Class ChainFilter

Generic Filter for use where multiple Filters are applied on a single Graph Pattern.
Inheritance
System.Object
ChainFilter
Implements
Inherited Members
System.Object.Equals(System.Object)
System.Object.Equals(System.Object, System.Object)
System.Object.GetHashCode()
System.Object.GetType()
System.Object.MemberwiseClone()
System.Object.ReferenceEquals(System.Object, System.Object)
Namespace: VDS.RDF.Query.Filters
Assembly: dotNetRDF.dll
Syntax
public class ChainFilter : ISparqlFilter

Constructors

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ChainFilter(IEnumerable<ISparqlFilter>)

Creates a new Chain Filter.
Declaration
public ChainFilter(IEnumerable<ISparqlFilter> filters)
Parameters
Type Name Description
System.Collections.Generic.IEnumerable<ISparqlFilter> filters Filters.
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ChainFilter(ISparqlFilter, IEnumerable<ISparqlFilter>)

Creates a new Chain Filter.
Declaration
public ChainFilter(ISparqlFilter first, IEnumerable<ISparqlFilter> rest)
Parameters
Type Name Description
ISparqlFilter first First Filter.
System.Collections.Generic.IEnumerable<ISparqlFilter> rest Additional Filters.
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ChainFilter(ISparqlFilter, ISparqlFilter)

Creates a new Chain Filter.
Declaration
public ChainFilter(ISparqlFilter first, ISparqlFilter second)
Parameters
Type Name Description
ISparqlFilter first First Filter.
ISparqlFilter second Second Filter.

Properties

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Expression

Gets the Inner Expression used by the Chained Filters.
Declaration
public ISparqlExpression Expression { get; }
Property Value
Type Description
ISparqlExpression
Remarks
Equivalent to ANDing all the Chained Filters expressions.
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Variables

Gets the enumeration of Variables used in the chained Filters.
Declaration
public IEnumerable<string> Variables { get; }
Property Value
Type Description
System.Collections.Generic.IEnumerable<System.String>

Methods

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Add(ISparqlFilter)

Adds an additional Filter to the Filter Chain.
Declaration
protected void Add(ISparqlFilter filter)
Parameters
Type Name Description
ISparqlFilter filter A Filter to add.
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Evaluate(SparqlEvaluationContext)

Evaluates a filter in the given Evaluation Context.
Declaration
public void Evaluate(SparqlEvaluationContext context)
Parameters
Type Name Description
SparqlEvaluationContext context Evaluation Context.
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ToString()

Gets the String representation of the Filters.
Declaration
public override string ToString()
Returns
Type Description
System.String
Overrides
System.Object.ToString()

Implements

Extension Methods