Class PartitionedMultiset

Implementation of a multiset which is suitable for multiple threads to write to in parallel, useful for parallelizing certain operations.

Inheritance

object

BaseMultiset

PartitionedMultiset

Inherited Members

BaseMultiset._orderedIDs

BaseMultiset.VirtualCount

BaseMultiset.UsePLinqEvaluation

BaseMultiset.Join(BaseMultiset)

BaseMultiset.LeftJoin(BaseMultiset, ISparqlExpression, SparqlEvaluationContext, ISparqlExpressionProcessor<IValuedNode, SparqlEvaluationContext, int>)

BaseMultiset.ExistsJoin(BaseMultiset, bool)

BaseMultiset.MinusJoin(BaseMultiset)

BaseMultiset.Product(BaseMultiset)

BaseMultiset.Merge(BaseMultiset)

BaseMultiset.Sort(IComparer<ISet>)

BaseMultiset.ToString()

object.Equals(object)

object.Equals(object, object)

object.GetHashCode()

object.GetType()

object.MemberwiseClone()

object.ReferenceEquals(object, object)

Namespace: VDS.RDF.Query.Algebra

Assembly: dotNetRdf.dll

Syntax

public class PartitionedMultiset : BaseMultiset

Constructors

PartitionedMultiset(int, int)

Creates a new Partionted Multiset.

Declaration

public PartitionedMultiset(int numPartitions, int partitionSize)

Parameters

Type	Name	Description
int	numPartitions	Number of partitions.
int	partitionSize	Partition Size.

Properties

Count

Gets the number of sets in the multiset.

Declaration

public override int Count { get; }

Property Value

Type	Description
int

Overrides

BaseMultiset.Count

IsEmpty

Gets whether the multiset is empty.

Declaration

public override bool IsEmpty { get; }

Property Value

Type	Description
bool

Overrides

BaseMultiset.IsEmpty

this[int]

Gets a Set from the multiset.

Declaration

public override ISet this[int id] { get; }

Parameters

Type	Name	Description
int	id

Property Value

Type	Description
ISet

Overrides

BaseMultiset.this[int]

SetIDs

Gets the Set IDs in the mutliset.

Declaration

public override IEnumerable<int> SetIDs { get; }

Property Value

Type	Description
IEnumerable<int>

Overrides

BaseMultiset.SetIDs

Sets

Gets the sets in the multiset.

Declaration

public override IEnumerable<ISet> Sets { get; }

Property Value

Type	Description
IEnumerable<ISet>

Overrides

BaseMultiset.Sets

Variables

Gets the variables in the multiset.

Declaration

public override IEnumerable<string> Variables { get; }

Property Value

Type	Description
IEnumerable<string>

Overrides

BaseMultiset.Variables

Methods

Add(ISet)

Adds a Set to the multiset.

Declaration

public override void Add(ISet s)

Parameters

Type	Name	Description
ISet	s	Set.

Overrides

BaseMultiset.Add(ISet)

Remarks

Assumes the caller has set the ID of the set appropriately and will use this to determine which partition to add to.

AddVariable(string)

Adds a Variable to the multiset.

Declaration

public override void AddVariable(string variable)

Parameters

Type	Name	Description
string	variable	Variable.

Overrides

BaseMultiset.AddVariable(string)

ContainsValue(string, INode)

Determines whether a given Value is present for a given Variable in any Set in this Multiset.

Declaration

public override bool ContainsValue(string var, INode n)

Parameters

Type	Name	Description
string	var	Variable.
INode	n	Value.

Returns

Type	Description
bool

Overrides

BaseMultiset.ContainsValue(string, INode)

ContainsVariable(string)

Returns whether a given Variable is present in any Set in this Multiset.

Declaration

public override bool ContainsVariable(string var)

Parameters

Type	Name	Description
string	var	Variable.

Returns

Type	Description
bool

Overrides

BaseMultiset.ContainsVariable(string)

ContainsVariables(IEnumerable<string>)

Returns whether the given Variables are present in any Set in this Multiset.

Declaration

public override bool ContainsVariables(IEnumerable<string> vars)

Parameters

Type	Name	Description
IEnumerable<string>	vars	Variables.

Returns

Type	Description
bool

Overrides

BaseMultiset.ContainsVariables(IEnumerable<string>)

GetNextBaseID()

Gets the next Base ID to be used.

Declaration

public int GetNextBaseID()

Returns

Type	Description
int

IsDisjointWith(BaseMultiset)

Determines whether this Multiset is disjoint with another Multiset.

Declaration

public override bool IsDisjointWith(BaseMultiset other)

Parameters

Type	Name	Description
BaseMultiset	other	Other Multiset.

Returns

Type	Description
bool

Overrides

BaseMultiset.IsDisjointWith(BaseMultiset)

Remove(int)

Removes a Set from the multiset.

Declaration

public override void Remove(int id)

Parameters

Type	Name	Description
int	id	Set ID.

Overrides

BaseMultiset.Remove(int)

SetVariableOrder(IEnumerable<string>)

Sets the variable ordering for the multiset.

Declaration

public override void SetVariableOrder(IEnumerable<string> variables)

Parameters

Type	Name	Description
IEnumerable<string>	variables	Variable Ordering.

Overrides

BaseMultiset.SetVariableOrder(IEnumerable<string>)

Trim()

Removes temporary variables from all sets the multiset.

Declaration

public override void Trim()

Overrides

BaseMultiset.Trim()

Trim(string)

Removes a specific variable from all sets in the multiset.

Declaration

public override void Trim(string variable)

Parameters

Type	Name	Description
string	variable	Variable.

Overrides

BaseMultiset.Trim(string)

Union(BaseMultiset)

Does a Union of this Multiset and another Multiset.

Declaration

public override BaseMultiset Union(BaseMultiset other)

Parameters

Type	Name	Description
BaseMultiset	other	Other Multiset.

Returns

Type	Description
BaseMultiset

Overrides

BaseMultiset.Union(BaseMultiset)

Extension Methods

Extensions.ToSafeString(object)

AlgebraExtensions.ProductWithTimeout(BaseMultiset, BaseMultiset, long)

Extensions.AsEnumerable<T>(T)