# Package org.apache.lucene.codecs.lucene84

Components from the Lucene 8.4 index format.

See: Description

Class Summary
ForDeltaUtil: Utility class to encode/decode increasing sequences of 128 integers.
Lucene84PostingsFormat: Lucene 5.0 postings format, which encodes postings in packed integer blocks for fast decode.
Lucene84PostingsFormat.IntBlockTermState: Holds all state required for `Lucene84PostingsReader` to produce a `PostingsEnum` without re-seeking the terms dict.
Lucene84PostingsReader: Concrete class that reads docId(maybe frq,pos,offset,payloads) list with postings format.
Lucene84PostingsWriter: Concrete class that writes docId(maybe frq,pos,offset,payloads) list with postings format.

## Package org.apache.lucene.codecs.lucene84 Description

Components from the Lucene 8.4 index format. See `org.apache.lucene.codecs.lucene86` for an overview of the current index format.