org.roaringbitmap.buffer

Interface MappeableContainerPointer

All Superinterfaces:

Cloneable, Comparable<MappeableContainerPointer>

public interface MappeableContainerPointer
extends Comparable<MappeableContainerPointer>, Cloneable

This interface allows you to iterate over the containers in a roaring bitmap.

Method Summary

Modifier and Type	Method and Description
void	advance() Move to the next container
MappeableContainerPointer	clone() Create a copy
int	getCardinality() Returns the cardinality of the current container.
MappeableContainer	getContainer() This method can be used to check whether there is current a valid container as it returns null when there is not.
int	getSizeInBytes() Get the size in bytes of the container.
boolean	hasContainer()
boolean	isBitmapContainer() Returns true if it is a bitmap container (MappeableBitmapContainer).
boolean	isRunContainer() Returns true if it is a run container (MappeableRunContainer).
short	key() The key is a 16-bit integer that indicates the position of the container in the roaring bitmap.
void	previous() Move to the previous container

Methods inherited from interface java.lang.Comparable

compareTo

Method Detail

advance

void advance()

Move to the next container

clone

MappeableContainerPointer clone()

Create a copy

Returns:

return a clone of this pointer

getCardinality

int getCardinality()

Returns the cardinality of the current container. Can be faster than loading the container first.

Returns:

cardinality of the current container

getContainer

MappeableContainer getContainer()

This method can be used to check whether there is current a valid container as it returns null when there is not.

Returns:

null or the current container

getSizeInBytes

int getSizeInBytes()

Get the size in bytes of the container. Used for sorting.

Returns:

the size in bytes

hasContainer

boolean hasContainer()

Returns:

whether there is a container at the current position

isBitmapContainer

boolean isBitmapContainer()

Returns true if it is a bitmap container (MappeableBitmapContainer).

Returns:

boolean indicated if it is a bitmap container

isRunContainer

boolean isRunContainer()

Returns true if it is a run container (MappeableRunContainer).

Returns:

boolean indicated if it is a run container

key

short key()

The key is a 16-bit integer that indicates the position of the container in the roaring bitmap. To be interpreted as an unsigned integer.

Returns:

the key

previous

void previous()

Move to the previous container