Module org.elasticsearch.server

Package org.elasticsearch.index.codec.bloomfilter

Class DelegatingBloomFilterFieldsProducer

java.lang.Object

org.apache.lucene.index.Fields

org.apache.lucene.codecs.FieldsProducer

org.elasticsearch.index.codec.bloomfilter.DelegatingBloomFilterFieldsProducer

All Implemented Interfaces:

Closeable, AutoCloseable, Iterable<String>

public class DelegatingBloomFilterFieldsProducer
extends org.apache.lucene.codecs.FieldsProducer

A FieldsProducer that uses a Bloom filter for fast term existence checks before delegating exact lookups to the underlying FieldsProducer. This avoids a potentially expensive seek operations for non-existent terms.

Field Summary

Fields inherited from class org.apache.lucene.index.Fields

EMPTY_ARRAY

Constructor Summary

Constructors

Constructor	Description
DelegatingBloomFilterFieldsProducer(org.apache.lucene.codecs.FieldsProducer delegate, BloomFilter bloomFilter)

Method Summary

Modifier and Type	Method	Description
void	checkIntegrity()
void	close()
Iterator<String>	iterator()
int	size()
org.apache.lucene.index.Terms	terms(String field)

Methods inherited from class org.apache.lucene.codecs.FieldsProducer

getMergeInstance

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.lang.Iterable

forEach, spliterator

Constructor Details

DelegatingBloomFilterFieldsProducer

public DelegatingBloomFilterFieldsProducer(org.apache.lucene.codecs.FieldsProducer delegate,
 BloomFilter bloomFilter)

Method Details

close

public void close()
           throws IOException

Specified by:

close in interface AutoCloseable

Specified by:

close in interface Closeable

Specified by:

close in class org.apache.lucene.codecs.FieldsProducer

Throws:

IOException

checkIntegrity

public void checkIntegrity()
                    throws IOException

Specified by:

checkIntegrity in class org.apache.lucene.codecs.FieldsProducer

Throws:

IOException

iterator

public Iterator<String> iterator()

Specified by:

iterator in interface Iterable<String>

Specified by:

iterator in class org.apache.lucene.index.Fields

terms

public org.apache.lucene.index.Terms terms(String field)
                                    throws IOException

Specified by:

terms in class org.apache.lucene.index.Fields

Throws:

IOException

size

public int size()

Specified by:

size in class org.apache.lucene.index.Fields