properties with the same key.
default boolean	supportsRemoveVertices() Determines if a Vertex can be removed from the Graph.

Methods inherited from interface org.apache.tinkerpop.gremlin.structure.Graph.Features.ElementFeatures

supportsAddProperty, supportsAnyIds, supportsCustomIds, supportsNumericIds, supportsRemoveProperty, supportsStringIds, supportsUserSuppliedIds, supportsUuidIds, willAllowId

Field Detail

FEATURE_ADD_VERTICES

static final String FEATURE_ADD_VERTICES

See Also:

Constant Field Values

FEATURE_MULTI_PROPERTIES

static final String FEATURE_MULTI_PROPERTIES

See Also:

Constant Field Values

FEATURE_META_PROPERTIES

static final String FEATURE_META_PROPERTIES

See Also:

Constant Field Values

FEATURE_REMOVE_VERTICES

static final String FEATURE_REMOVE_VERTICES

See Also:

Constant Field Values

Method Detail

getCardinality

default VertexProperty.Cardinality getCardinality(String key)

Gets the VertexProperty.Cardinality for a key. By default, this method will return VertexProperty.Cardinality.list. Implementations that employ a schema can consult it to determine the VertexProperty.Cardinality. Those that do no have a schema can return their default VertexProperty.Cardinality for every key.

supportsAddVertices

default boolean supportsAddVertices()

Determines if a Vertex can be added to the Graph.

supportsRemoveVertices

default boolean supportsRemoveVertices()

Determines if a Vertex can be removed from the Graph.

supportsMultiProperties

default boolean supportsMultiProperties()

Determines if a Vertex can support multiple properties with the same key.

supportsMetaProperties

default boolean supportsMetaProperties()

Determines if a Vertex can support properties on vertex properties. It is assumed that a graph will support all the same data types for meta-properties that are supported for regular properties.

properties

default Graph.Features.VertexPropertyFeatures properties()

Gets features related to "properties" on a Vertex.