oracle.pg.common

Class OracleVertexFeaturesBase

java.lang.Object

oracle.pg.common.OracleVertexFeaturesBase

All Implemented Interfaces:

Graph.Features.ElementFeatures, Graph.Features.FeatureSet, Graph.Features.VertexFeatures

public class OracleVertexFeaturesBase
extends java.lang.Object
implements Graph.Features.VertexFeatures

Oracle Property Graph 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 inherited from interface org.apache.tinkerpop.gremlin.structure.Graph.Features.VertexFeatures

FEATURE_ADD_VERTICES, FEATURE_DUPLICATE_MULTI_PROPERTIES, FEATURE_META_PROPERTIES, FEATURE_MULTI_PROPERTIES, 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
VertexProperty.Cardinality	getCardinality(java.lang.String key) Gets the VertexProperty.Cardinality for a key.
Graph.Features.VertexPropertyFeatures	properties() Gets features related to "properties" on a Vertex.
boolean	supportsCustomIds() Determines if an Element has a specific custom object as their internal representation.
boolean	willAllowId(java.lang.Object id) Determines if an identifier will be accepted by the Graph.

Methods inherited from class java.lang.Object

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

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

supportsAddVertices, supportsDuplicateMultiProperties, supportsMetaProperties, supportsMultiProperties, supportsRemoveVertices

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

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

Method Detail

getCardinality

public VertexProperty.Cardinality getCardinality(java.lang.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.

Specified by:

getCardinality in interface Graph.Features.VertexFeatures

properties

public Graph.Features.VertexPropertyFeatures properties()

Gets features related to "properties" on a Vertex.

Specified by:

properties in interface Graph.Features.VertexFeatures

supportsCustomIds

public boolean supportsCustomIds()

Determines if an Element has a specific custom object as their internal representation. In other words, if the value returned from Element.id() is a type defined by the graph implementations, such as OrientDB's Rid, then this method should be return true. Note that this feature is most generally used for determining the appropriate tests to execute in the Gremlin Test Suite.

Specified by:

supportsCustomIds in interface Graph.Features.ElementFeatures

willAllowId

public boolean willAllowId(java.lang.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.

Specified by:

willAllowId in interface Graph.Features.ElementFeatures