io.druid.collections.bitmap

Class WrappedImmutableBitSetBitmap

java.lang.Object

io.druid.collections.bitmap.WrappedImmutableBitSetBitmap

All Implemented Interfaces:

ImmutableBitmap

Direct Known Subclasses:

WrappedBitSetBitmap

public class WrappedImmutableBitSetBitmap
extends Object
implements ImmutableBitmap

WrappedImmutableBitSetBitmap implements ImmutableBitmap for java.util.BitSet

Field Summary

Fields

Modifier and Type	Field and Description
protected BitSet	bitmap

Constructor Summary

Constructors

Constructor and Description
WrappedImmutableBitSetBitmap()
WrappedImmutableBitSetBitmap(BitSet bitmap)
WrappedImmutableBitSetBitmap(ByteBuffer byteBuffer)

Method Summary

Modifier and Type	Method and Description
boolean	get(int value) Returns true if the bit at position value is set
ImmutableBitmap	intersection(ImmutableBitmap otherBitmap) Compute the bitwise-and of this bitmap with another bitmap.
boolean	isEmpty()
org.roaringbitmap.IntIterator	iterator()
int	size()
byte[]	toBytes()
ImmutableBitmap	union(ImmutableBitmap otherBitmap)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

bitmap

protected final BitSet bitmap

Constructor Detail

WrappedImmutableBitSetBitmap

public WrappedImmutableBitSetBitmap(BitSet bitmap)

WrappedImmutableBitSetBitmap

public WrappedImmutableBitSetBitmap()

WrappedImmutableBitSetBitmap

public WrappedImmutableBitSetBitmap(ByteBuffer byteBuffer)

Method Detail

iterator

public org.roaringbitmap.IntIterator iterator()

Specified by:

iterator in interface ImmutableBitmap

Returns:

an iterator over the set bits of this bitmap

get

public boolean get(int value)

Description copied from interface: ImmutableBitmap

Returns true if the bit at position value is set

Specified by:

get in interface ImmutableBitmap

Parameters:

value - the position to check

Returns:

true if bit is set

size

public int size()

Specified by:

size in interface ImmutableBitmap

Returns:

The number of bits set to true in this bitmap

toBytes

public byte[] toBytes()

Specified by:

toBytes in interface ImmutableBitmap

isEmpty

public boolean isEmpty()

Specified by:

isEmpty in interface ImmutableBitmap

Returns:

True if this bitmap is empty (contains no set bit)

union

public ImmutableBitmap union(ImmutableBitmap otherBitmap)

intersection

public ImmutableBitmap intersection(ImmutableBitmap otherBitmap)

Description copied from interface: ImmutableBitmap

Compute the bitwise-and of this bitmap with another bitmap. A new bitmap is generated. Note that the other bitmap should be of the same class instance.

Specified by:

intersection in interface ImmutableBitmap

Parameters:

otherBitmap - other bitmap