Class Int64BitSet

BitSet of fixed length (Lucene.Net.Util.Int64BitSet.numBits), backed by accessible (GetBits()) long[], accessed with a System.Int64 index. Use it only if you intend to store more than 2.1B bits, otherwise you should use FixedBitSet.

NOTE: This was LongBitSet in Lucene

Note

This API is for internal purposes only and might change in incompatible ways in the next release.

Inheritance

System.Object

Int64BitSet

Inherited Members

System.Object.Equals(System.Object, System.Object)

System.Object.GetType()

System.Object.MemberwiseClone()

System.Object.ReferenceEquals(System.Object, System.Object)

System.Object.ToString()

Namespace: Lucene.Net.Util

Assembly: Lucene.Net.dll

Syntax

[Serializable]
public sealed class Int64BitSet

Constructors

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Int64BitSet(Int64)

Declaration

public Int64BitSet(long numBits)

Parameters

Type	Name	Description
System.Int64	numBits

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Int64BitSet(Int64[], Int64)

Declaration

public Int64BitSet(long[] storedBits, long numBits)

Parameters

Type	Name	Description
System.Int64[]	storedBits
System.Int64	numBits

Properties

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Cardinality

Gets the number of set bits. NOTE: this visits every long in the backing bits array, and the result is not internally cached!

Declaration

public long Cardinality { get; }

Property Value

Type	Description
System.Int64

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Length

Returns the number of bits stored in this bitset.

Declaration

public long Length { get; }

Property Value

Type	Description
System.Int64

Methods

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And(Int64BitSet)

this = this AND other

Declaration

public void And(Int64BitSet other)

Parameters

Type	Name	Description
Int64BitSet	other

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AndNot(Int64BitSet)

this = this AND NOT other

Declaration

public void AndNot(Int64BitSet other)

Parameters

Type	Name	Description
Int64BitSet	other

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Bits2words(Int64)

Returns the number of 64 bit words it would take to hold numBits.

Declaration

public static int Bits2words(long numBits)

Parameters

Type	Name	Description
System.Int64	numBits

Returns

Type	Description
System.Int32

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Clear(Int64)

Declaration

public void Clear(long index)

Parameters

Type	Name	Description
System.Int64	index

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Clear(Int64, Int64)

Clears a range of bits.

Declaration

public void Clear(long startIndex, long endIndex)

Parameters

Type	Name	Description
System.Int64	startIndex	Lower index
System.Int64	endIndex	One-past the last bit to clear

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Clone()

Declaration

public Int64BitSet Clone()

Returns

Type	Description
Int64BitSet

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EnsureCapacity(Int64BitSet, Int64)

If the given Int64BitSet is large enough to hold numBits, returns the given bits, otherwise returns a new Int64BitSet which can hold the requested number of bits.

NOTE: the returned bitset reuses the underlying long[] of the given bits if possible. Also, reading Length on the returned bits may return a value greater than numBits.

Declaration

public static Int64BitSet EnsureCapacity(Int64BitSet bits, long numBits)

Parameters

Type	Name	Description
Int64BitSet	bits
System.Int64	numBits

Returns

Type	Description
Int64BitSet

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Equals(Object)

Returns true if both sets have the same bits set

Declaration

public override bool Equals(object o)

Parameters

Type	Name	Description
System.Object	o

Returns

Type	Description
System.Boolean

Overrides

System.Object.Equals(System.Object)

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Flip(Int64, Int64)

Flips a range of bits

Declaration

public void Flip(long startIndex, long endIndex)

Parameters

Type	Name	Description
System.Int64	startIndex	Lower index
System.Int64	endIndex	One-past the last bit to flip

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Get(Int64)

Declaration

public bool Get(long index)

Parameters

Type	Name	Description
System.Int64	index

Returns

Type	Description
System.Boolean

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GetAndClear(Int64)

Declaration

public bool GetAndClear(long index)

Parameters

Type	Name	Description
System.Int64	index

Returns

Type	Description
System.Boolean

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GetAndSet(Int64)

Declaration

public bool GetAndSet(long index)

Parameters

Type	Name	Description
System.Int64	index

Returns

Type	Description
System.Boolean

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GetBits()

Expert.

Declaration

public long[] GetBits()

Returns

Type	Description
System.Int64[]

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GetHashCode()

Declaration

public override int GetHashCode()

Returns

Type	Description
System.Int32

Overrides

System.Object.GetHashCode()

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Intersects(Int64BitSet)

Returns true if the sets have any elements in common

Declaration

public bool Intersects(Int64BitSet other)

Parameters

Type	Name	Description
Int64BitSet	other

Returns

Type	Description
System.Boolean

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NextSetBit(Int64)

Returns the index of the first set bit starting at the index specified. -1 is returned if there are no more set bits.

Declaration

public long NextSetBit(long index)

Parameters

Type	Name	Description
System.Int64	index

Returns

Type	Description
System.Int64

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Or(Int64BitSet)

this = this OR other

Declaration

public void Or(Int64BitSet other)

Parameters

Type	Name	Description
Int64BitSet	other

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PrevSetBit(Int64)

Returns the index of the last set bit before or on the index specified. -1 is returned if there are no more set bits.

Declaration

public long PrevSetBit(long index)

Parameters

Type	Name	Description
System.Int64	index

Returns

Type	Description
System.Int64

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Set(Int64)

Declaration

public void Set(long index)

Parameters

Type	Name	Description
System.Int64	index

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Set(Int64, Int64)

Sets a range of bits

Declaration

public void Set(long startIndex, long endIndex)

Parameters

Type	Name	Description
System.Int64	startIndex	Lower index
System.Int64	endIndex	One-past the last bit to set

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Xor(Int64BitSet)

this = this XOR other

Declaration

public void Xor(Int64BitSet other)

Parameters

Type	Name	Description
Int64BitSet	other