Class DataTableHandler

RDF Handler which turns triples into rows in a Data Table

Inheritance
System.Object
BaseHandler
BaseRdfHandler
DataTableHandler
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.Data.DataTables
Assembly: dotNetRdf.Data.DataTables.dll
Syntax
public class DataTableHandler : BaseRdfHandler, IRdfHandler, INodeFactory

Constructors

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DataTableHandler(DataTable, string, string, string)

Creates a new Handler for a given Data Table with custom column names

Declaration
public DataTableHandler(DataTable table, string subjColName, string predColName, string objColName)
Parameters
Type Name Description
System.Data.DataTable table

Data Table
string subjColName

Subject Column Name
string predColName

Predicate Column Name
string objColName

Object Column Name
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DataTableHandler(DataTable)

Creates a new Handler for a given Data Table using the default column names

Declaration
public DataTableHandler(DataTable table)
Parameters
Type Name Description
System.Data.DataTable table

Data Table

Fields

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_table

Data Table into which Triples will be converted to rows

Declaration
protected DataTable _table
Field Value
Type Description
System.Data.DataTable
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DefaultObjectColumn

Constants for Default Column Names

Declaration
public const string DefaultObjectColumn = "Object"
Field Value
Type Description
string
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DefaultPredicateColumn

Constants for Default Column Names

Declaration
public const string DefaultPredicateColumn = "Predicate"
Field Value
Type Description
string
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DefaultSubjectColumn

Constants for Default Column Names

Declaration
public const string DefaultSubjectColumn = "Subject"
Field Value
Type Description
string

Properties

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AcceptsAll

Indicates that the Handler accepts all triples

Declaration
public override bool AcceptsAll { get; }
Property Value
Type Description
System.Boolean
Overrides

Methods

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HandleQuadInternal(Triple, IRefNode)

Handles a quad by turning it into a row in the Data Table

Declaration
protected override bool HandleQuadInternal(Triple t, IRefNode graph)
Parameters
Type Name Description
Triple t

Triple
IRefNode graph

The name of the graph containing the triple.
Returns
Type Description
System.Boolean
Overrides
Remarks

This implementation does not support handling triples in any graph other than the default graph. To customize how a Triple is converted into a row in the table derive from this class and override this method

Exceptions
Type Condition
RdfParseException

Raised if graph is not null, as this implementation only supports triples in the default graph.
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HandleTripleInternal(Triple)

Handles a Triple by turning it into a row in the Data Table

Declaration
protected override bool HandleTripleInternal(Triple t)
Parameters
Type Name Description
Triple t

Triple
Returns
Type Description
System.Boolean
Overrides
Remarks

To customize how a Triple is converted into a row in the table derive from this class and override this method

Implements

Extension Methods