Namespace Lucene.Net.Codecs.Compressing

StoredFieldsFormat that allows cross-document and cross-field compression of stored fields.

Classes

CompressingStoredFieldsFormat

A StoredFieldsFormat that is very similar to Lucene40StoredFieldsFormat but compresses documents in chunks in order to improve the compression ratio.

For a chunk size of chunkSize bytes, this StoredFieldsFormat does not support documents larger than (231 - chunkSize) bytes. In case this is a problem, you should use another format, such as Lucene40StoredFieldsFormat.

For optimal performance, you should use a MergePolicy that returns segments that have the biggest byte size first.

This is a Lucene.NET EXPERIMENTAL API, use at your own risk

CompressingStoredFieldsIndexReader

Random-access reader for CompressingStoredFieldsIndexWriter.

This is a Lucene.NET INTERNAL API, use at your own risk

CompressingStoredFieldsIndexWriter

Efficient index format for block-based Codecs.

this writer generates a file which can be loaded into memory using memory-efficient data structures to quickly locate the block that contains any document.

In order to have a compact in-memory representation, for every block of 1024 chunks, this index computes the average number of bytes per chunk and for every chunk, only stores the difference between

    Data is written as follows:

      Notes

        This is a Lucene.NET INTERNAL API, use at your own risk

        CompressingStoredFieldsReader

        StoredFieldsReader impl for CompressingStoredFieldsFormat.

        This is a Lucene.NET EXPERIMENTAL API, use at your own risk

        CompressingStoredFieldsWriter

        StoredFieldsWriter impl for CompressingStoredFieldsFormat.

        This is a Lucene.NET EXPERIMENTAL API, use at your own risk

        CompressingTermVectorsFormat

        A TermVectorsFormat that compresses chunks of documents together in order to improve the compression ratio.

        This is a Lucene.NET EXPERIMENTAL API, use at your own risk

        CompressingTermVectorsReader

        TermVectorsReader for CompressingTermVectorsFormat.

        This is a Lucene.NET EXPERIMENTAL API, use at your own risk

        CompressingTermVectorsWriter

        TermVectorsWriter for CompressingTermVectorsFormat.

        This is a Lucene.NET EXPERIMENTAL API, use at your own risk

        CompressionMode

        A compression mode. Tells how much effort should be spent on compression and decompression of stored fields.

        This is a Lucene.NET EXPERIMENTAL API, use at your own risk

        Compressor

        A data compressor.

        Decompressor

        A decompressor.

        LZ4

        LZ4 compression and decompression routines.

        http://code.google.com/p/lz4/ http://fastcompression.blogspot.fr/p/lz4.html

        LZ4.HashTable

        LZ4.HCHashTable

        LZ4.Match