com.googlecode.javaewah

Interface IteratingRLW

All Known Implementing Classes:

BufferedIterator, IteratingBufferedRunningLengthWord

public interface IteratingRLW

High-level iterator over a compressed bitmap.

Method Summary

Modifier and Type	Method and Description
IteratingRLW	clone()
void	discardFirstWords(long x)
void	discardRunningWords() Discard all running words
long	getLiteralWordAt(int index)
int	getNumberOfLiteralWords()
boolean	getRunningBit()
long	getRunningLength()
boolean	next()
long	size()

Method Detail

next

boolean next()

Returns:

whether there is more

getLiteralWordAt

long getLiteralWordAt(int index)

Parameters:

index - where the literal word is

Returns:

the literal word at the given index.

getNumberOfLiteralWords

int getNumberOfLiteralWords()

Returns:

the number of literal (non-fill) words

getRunningBit

boolean getRunningBit()

Returns:

the bit used for the fill bits

size

long size()

Returns:

sum of getRunningLength() and getNumberOfLiteralWords()

getRunningLength

long getRunningLength()

Returns:

length of the run of fill words

discardFirstWords

void discardFirstWords(long x)

Parameters:

x - the number of words to discard

discardRunningWords

void discardRunningWords()

Discard all running words

clone

IteratingRLW clone()
            throws CloneNotSupportedException

Returns:

a copy of the iterator

Throws:

CloneNotSupportedException - this should not be thrown in theory