# Package org.apache.lucene.backward_codecs.lucene912

package org.apache.lucene.backward_codecs.lucene912
Lucene 9.12 file format.

- Related Packages
  Package
  Description
  org.apache.lucene.backward_codecs
  Common APIs for use by backwards compatibility codecs.
- Class
  Description
  Lucene912Codec
  Implements the Lucene 9.12 index format
  Lucene912Codec.Mode
  Configuration option for the codec.
  Lucene912PostingsFormat
  Lucene 9.12 postings format, which encodes postings in packed integer blocks for fast decode.
  Lucene912PostingsFormat.IntBlockTermState
  Holds all state required for `Lucene912PostingsReader` to produce a `PostingsEnum` without re-seeking the terms dict.
  Lucene912PostingsReader
  Concrete class that reads docId(maybe frq,pos,offset,payloads) list with postings format.