# Lucene 4.2.0 codecs API

Collection of useful codec, postings format and terms dictionary implementations.

See: Description

Packages
Package | Description
--- | ---
org.apache.lucene.codecs.appending | Codec for on append-only outputs, such as plain output streams and append-only filesystems.
org.apache.lucene.codecs.blockterms | Pluggable term index / block terms dictionary implementations.
org.apache.lucene.codecs.bloom | Codec PostingsFormat for fast access to low-frequency terms such as primary key fields.
org.apache.lucene.codecs.diskdv | DocValuesFormat that accesses values directly from disk.
org.apache.lucene.codecs.intblock | Intblock: base support for fixed or variable length block integer encoders
org.apache.lucene.codecs.memory | Postings format that is read entirely into memory.
org.apache.lucene.codecs.pulsing | Pulsing Codec: inlines low frequency terms' postings into terms dictionary.
org.apache.lucene.codecs.sep | Sep: base support for separate files (doc,frq,pos,skp,pyl)
org.apache.lucene.codecs.simpletext | Simpletext Codec: writes human readable postings.

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