core/org.gnit.lucenekmp.util/LongBitSet

LongBitSet

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

Constructors

LongBitSet

constructor(numBits: Long)

Creates a new LongBitSet. The internally allocated long array will be exactly the size needed to accommodate the numBits specified.

constructor(storedBits: LongArray, numBits: Long)

Creates a new LongBitSet using the provided long[] array as backing store. The storedBits array must be large enough to accommodate the numBits specified, but may be larger. In that case the 'extra' or 'ghost' bits must be clear (or they may provoke spurious side-effects)

Types

Companion

object Companion

Properties

bits

val bits: LongArray

Expert.

childResources

open val childResources: MutableCollection<Accountable>

Returns nested resources of this class. The result should be a point-in-time snapshot (to avoid race conditions).

Functions

and

fun and(other: LongBitSet)

this = this AND other

andNot

fun andNot(other: LongBitSet)

this = this AND NOT other

cardinality

fun cardinality(): Long

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

clear

fun clear(index: Long)

fun clear(startIndex: Long, endIndex: Long)

Clears a range of bits.

clone

fun clone(): LongBitSet

equals

open operator override fun equals(o: Any?): Boolean

returns true if both sets have the same bits set

flip

fun flip(index: Long)

Flip the bit at the provided index.

fun flip(startIndex: Long, endIndex: Long)

Flips a range of bits

get

fun get(index: Long): Boolean

getAndClear

fun getAndClear(index: Long): Boolean

getAndSet

fun getAndSet(index: Long): Boolean

hashCode

open override fun hashCode(): Int

intersects

fun intersects(other: LongBitSet): Boolean

returns true if the sets have any elements in common

length

fun length(): Long

Returns the number of bits stored in this bitset.

nextSetBit

fun nextSetBit(index: Long): Long

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

fun or(other: LongBitSet)

this = this OR other

prevSetBit

fun prevSetBit(index: Long): Long

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

ramBytesUsed

open override fun ramBytesUsed(): Long

Return the memory usage of this object in bytes. Negative values are illegal.

scanIsEmpty

fun scanIsEmpty(): Boolean

Scans the backing store to check if all bits are clear. The method is deliberately not called "isEmpty" to emphasize it is not low cost (as isEmpty usually is).

set

fun set(index: Long)

fun set(startIndex: Long, endIndex: Long)

Sets a range of bits

xor

fun xor(other: LongBitSet)

this = this XOR other