com.googlecode.javaewah

Class EWAHIterator

java.lang.Object

com.googlecode.javaewah.EWAHIterator

public final class EWAHIterator
extends java.lang.Object

The class EWAHIterator represents a special type of efficient iterator iterating over (uncompressed) words of bits.

Since:

0.1.0

Author:

Daniel Lemire

Constructor Summary

Constructors

Constructor and Description
EWAHIterator(long[] a, int sizeinwords) Instantiates a new eWAH iterator.

Method Summary

Methods

Modifier and Type	Method and Description
long[]	buffer() Access to the array of words
static EWAHIterator	getEWAHIterator(EWAHCompressedBitmap bitmap) Allow expert developers to instantiate an EWAHIterator.
boolean	hasNext() Checks for next.
int	literalWords() Position of the literal words represented by this running length word.
RunningLengthWord	next() Next running length word.

Methods inherited from class java.lang.Object

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

Constructor Detail

EWAHIterator

public EWAHIterator(long[] a,
            int sizeinwords)

Instantiates a new eWAH iterator.

Parameters:

a - the array of words

sizeinwords - the number of words that are significant in the array of words

Method Detail

getEWAHIterator

public static EWAHIterator getEWAHIterator(EWAHCompressedBitmap bitmap)

Allow expert developers to instantiate an EWAHIterator.

Parameters:

bitmap -

Returns:

an iterator

buffer

public long[] buffer()

Access to the array of words

Returns:

the long[]

literalWords

public int literalWords()

Position of the literal words represented by this running length word.

Returns:

the int

hasNext

public boolean hasNext()

Checks for next.

Returns:

true, if successful

next

public RunningLengthWord next()

Next running length word.

Returns:

the running length word