jetbrains.exodus.env

Interface ContextualBitmap

All Superinterfaces:

Bitmap

public interface ContextualBitmap
extends Bitmap

Method Summary

Modifier and Type	Method and Description
boolean	clear(long bit) Sets the specified bit to false.
long	count() Returns total number of bits with the value true.
long	count(long firstBit, long lastBit) Returns number of bits with the value true in the range [firstBit, lastBit].
boolean	get(long bit) Returns true if the specified bit is set.
@NotNull ContextualEnvironment	getEnvironment()
java.lang.Long	getFirst() Returns the first (the least) bit with the value true.
java.lang.Long	getLast() Returns the last (the greatest) bit with the value true.
@NotNull jetbrains.exodus.core.dataStructures.hash.LongIterator	iterator() Creates new instance of LongIterator which iterates bit numbers with the value true in ascending order.
@NotNull jetbrains.exodus.core.dataStructures.hash.LongIterator	reverseIterator() Creates new instance of LongIterator which iterates bit numbers with the value true in descending order.
boolean	set(long bit, boolean value) Sets value of the specified bit.

Methods inherited from interface jetbrains.exodus.env.Bitmap

clear, count, count, get, getFirst, getLast, iterator, reverseIterator, set

Method Detail

getEnvironment

@NotNull
@NotNull ContextualEnvironment getEnvironment()

Specified by:

getEnvironment in interface Bitmap

Returns:

environment which the bitmap was opened for

get

boolean get(long bit)

Returns true if the specified bit is set.

Parameters:

bit - bit number

Returns:

true if specified bit is set

set

boolean set(long bit,
            boolean value)

Sets value of the specified bit.

Parameters:

bit - bit number

value - boolean value which will be set

Returns:

true if value was changed

clear

boolean clear(long bit)

Sets the specified bit to false.

Parameters:

bit - bit number

Returns:

true if value was changed

iterator

@NotNull
@NotNull jetbrains.exodus.core.dataStructures.hash.LongIterator iterator()

Creates new instance of LongIterator which iterates bit numbers with the value true in ascending order.

Returns:

new instance of LongIterator

See Also:

LongIterator

reverseIterator

@NotNull
@NotNull jetbrains.exodus.core.dataStructures.hash.LongIterator reverseIterator()

Creates new instance of LongIterator which iterates bit numbers with the value true in descending order.

Returns:

new instance of LongIterator

See Also:

LongIterator

getFirst

java.lang.Long getFirst()

Returns the first (the least) bit with the value true.

Returns:

number of the first set bit

getLast

java.lang.Long getLast()

Returns the last (the greatest) bit with the value true.

Returns:

number of the last set bit

count

long count()

Returns total number of bits with the value true.

Returns:

number of set bits

count

long count(long firstBit,
           long lastBit)

Returns number of bits with the value true in the range [firstBit, lastBit]. The range includes both firstBit and lastBit.

Parameters:

firstBit - the first (the least) bit of the range

lastBit - the last (the greatest) bit of the range

Returns:

number of set bits in the range