Class Int64BitSet

BitSet of fixed length (Lucene.Net.Util.Int64BitSet.numBits), backed by accessible (GetBits()) long[], accessed with a 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

This is a Lucene.NET INTERNAL API, use at your own risk

Inheritance

System.Object

Int64BitSet

Namespace: Lucene.Net.Util

Assembly: Lucene.Net.dll

Syntax

public sealed class Int64BitSet : object

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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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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Cardinality()

Returns 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()

Returns

Type	Description
System.Int64

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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

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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

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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