# Package org.apache.lucene.codecs.lucene90.compressing

package org.apache.lucene.codecs.lucene90.compressing
Lucene 9.0 compressing format.

- Related Packages
  Package
  Description
  org.apache.lucene.codecs.lucene90
  Lucene 9.0 file format.
- Classes
  Class
  Description
  FieldsIndexWriter
  Efficient index format for block-based `Codec`s.
  Lucene90CompressingStoredFieldsFormat
  A `StoredFieldsFormat` that compresses documents in chunks in order to improve the compression ratio.
  Lucene90CompressingStoredFieldsReader
  `StoredFieldsReader` impl for `Lucene90CompressingStoredFieldsFormat`.
  Lucene90CompressingStoredFieldsWriter
  `StoredFieldsWriter` impl for `Lucene90CompressingStoredFieldsFormat`.
  Lucene90CompressingTermVectorsFormat
  A `TermVectorsFormat` that compresses chunks of documents together in order to improve the compression ratio.
  Lucene90CompressingTermVectorsReader
  `TermVectorsReader` for `Lucene90CompressingTermVectorsFormat`.
  Lucene90CompressingTermVectorsWriter
  `TermVectorsWriter` for `Lucene90CompressingTermVectorsFormat`.