org.apache.tinkerpop.gremlin.structure

Interface Graph.Features.VertexPropertyFeatures

All Superinterfaces:

Graph.Features.DataTypeFeatures, Graph.Features.FeatureSet, Graph.Features.PropertyFeatures

All Known Implementing Classes:

EmptyGraph.EmptyGraphFeatures.EmptyGraphVertexPropertyFeatures, Neo4jGraph.Neo4jGraphFeatures.Neo4jVertexPropertyFeatures, TinkerGraph.TinkerGraphVertexPropertyFeatures

Enclosing interface:

Graph.Features

public static interface Graph.Features.VertexPropertyFeatures
extends Graph.Features.PropertyFeatures

Features that are related to Vertex Property objects.

Property Summary

Type	Property and Description
default boolean	supportsRemove Determines if a VertexProperty allows properties to be removed.

Field Summary

Fields

Modifier and Type	Field and Description
static String	FEATURE_ANY_IDS
static String	FEATURE_CUSTOM_IDS
static String	FEATURE_NUMERIC_IDS
static String	FEATURE_REMOVE_PROPERTY
static String	FEATURE_STRING_IDS
static String	FEATURE_USER_SUPPLIED_IDS
static String	FEATURE_UUID_IDS

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

FEATURE_PROPERTIES

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

FEATURE_BOOLEAN_ARRAY_VALUES, FEATURE_BOOLEAN_VALUES, FEATURE_BYTE_ARRAY_VALUES, FEATURE_BYTE_VALUES, FEATURE_DOUBLE_ARRAY_VALUES, FEATURE_DOUBLE_VALUES, FEATURE_FLOAT_ARRAY_VALUES, FEATURE_FLOAT_VALUES, FEATURE_INTEGER_ARRAY_VALUES, FEATURE_INTEGER_VALUES, FEATURE_LONG_ARRAY_VALUES, FEATURE_LONG_VALUES, FEATURE_MAP_VALUES, FEATURE_MIXED_LIST_VALUES, FEATURE_SERIALIZABLE_VALUES, FEATURE_STRING_ARRAY_VALUES, FEATURE_STRING_VALUES, FEATURE_UNIFORM_LIST_VALUES

Method Summary

Modifier and Type	Method and Description
default boolean	supportsAnyIds() Determines if an VertexProperty any Java object is a suitable identifier.
default boolean	supportsCustomIds() Determines if an VertexProperty has a specific custom object as their internal representation.
default boolean	supportsNumericIds() Determines if an VertexProperty has numeric identifiers as their internal representation.
default boolean	supportsRemoveProperty() Determines if a VertexProperty allows properties to be removed.
default boolean	supportsStringIds() Determines if an VertexProperty has string identifiers as their internal representation.
default boolean	supportsUserSuppliedIds() Determines if a VertexProperty allows an identifier to be assigned to it.
default boolean	supportsUuidIds() Determines if an VertexProperty has UUID identifiers as their internal representation.
default boolean	willAllowId(Object id) Determines if an identifier will be accepted by the Graph.

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

supportsProperties

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

supportsBooleanArrayValues, supportsBooleanValues, supportsByteArrayValues, supportsByteValues, supportsDoubleArrayValues, supportsDoubleValues, supportsFloatArrayValues, supportsFloatValues, supportsIntegerArrayValues, supportsIntegerValues, supportsLongArrayValues, supportsLongValues, supportsMapValues, supportsMixedListValues, supportsSerializableValues, supportsStringArrayValues, supportsStringValues, supportsUniformListValues

Property Detail

supportsRemove

default boolean supportsRemoveProperty

Determines if a VertexProperty allows properties to be removed.

Field Detail

FEATURE_REMOVE_PROPERTY

static final String FEATURE_REMOVE_PROPERTY

See Also:

Constant Field Values

FEATURE_USER_SUPPLIED_IDS

static final String FEATURE_USER_SUPPLIED_IDS

See Also:

Constant Field Values

FEATURE_NUMERIC_IDS

static final String FEATURE_NUMERIC_IDS

See Also:

Constant Field Values

FEATURE_STRING_IDS

static final String FEATURE_STRING_IDS

See Also:

Constant Field Values

FEATURE_UUID_IDS

static final String FEATURE_UUID_IDS

See Also:

Constant Field Values

FEATURE_CUSTOM_IDS

static final String FEATURE_CUSTOM_IDS

See Also:

Constant Field Values

FEATURE_ANY_IDS

static final String FEATURE_ANY_IDS

See Also:

Constant Field Values

Method Detail

supportsRemoveProperty

default boolean supportsRemoveProperty()

Determines if a VertexProperty allows properties to be removed.

supportsUserSuppliedIds

default boolean supportsUserSuppliedIds()

Determines if a VertexProperty allows an identifier to be assigned to it.

supportsNumericIds

default boolean supportsNumericIds()

Determines if an VertexProperty has numeric identifiers as their internal representation.

supportsStringIds

default boolean supportsStringIds()

Determines if an VertexProperty has string identifiers as their internal representation.

supportsUuidIds

default boolean supportsUuidIds()

Determines if an VertexProperty has UUID identifiers as their internal representation.

supportsCustomIds

default boolean supportsCustomIds()

Determines if an VertexProperty has a specific custom object as their internal representation.

supportsAnyIds

default boolean supportsAnyIds()

Determines if an VertexProperty any Java object is a suitable identifier. Note that this setting can only return true if supportsUserSuppliedIds() is true.

willAllowId

default boolean willAllowId(Object id)

Determines if an identifier will be accepted by the Graph. This check is different than what identifier internally supports as defined in methods like supportsNumericIds(). Those refer to internal representation of the identifier. A Graph may accept an identifier that is not of those types and internally transform it to a native representation.

Note that this method only applies if supportsUserSuppliedIds() is true. Those that return false for that method can immediately return false for this one as it allows no ids of any type (it generates them all).

The default implementation will immediately return false if supportsUserSuppliedIds() is false. If custom identifiers are supported then it will throw an exception. Those that return true for supportsCustomIds() should override this method. If supportsAnyIds() is true then the identifier will immediately be allowed. Finally, if any of the other types are supported, they will be typed checked against the class of the supplied identifier.