ch.javasoft.util.concurrent
Class ConcurrentBitSet

java.lang.Object
  ch.javasoft.util.concurrent.ConcurrentBitSet

public class ConcurrentBitSet
extends Object

An ConcurrentBitSet is pretty much the same as a BitSet, but operations on the set are performed in a thread-safe manner.

Constructor Summary

ConcurrentBitSet()

ConcurrentBitSet(BitSet bitSet)

ConcurrentBitSet(int bitCapacity)

ConcurrentBitSet(String bitString)

Method Summary

void	and(ConcurrentBitSet with)
void	andNot(ConcurrentBitSet with) This set becomes this & not with
int	cardinality()
int	cardinality(int fromBit, int toBit)
void	clear()
void	clear(int bit)
ConcurrentBitSet	clone()
boolean	compareAndSet(int bit, boolean expect, boolean update) Atomically sets the value to the given updated value if the current value == the expected value.
boolean	equals(Object obj)
void	flip(int bit)
boolean	get(int bit)
static ConcurrentBitSet	getAnd(ConcurrentBitSet setA, ConcurrentBitSet setB)
static ConcurrentBitSet	getAndNot(ConcurrentBitSet setA, ConcurrentBitSet setB) Returns setA and not setB
static ConcurrentBitSet	getOr(ConcurrentBitSet setA, ConcurrentBitSet setB)
static ConcurrentBitSet	getXor(ConcurrentBitSet setA, ConcurrentBitSet setB)
int	hashCode()
boolean	isEmpty()
boolean	isSubSetOf(ConcurrentBitSet of)
int	length()
static void	main(String[] args)
int	nextClearBit(int from)
int	nextSetBit(int from)
void	or(ConcurrentBitSet with)
static ConcurrentBitSet	readFrom(InputStream in)
void	set(int bit)
void	set(int bit, boolean value)
BitSet	toBitSet()
long[]	toLongArray()
long[]	toLongArray(long[] arr, int offset)
String	toString()
void	writeTo(OutputStream out)
void	xor(ConcurrentBitSet with) This set becomes this ^ with

Methods inherited from class java.lang.Object

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

Constructor Detail

ConcurrentBitSet

public ConcurrentBitSet()

ConcurrentBitSet

public ConcurrentBitSet(int bitCapacity)

ConcurrentBitSet

public ConcurrentBitSet(BitSet bitSet)

ConcurrentBitSet

public ConcurrentBitSet(String bitString)

Method Detail

set

public void set(int bit,
                boolean value)

set

public void set(int bit)

compareAndSet

public boolean compareAndSet(int bit,
                             boolean expect,
                             boolean update)

Atomically sets the value to the given updated value if the current value == the expected value.

Parameters:

bit - the bit index

expect - the expected value

update - the new value

Returns:

true if successful. False return indicates that the actual value was not equal to the expected value.

clear

public void clear(int bit)

clear

public void clear()

flip

public void flip(int bit)

get

public boolean get(int bit)

isSubSetOf

public boolean isSubSetOf(ConcurrentBitSet of)

and

public void and(ConcurrentBitSet with)

or

public void or(ConcurrentBitSet with)

xor

public void xor(ConcurrentBitSet with)

This set becomes this ^ with

andNot

public void andNot(ConcurrentBitSet with)

This set becomes this & not with

getXor

public static ConcurrentBitSet getXor(ConcurrentBitSet setA,
                                      ConcurrentBitSet setB)

getOr

public static ConcurrentBitSet getOr(ConcurrentBitSet setA,
                                     ConcurrentBitSet setB)

getAnd

public static ConcurrentBitSet getAnd(ConcurrentBitSet setA,
                                      ConcurrentBitSet setB)

getAndNot

public static ConcurrentBitSet getAndNot(ConcurrentBitSet setA,
                                         ConcurrentBitSet setB)

Returns setA and not setB

length

public int length()

isEmpty

public boolean isEmpty()

clone

public ConcurrentBitSet clone()

Overrides:

clone in class Object

cardinality

public int cardinality()

cardinality

public int cardinality(int fromBit,
                       int toBit)

hashCode

public int hashCode()

Overrides:

hashCode in class Object

equals

public boolean equals(Object obj)

Overrides:

equals in class Object

toString

public String toString()

Overrides:

toString in class Object

nextSetBit

public int nextSetBit(int from)

nextClearBit

public int nextClearBit(int from)

toBitSet

public BitSet toBitSet()

writeTo

public void writeTo(OutputStream out)
             throws IOException

Throws:

IOException

readFrom

public static ConcurrentBitSet readFrom(InputStream in)
                                 throws IOException

Throws:

IOException

toLongArray

public long[] toLongArray()

toLongArray

public long[] toLongArray(long[] arr,
                          int offset)

main

public static void main(String[] args)