Module org.elasticsearch.server

Package org.elasticsearch.index.codec.storedfields

Class TSDBStoredFieldsFormat

java.lang.Object

org.apache.lucene.codecs.StoredFieldsFormat

org.elasticsearch.index.codec.storedfields.TSDBStoredFieldsFormat

public class TSDBStoredFieldsFormat
extends org.apache.lucene.codecs.StoredFieldsFormat

Composite stored fields format for TIME_SERIES indices that combines bloom filter optimization for document ID lookups with standard field storage.

This format uses a two-layer approach:

• ES93BloomFilterStoredFieldsFormat - Creates a bloom filter index on the _id field to enable fast document existence checks and skips storing the _id
• Delegate StoredFieldsFormat - Handles storage and retrieval of all other fields using the standard format

See Also:

• ES93BloomFilterStoredFieldsFormat
• StoredFieldsFormat

Constructor Summary

Constructors

Constructor	Description
TSDBStoredFieldsFormat(org.apache.lucene.codecs.StoredFieldsFormat delegate, ES93BloomFilterStoredFieldsFormat bloomFilterStoredFieldsFormat)

Method Summary

Modifier and Type	Method	Description
org.apache.lucene.codecs.StoredFieldsReader	fieldsReader(org.apache.lucene.store.Directory directory, org.apache.lucene.index.SegmentInfo si, org.apache.lucene.index.FieldInfos fn, org.apache.lucene.store.IOContext context)
org.apache.lucene.codecs.StoredFieldsWriter	fieldsWriter(org.apache.lucene.store.Directory directory, org.apache.lucene.index.SegmentInfo si, org.apache.lucene.store.IOContext context)
static BloomFilter	getBloomFilterForId(org.apache.lucene.index.SegmentReadState state)

Methods inherited from class java.lang.Object

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

Constructor Details

TSDBStoredFieldsFormat

public TSDBStoredFieldsFormat(org.apache.lucene.codecs.StoredFieldsFormat delegate,
 ES93BloomFilterStoredFieldsFormat bloomFilterStoredFieldsFormat)

Method Details

fieldsReader

public org.apache.lucene.codecs.StoredFieldsReader fieldsReader(org.apache.lucene.store.Directory directory,
 org.apache.lucene.index.SegmentInfo si,
 org.apache.lucene.index.FieldInfos fn,
 org.apache.lucene.store.IOContext context)
                                                         throws IOException

Specified by:

fieldsReader in class org.apache.lucene.codecs.StoredFieldsFormat

Throws:

IOException

fieldsWriter

public org.apache.lucene.codecs.StoredFieldsWriter fieldsWriter(org.apache.lucene.store.Directory directory,
 org.apache.lucene.index.SegmentInfo si,
 org.apache.lucene.store.IOContext context)
                                                         throws IOException

Specified by:

fieldsWriter in class org.apache.lucene.codecs.StoredFieldsFormat

Throws:

IOException

getBloomFilterForId

public static BloomFilter getBloomFilterForId(org.apache.lucene.index.SegmentReadState state)
                                       throws IOException

Throws:

IOException