Module org.elasticsearch.server

Package org.elasticsearch.index.codec.bloomfilter

Class ES87BloomFilterPostingsFormat

java.lang.Object

org.apache.lucene.codecs.PostingsFormat

org.elasticsearch.index.codec.bloomfilter.ES87BloomFilterPostingsFormat

All Implemented Interfaces:

org.apache.lucene.util.NamedSPILoader.NamedSPI

public class ES87BloomFilterPostingsFormat
extends org.apache.lucene.codecs.PostingsFormat

This implementation is forked from Lucene's BloomFilterPosting to support on-disk bloom filters.

A PostingsFormat useful for low doc-frequency fields such as primary keys. Bloom filters offers "fast-fail" for reads in segments known to have no record of the key.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static final class	ES87BloomFilterPostingsFormat.MurmurHash3	Implementation of the MurmurHash3 128-bit hash functions.

Field Summary

Fields inherited from class org.apache.lucene.codecs.PostingsFormat

EMPTY

Constructor Summary

Constructors

Constructor	Description
ES87BloomFilterPostingsFormat()
ES87BloomFilterPostingsFormat(BigArrays bigArrays, Function<String,org.apache.lucene.codecs.PostingsFormat> postingsFormats)

Method Summary

Modifier and Type	Method	Description
org.apache.lucene.codecs.FieldsConsumer	fieldsConsumer(org.apache.lucene.index.SegmentWriteState state)
org.apache.lucene.codecs.FieldsProducer	fieldsProducer(org.apache.lucene.index.SegmentReadState state)
String	toString()

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

availablePostingsFormats, forName, getName, reloadPostingsFormats

Methods inherited from class java.lang.Object

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

Constructor Details

ES87BloomFilterPostingsFormat

public ES87BloomFilterPostingsFormat(BigArrays bigArrays,
 Function<String,org.apache.lucene.codecs.PostingsFormat> postingsFormats)

ES87BloomFilterPostingsFormat

public ES87BloomFilterPostingsFormat()

Method Details

fieldsConsumer

public org.apache.lucene.codecs.FieldsConsumer fieldsConsumer(org.apache.lucene.index.SegmentWriteState state)
                                                       throws IOException

Specified by:

fieldsConsumer in class org.apache.lucene.codecs.PostingsFormat

Throws:

IOException

fieldsProducer

public org.apache.lucene.codecs.FieldsProducer fieldsProducer(org.apache.lucene.index.SegmentReadState state)
                                                       throws IOException

Specified by:

fieldsProducer in class org.apache.lucene.codecs.PostingsFormat

Throws:

IOException

toString

public String toString()

Overrides:

toString in class org.apache.lucene.codecs.PostingsFormat