Class PartitionedMultiset

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

Inheritance
System.Object
BaseMultiset
PartitionedMultiset
Inherited Members
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

| Improve this Doc View Source

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

| Improve this Doc View Source

Count

Gets the number of sets in the multiset.

Declaration
public override int Count { get; }
Property Value
Type Description
int
Overrides
| Improve this Doc View Source

IsEmpty

Gets whether the multiset is empty.

Declaration
public override bool IsEmpty { get; }
Property Value
Type Description
System.Boolean
Overrides
| Improve this Doc View Source

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
| Improve this Doc View Source

SetIDs

Gets the Set IDs in the mutliset.

Declaration
public override IEnumerable<int> SetIDs { get; }
Property Value
Type Description
System.Collections.Generic.IEnumerable<T><int>
Overrides
| Improve this Doc View Source

Sets

Gets the sets in the multiset.

Declaration
public override IEnumerable<ISet> Sets { get; }
Property Value
Type Description
System.Collections.Generic.IEnumerable<T><ISet>
Overrides
| Improve this Doc View Source

Variables

Gets the variables in the multiset.

Declaration
public override IEnumerable<string> Variables { get; }
Property Value
Type Description
System.Collections.Generic.IEnumerable<T><string>
Overrides

Methods

| Improve this Doc View Source

Add(ISet)

Adds a Set to the multiset.

Declaration
public override void Add(ISet s)
Parameters
Type Name Description
ISet s

Set.
Overrides
Remarks

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

| Improve this Doc View Source

AddVariable(string)

Adds a Variable to the multiset.

Declaration
public override void AddVariable(string variable)
Parameters
Type Name Description
string variable

Variable.
Overrides
| Improve this Doc View Source

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
System.Boolean
Overrides
| Improve this Doc View Source

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
System.Boolean
Overrides
| Improve this Doc View Source

ContainsVariables(IEnumerable<string>)

Declaration
public override bool ContainsVariables(IEnumerable<string> vars)
Parameters
Type Name Description
System.Collections.Generic.IEnumerable<T><string> vars
Returns
Type Description
System.Boolean
Overrides
| Improve this Doc View Source

GetNextBaseID()

Gets the next Base ID to be used.

Declaration
public int GetNextBaseID()
Returns
Type Description
int
| Improve this Doc View Source

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
System.Boolean
Overrides
| Improve this Doc View Source

Remove(int)

Removes a Set from the multiset.

Declaration
public override void Remove(int id)
Parameters
Type Name Description
int id

Set ID.
Overrides
| Improve this Doc View Source

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<T><string> variables

Variable Ordering.
Overrides
| Improve this Doc View Source

Trim()

Removes temporary variables from all sets the multiset.

Declaration
public override void Trim()
Overrides
| Improve this Doc View Source

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
| Improve this Doc View Source

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

Extension Methods