Features Class

Features provides a listing of the features/qualities/quirks associated with any Graph implementation. This feature listing can be used to dynamically adjust code to the features of the graph implementation. For example, this feature listing is used extensively throughout the Blueprints TestSuite to validate behavior of the implementation.

Inheritance Hierarchy

SystemObject
VelocityGraph.Frontenac.BlueprintsFeatures

Namespace: VelocityGraph.Frontenac.Blueprints
Assembly: VelocityGraph (in VelocityGraph.dll) Version: 11.1.0.0 (11.1)

Syntax

C++

Copy

public class Features

Public Class Features

public ref class Features

type Features =  class end

The Features type exposes the following members.

Constructors

	Name	Description
	Features	Initializes a new instance of the Features class

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Properties

	Name	Description
	IgnoresSuppliedIds	Does the graph ignore user provided ids in graph.addVertex(object id)?
	IsPersistent	Does the graph persist the graph to disk after shutdown?
	IsRdfModel	Is the graph an RDF framework? Deprecated thus far, isRDFModel describes a collection of features. Use actual features to describe your data model.
	IsWrapper	Does the graph implement WrapperGraph?
	SupportsBooleanProperty	Does the graph allows boolean to be used as a property value for a graph element?
	SupportsDoubleProperty	Does the graph allows double to be used as a property value for a graph element?
	SupportsDuplicateEdges	Does the graph allow for two edges with the same vertices and edge label to exist?
	SupportsEdgeIndex	Does the graph support the indexing of edges by their properties?
	SupportsEdgeIteration	Does the graph support graph.getEdges()?
	SupportsEdgeKeyIndex	Does the graph support key indexing on edges?
	SupportsEdgeProperties	Does the graph support setting and retrieving properties on edges?
	SupportsEdgeRetrieval	Does the graph support retrieving edges by id, i.e. graph.getEdge(object id)?
	SupportsFloatProperty	Does the graph allows float to be used as a property value for a graph element?
	SupportsIdProperty	Does the graph allow the use of the 'id' property name?
	SupportsIndices	Does the graph implement IIndexableGraph?
	SupportsIntegerProperty	Does the graph allows integer to be used as a property value for a graph element?
	SupportsKeyIndices	Does the graph implement KeyIndexableGraph?
	SupportsLabelProperty	Does the graph allow the use of the 'label' property name?
	SupportsLongProperty	Does the graph allows long to be used as a property value for a graph element?
	SupportsMapProperty	Does the graph allows map to be used as a property value for a graph element?
	SupportsMixedListProperty	Does the graph allows a mixed list (different data types within the same list) to be used as a property value for a graph element?
	SupportsPrimitiveArrayProperty	Does the graph allows a primitive array to be used as a property value for a graph element?
	SupportsSelfLoops	Does the graph allow an edge to have the same out/tail and in/head vertex?
	SupportsSerializableObjectProperty	Does the graph allow any serializable object to be used as a property value for a graph element?
	SupportsStringProperty	Graph allows string to be used as a property value for a graph element.
	SupportsThreadedTransactions	Does the graph implement ThreadedTransactionalGraph?
	SupportsTransactions	Does the graph implement TransactionalGraph?
	SupportsUniformListProperty	Does the graph allows list (all objects with the list have the same data types) to be used as a property value for a graph element?
	SupportsVertexIndex	Does the graph support the indexing of vertices by their properties?
	SupportsVertexIteration	Does the graph support graph.getVertices()?
	SupportsVertexKeyIndex	Does the graph support key indexing on vertices?
	SupportsVertexProperties	Does the graph support setting and retrieving properties on vertices?

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Methods

	Name	Description
	CheckCompliance	This method determines whether the full gamut of features have been set by the Graph implementation. This is useful for implementers to ensure that they did not miss specifying a feature. Throws InvalidOperationException if a feature was not set
	CopyFeatures	This method copies the features in this features object to another feature object.
	SupportsElementProperties	Checks whether the graph supports both vertex and edge properties
	ToMap
	ToString	(Overrides ObjectToString.)

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Reference

VelocityGraph.Frontenac.Blueprints Namespace