Package org.apache.cassandra.utils.obs

Class OffHeapBitSet

java.lang.Object

org.apache.cassandra.utils.obs.OffHeapBitSet

All Implemented Interfaces:

java.io.Closeable, java.lang.AutoCloseable, IBitSet

public class OffHeapBitSet
extends java.lang.Object
implements IBitSet

Off-heap bitset, file compatible with OpeBitSet

Constructor Summary

Constructors

Constructor	Description
OffHeapBitSet(long numBits)

Method Summary

Modifier and Type	Method	Description
void	addTo(Ref.IdentityCollection identities)
long	capacity()
void	clear()
void	clear(long index)	clears the bit.
void	close()
static OffHeapBitSet	deserialize(java.io.DataInputStream in, boolean oldBfFormat)
boolean	equals(java.lang.Object o)
boolean	get(long index)	Returns true or false for the specified bit index.
int	hashCode()
long	offHeapSize()	Returns the amount of memory in bytes used off heap.
void	serialize(DataOutputPlus out)
long	serializedSize()
void	serializeOldBfFormat(DataOutputPlus out)
void	set(long index)	Sets the bit at the specified index.
void	set(long offset, byte b)
java.lang.String	toString()

Methods inherited from class java.lang.Object

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

Constructor Detail

OffHeapBitSet

public OffHeapBitSet(long numBits)

Method Detail

capacity

public long capacity()

Specified by:

capacity in interface IBitSet

offHeapSize

public long offHeapSize()

Description copied from interface: IBitSet

Returns the amount of memory in bytes used off heap.

Specified by:

offHeapSize in interface IBitSet

Returns:

the amount of memory in bytes used off heap

addTo

public void addTo(Ref.IdentityCollection identities)

Specified by:

addTo in interface IBitSet

get

public boolean get(long index)

Description copied from interface: IBitSet

Returns true or false for the specified bit index. The index should be less than the capacity.

Specified by:

get in interface IBitSet

set

public void set(long index)

Description copied from interface: IBitSet

Sets the bit at the specified index. The index should be less than the capacity.

Specified by:

set in interface IBitSet

set

public void set(long offset,
                byte b)

clear

public void clear(long index)

Description copied from interface: IBitSet

clears the bit. The index should be less than the capacity.

Specified by:

clear in interface IBitSet

clear

public void clear()

Specified by:

clear in interface IBitSet

serialize

public void serialize(DataOutputPlus out)
               throws java.io.IOException

Specified by:

serialize in interface IBitSet

Throws:

java.io.IOException

serializeOldBfFormat

public void serializeOldBfFormat(DataOutputPlus out)
                          throws java.io.IOException

Throws:

java.io.IOException

serializedSize

public long serializedSize()

Specified by:

serializedSize in interface IBitSet

deserialize

public static OffHeapBitSet deserialize(java.io.DataInputStream in,
                                        boolean oldBfFormat)
                                 throws java.io.IOException

Throws:

java.io.IOException

close

public void close()

Specified by:

close in interface java.lang.AutoCloseable

Specified by:

close in interface java.io.Closeable

Specified by:

close in interface IBitSet

equals

public boolean equals(java.lang.Object o)

Overrides:

equals in class java.lang.Object

hashCode

public int hashCode()

Overrides:

hashCode in class java.lang.Object

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object