org.elasticsearch.common.lucene.docset
Class SlicedOpenBitSet

java.lang.Object
  org.apache.lucene.search.DocIdSet
      org.elasticsearch.common.lucene.docset.DocSet
          org.elasticsearch.common.lucene.docset.SlicedOpenBitSet

public class SlicedOpenBitSet
extends DocSet

Derived from OpenBitSet but works from a slice out of a provided long[] array. It does not expand, as it assumes that the slice is from a cached long[] array, so we can't really expand...

Nested Class Summary

static class

SlicedOpenBitSet.SlicedIterator An iterator to iterate over set bits in an OpenBitSet.

Field Summary

Fields inherited from class org.elasticsearch.common.lucene.docset.DocSet

EMPTY_DOC_SET

Fields inherited from class org.apache.lucene.search.DocIdSet

EMPTY_DOCIDSET

Constructor Summary

SlicedOpenBitSet(long[] bits, int wlen, int from)

SlicedOpenBitSet(long[] bits, int from, org.apache.lucene.util.OpenBitSet setToCopy)

Method Summary

long	capacity() Returns the current capacity in bits (1 greater than the index of the last bit)
long	cardinality()
boolean	fastGet(int index) Returns true or false for the specified bit index.
boolean	fastGet(long index) Returns true or false for the specified bit index.
void	fastSet(int index) Sets the bit at the specified index.
void	fastSet(long index) Sets the bit at the specified index.
boolean	get(int index) Returns true or false for the specified bit index.
boolean	get(long index) Returns true or false for the specified bit index
boolean	isCacheable()
org.apache.lucene.search.DocIdSetIterator	iterator()
long	size() Returns the current capacity of this set.
long	sizeInBytes()

Methods inherited from class java.lang.Object

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

Constructor Detail

SlicedOpenBitSet

public SlicedOpenBitSet(long[] bits,
                        int from,
                        org.apache.lucene.util.OpenBitSet setToCopy)

SlicedOpenBitSet

public SlicedOpenBitSet(long[] bits,
                        int wlen,
                        int from)

Method Detail

isCacheable

public boolean isCacheable()

Overrides:

isCacheable in class org.apache.lucene.search.DocIdSet

sizeInBytes

public long sizeInBytes()

Specified by:

sizeInBytes in class DocSet

capacity

public long capacity()

Returns the current capacity in bits (1 greater than the index of the last bit)

size

public long size()

Returns the current capacity of this set. Included for compatibility. This is *not* equal to cardinality()

cardinality

public long cardinality()

Returns:

the number of set bits

get

public boolean get(int index)

Returns true or false for the specified bit index.

Specified by:

get in class DocSet

fastGet

public boolean fastGet(int index)

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

get

public boolean get(long index)

Returns true or false for the specified bit index

fastGet

public boolean fastGet(long index)

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

fastSet

public void fastSet(int index)

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

fastSet

public void fastSet(long index)

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

iterator

public org.apache.lucene.search.DocIdSetIterator iterator()
                                                   throws java.io.IOException

Specified by:

iterator in class org.apache.lucene.search.DocIdSet

Throws:

java.io.IOException