程序包 org.apache.pulsar.common.util.collections

类 ConcurrentBitSet

java.lang.Object

java.util.BitSet

org.apache.pulsar.common.util.collections.ConcurrentBitSet

所有已实现的接口:

Serializable, Cloneable

直接已知子类:

ConcurrentBitSetRecyclable

public class ConcurrentBitSet
extends BitSet

A BitSet that is protected by a StampedLock to provide thread-safe access. The BitSet.length() method is not thread safe and is not overridden because StampedLock is not reentrant. Use the safeLength() method to get the length of the bit set in a thread-safe manner.

另请参阅:

• 序列化表格

构造器概要

构造器

构造器	说明
ConcurrentBitSet()
ConcurrentBitSet(int nbits)	Creates a bit set whose initial size is large enough to explicitly represent bits with indices in the range 0 through nbits-1.

方法概要

修饰符和类型	方法	说明
void	and(BitSet set)
void	andNot(BitSet set)
int	cardinality()
void	clear()
void	clear(int bitIndex)
void	clear(int fromIndex, int toIndex)
Object	clone()	Returns the clone of the internal wrapped BitSet.
boolean	equals(Object o)
void	flip(int bitIndex)
void	flip(int fromIndex, int toIndex)
boolean	get(int bitIndex)
BitSet	get(int fromIndex, int toIndex)
int	hashCode()
boolean	intersects(BitSet set)
boolean	isEmpty()
int	nextClearBit(int fromIndex)
int	nextSetBit(int fromIndex)
void	or(BitSet set)
int	previousClearBit(int fromIndex)
int	previousSetBit(int fromIndex)
int	safeLength()	Thread-safe version of length().
void	set(int bitIndex)
void	set(int bitIndex, boolean value)
void	set(int fromIndex, int toIndex)
void	set(int fromIndex, int toIndex, boolean value)
int	size()
IntStream	stream()	This operation is not supported on ConcurrentBitSet.
byte[]	toByteArray()
long[]	toLongArray()
String	toString()
void	xor(BitSet set)

从类继承的方法 java.util.BitSet

length, valueOf, valueOf, valueOf, valueOf

从类继承的方法 java.lang.Object

finalize, getClass, notify, notifyAll, wait, wait, wait

构造器详细资料

ConcurrentBitSet

public ConcurrentBitSet()

ConcurrentBitSet

public ConcurrentBitSet(int nbits)

Creates a bit set whose initial size is large enough to explicitly represent bits with indices in the range 0 through nbits-1. All bits are initially false.

参数:

nbits - the initial size of the bit set

抛出:

NegativeArraySizeException - if the specified initial size is negative

方法详细资料

get

public boolean get(int bitIndex)

覆盖:

get 在类中 BitSet

set

public void set(int bitIndex)

覆盖:

set 在类中 BitSet

clear

public void clear(int bitIndex)

覆盖:

clear 在类中 BitSet

set

public void set(int fromIndex,
 int toIndex)

覆盖:

set 在类中 BitSet

clear

public void clear(int fromIndex,
 int toIndex)

覆盖:

clear 在类中 BitSet

clear

public void clear()

覆盖:

clear 在类中 BitSet

nextSetBit

public int nextSetBit(int fromIndex)

覆盖:

nextSetBit 在类中 BitSet

nextClearBit

public int nextClearBit(int fromIndex)

覆盖:

nextClearBit 在类中 BitSet

previousSetBit

public int previousSetBit(int fromIndex)

覆盖:

previousSetBit 在类中 BitSet

previousClearBit

public int previousClearBit(int fromIndex)

覆盖:

previousClearBit 在类中 BitSet

isEmpty

public boolean isEmpty()

覆盖:

isEmpty 在类中 BitSet

cardinality

public int cardinality()

覆盖:

cardinality 在类中 BitSet

size

public int size()

覆盖:

size 在类中 BitSet

toByteArray

public byte[] toByteArray()

覆盖:

toByteArray 在类中 BitSet

toLongArray

public long[] toLongArray()

覆盖:

toLongArray 在类中 BitSet

flip

public void flip(int bitIndex)

覆盖:

flip 在类中 BitSet

flip

public void flip(int fromIndex,
 int toIndex)

覆盖:

flip 在类中 BitSet

set

public void set(int bitIndex,
 boolean value)

覆盖:

set 在类中 BitSet

set

public void set(int fromIndex,
 int toIndex,
 boolean value)

覆盖:

set 在类中 BitSet

get

public BitSet get(int fromIndex,
 int toIndex)

覆盖:

get 在类中 BitSet

safeLength

public int safeLength()

Thread-safe version of length(). StampedLock is not reentrant and that's why the length() method is not overridden. Overriding length() method would require to use a reentrant lock which would be less performant.

返回:

length of the bit set

intersects

public boolean intersects(BitSet set)

覆盖:

intersects 在类中 BitSet

and

public void and(BitSet set)

覆盖:

and 在类中 BitSet

or

public void or(BitSet set)

覆盖:

or 在类中 BitSet

xor

public void xor(BitSet set)

覆盖:

xor 在类中 BitSet

andNot

public void andNot(BitSet set)

覆盖:

andNot 在类中 BitSet

clone

public Object clone()

Returns the clone of the internal wrapped BitSet. This won't be a clone of the ConcurrentBitSet object.

覆盖:

clone 在类中 BitSet

返回:

a clone of the internal wrapped BitSet

toString

public String toString()

覆盖:

toString 在类中 BitSet

stream

public IntStream stream()

This operation is not supported on ConcurrentBitSet.

覆盖:

stream 在类中 BitSet

equals

public boolean equals(Object o)

覆盖:

equals 在类中 BitSet

hashCode

public int hashCode()

覆盖:

hashCode 在类中 BitSet