# Uses of Class
org.apache.lucene.codecs.blockterms.TermsIndexWriterBase

Packages that use TermsIndexWriterBase
Package
Description
org.apache.lucene.codecs.blockterms
Pluggable term index / block terms dictionary implementations.

## Uses of TermsIndexWriterBase in org.apache.lucene.codecs.blockterms

Subclasses of TermsIndexWriterBase in org.apache.lucene.codecs.blockterms
Modifier and Type
Class
Description
`class`
`FixedGapTermsIndexWriter`
Selects every Nth term as and index term, and hold term bytes (mostly) fully expanded in memory.
`class`
`VariableGapTermsIndexWriter`
Selects index terms according to provided pluggable `VariableGapTermsIndexWriter.IndexTermSelector`, and stores them in a prefix trie that's loaded entirely in RAM stored as an FST.
Constructors in org.apache.lucene.codecs.blockterms with parameters of type TermsIndexWriterBase
Modifier
Constructor
Description
``
`BlockTermsWriter(TermsIndexWriterBase termsIndexWriter, SegmentWriteState state, PostingsWriterBase postingsWriter)`