Class IdentityMultiset

Represents the Identity Multiset.
Inheritance
System.Object
BaseMultiset
IdentityMultiset
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.Algebra
Assembly: dotNetRDF.dll
Syntax
public class IdentityMultiset : BaseMultiset

Properties

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IsEmpty

Returns false as the Identity Multiset is not considered empty.
Declaration
public override bool IsEmpty { get; }
Property Value
Type Description
System.Boolean
Overrides
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Item[Int32]

Gets the Set with the given ID.
Declaration
public override ISet this[int index] { get; }
Parameters
Type Name Description
System.Int32 index Set ID.
Property Value
Type Description
ISet
Overrides
Exceptions
Type Condition
RdfQueryException Thrown since the Identity Multiset contains no Sets.
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SetIDs

Returns an empty enumerable as the Identity Multiset contains no Sets.
Declaration
public override IEnumerable<int> SetIDs { get; }
Property Value
Type Description
System.Collections.Generic.IEnumerable<System.Int32>
Overrides
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Sets

Returns an empty enumerable as the Identity Multiset contains no Sets.
Declaration
public override IEnumerable<ISet> Sets { get; }
Property Value
Type Description
System.Collections.Generic.IEnumerable<ISet>
Overrides
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Variables

Returns an empty enumerable as the Identity Multiset contains no Variables.
Declaration
public override IEnumerable<string> Variables { get; }
Property Value
Type Description
System.Collections.Generic.IEnumerable<System.String>
Overrides

Methods

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Add(ISet)

Adds a Set to the Multiset.
Declaration
public override void Add(ISet s)
Parameters
Type Name Description
ISet s Set.
Overrides
Exceptions
Type Condition
RdfQueryException Thrown since this operation is invalid on an Identity Multiset.
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AddVariable(String)

Adds a Variable to the Multiset.
Declaration
public override void AddVariable(string variable)
Parameters
Type Name Description
System.String variable Variable.
Overrides
Exceptions
Type Condition
RdfQueryException Thrown since this operation is invalid on an Identity Multiset.
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ContainsValue(String, INode)

Returns True since the Identity Multiset is considered to contain all values.
Declaration
public override bool ContainsValue(string var, INode n)
Parameters
Type Name Description
System.String var Variable.
INode n Value.
Returns
Type Description
System.Boolean
Overrides
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ContainsVariable(String)

Returns False since the Identity Multiset contains no Variables.
Declaration
public override bool ContainsVariable(string var)
Parameters
Type Name Description
System.String var Variable.
Returns
Type Description
System.Boolean
Overrides
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ExistsJoin(BaseMultiset, Boolean)

Exists Joins the Multiset to another Multiset.
Declaration
public override BaseMultiset ExistsJoin(BaseMultiset other, bool mustExist)
Parameters
Type Name Description
BaseMultiset other Other Multiset.
System.Boolean mustExist Whether solutions must exist in the Other Multiset for the Join to suceed.
Returns
Type Description
BaseMultiset
Overrides
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IsDisjointWith(BaseMultiset)

Returns False since the Identity Multiset is not disjoint with anything.
Declaration
public override bool IsDisjointWith(BaseMultiset other)
Parameters
Type Name Description
BaseMultiset other Other Multiset.
Returns
Type Description
System.Boolean
Overrides
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Join(BaseMultiset)

Joins the Multiset to another Multiset.
Declaration
public override BaseMultiset Join(BaseMultiset other)
Parameters
Type Name Description
BaseMultiset other Other Multiset.
Returns
Type Description
BaseMultiset The other Multiset.
Overrides
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LeftJoin(BaseMultiset, ISparqlExpression)

Left Joins the Multiset to another Multiset.
Declaration
public override BaseMultiset LeftJoin(BaseMultiset other, ISparqlExpression expr)
Parameters
Type Name Description
BaseMultiset other Other Multiset.
ISparqlExpression expr Expression which the Join is predicated on.
Returns
Type Description
BaseMultiset The other Multiset.
Overrides
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MinusJoin(BaseMultiset)

Minus Joins this Multiset to another Multiset.
Declaration
public override BaseMultiset MinusJoin(BaseMultiset other)
Parameters
Type Name Description
BaseMultiset other Other Multiset.
Returns
Type Description
BaseMultiset
Overrides
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Product(BaseMultiset)

Generates the Product of this Set and another Multiset.
Declaration
public override BaseMultiset Product(BaseMultiset other)
Parameters
Type Name Description
BaseMultiset other Other Multiset.
Returns
Type Description
BaseMultiset The other Multiset.
Overrides
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Remove(Int32)

Removes a Set to the Multiset.
Declaration
public override void Remove(int id)
Parameters
Type Name Description
System.Int32 id Set ID.
Overrides
Exceptions
Type Condition
RdfQueryException Thrown since this operation is invalid on an Identity Multiset.
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SetVariableOrder(IEnumerable<String>)

Sets the variable ordering for the multiset.
Declaration
public override void SetVariableOrder(IEnumerable<string> variables)
Parameters
Type Name Description
System.Collections.Generic.IEnumerable<System.String> variables Variable Ordering.
Overrides
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Union(BaseMultiset)

Generates the Union of this Set and another Multiset.
Declaration
public override BaseMultiset Union(BaseMultiset other)
Parameters
Type Name Description
BaseMultiset other Other Multiset.
Returns
Type Description
BaseMultiset The other Multiset.
Overrides

Extension Methods