Class BaseDescribeAlgorithm

Abstract Base Class for SPARQL Describe Algorithms which provides BNode rewriting functionality.

Inheritance
System.Object
BaseDescribeAlgorithm
ConciseBoundedDescription
LabelledDescription
MinimalSpanningGraph
NamedGraphDescription
SimpleSubjectDescription
SimpleSubjectObjectDescription
SymmetricConciseBoundedDescription
Implements
Inherited Members
object.Equals(object)
object.Equals(object, object)
object.GetHashCode()
object.GetType()
object.MemberwiseClone()
object.ReferenceEquals(object, object)
object.ToString()
Namespace: VDS.RDF.Utils.Describe
Assembly: dotNetRdf.dll
Syntax
public abstract class BaseDescribeAlgorithm : IDescribeAlgorithm

Methods

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Describe(IRdfHandler, ITripleIndex, IEnumerable<INode>, Uri, INamespaceMapper)

Generates a graph which is the description of the resources represented by the provided nodes.

Declaration
public void Describe(IRdfHandler handler, ITripleIndex dataset, IEnumerable<INode> nodes, Uri baseUri = null, INamespaceMapper namespaceMap = null)
Parameters
Type Name Description
IRdfHandler handler

The handler to receive the triples that provide the description.
ITripleIndex dataset

The dataset to extract descriptions from.
System.Collections.Generic.IEnumerable<T><INode> nodes

The nodes to be described.
System.Uri baseUri

An optional base URI to pass through to the RDF handler.
INamespaceMapper namespaceMap

An optional namespace map to pass through to the RDF handler.
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Describe(ITripleIndex, IEnumerable<INode>)

Generates a Graph which is the description of the resources represented by the provided nodes.

Declaration
public IGraph Describe(ITripleIndex dataset, IEnumerable<INode> nodes)
Parameters
Type Name Description
ITripleIndex dataset

The dataset to extract descriptions from.
System.Collections.Generic.IEnumerable<T><INode> nodes

The nodes to be described.
Returns
Type Description
IGraph
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DescribeInternal(IRdfHandler, ITripleIndex, IEnumerable<INode>)

Generates the Description for each of the Nodes to be described.

Declaration
protected abstract void DescribeInternal(IRdfHandler handler, ITripleIndex dataset, IEnumerable<INode> nodes)
Parameters
Type Name Description
IRdfHandler handler

RDF Handler.
ITripleIndex dataset

Dataset to extract descriptions from.
System.Collections.Generic.IEnumerable<T><INode> nodes

Nodes to be described.
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RewriteDescribeBNodes(Triple, Dictionary<string, INode>, INodeFactory)

Helper method which rewrites Blank Node IDs for Describe Queries.

Declaration
protected Triple RewriteDescribeBNodes(Triple t, Dictionary<string, INode> mapping, INodeFactory factory)
Parameters
Type Name Description
Triple t

Triple.
System.Collections.Generic.Dictionary<TKey, TValue><string, INode> mapping

Mapping of IDs to new Blank Nodes.
INodeFactory factory

Factory to create Nodes in.
Returns
Type Description
Triple

Implements

Extension Methods