## Uses of Interface
org.apache.lucene.util.NamedSPILoader.NamedSPI

- Packages that use NamedSPILoader.NamedSPI
  Package | Description
  --- | ---
  org.apache.lucene.codecs | Codecs API: API for customization of the encoding and structure of the index.
  org.apache.lucene.codecs.lucene3x | Codec to support Lucene 3.x indexes (readonly)
  org.apache.lucene.codecs.lucene40 | Lucene 4.0 file format.
  org.apache.lucene.codecs.lucene41 | Lucene 4.1 file format.
  org.apache.lucene.codecs.lucene42 | Lucene 4.2 file format.
  org.apache.lucene.codecs.perfield | Postings format that can delegate to different formats per-field.
  org.apache.lucene.util | Some utility classes.

- - ### Uses of NamedSPILoader.NamedSPI in org.apache.lucene.codecs

    Classes in org.apache.lucene.codecs that implement NamedSPILoader.NamedSPI
    Modifier and Type | Class and Description
    --- | ---
    `class` | `Codec` Encodes/decodes an inverted index segment.
    `class` | `DocValuesFormat` Encodes/decodes per-document values.
    `class` | `FilterCodec` A codec that forwards all its method calls to another codec.
    `class` | `PostingsFormat` Encodes/decodes terms, postings, and proximity data.

  - ### Uses of NamedSPILoader.NamedSPI in org.apache.lucene.codecs.lucene3x

    Classes in org.apache.lucene.codecs.lucene3x that implement NamedSPILoader.NamedSPI
    Modifier and Type | Class and Description
    --- | ---
    `class` | `Lucene3xCodec` Deprecated. Only for reading existing 3.x indexes

  - ### Uses of NamedSPILoader.NamedSPI in org.apache.lucene.codecs.lucene40

    Classes in org.apache.lucene.codecs.lucene40 that implement NamedSPILoader.NamedSPI
    Modifier and Type | Class and Description
    --- | ---
    `class` | `Lucene40Codec` Deprecated. Only for reading old 4.0 segments
    `class` | `Lucene40DocValuesFormat` Deprecated. Only for reading old 4.0 and 4.1 segments
    `class` | `Lucene40PostingsFormat` Deprecated. Only for reading old 4.0 segments

  - ### Uses of NamedSPILoader.NamedSPI in org.apache.lucene.codecs.lucene41

    Classes in org.apache.lucene.codecs.lucene41 that implement NamedSPILoader.NamedSPI
    Modifier and Type | Class and Description
    --- | ---
    `class` | `Lucene41Codec` Deprecated. Only for reading old 4.0 segments
    `class` | `Lucene41PostingsFormat` Lucene 4.1 postings format, which encodes postings in packed integer blocks for fast decode.

  - ### Uses of NamedSPILoader.NamedSPI in org.apache.lucene.codecs.lucene42

    Classes in org.apache.lucene.codecs.lucene42 that implement NamedSPILoader.NamedSPI
    Modifier and Type | Class and Description
    --- | ---
    `class` | `Lucene42Codec` Implements the Lucene 4.2 index format, with configurable per-field postings and docvalues formats.
    `class` | `Lucene42DocValuesFormat` Lucene 4.2 DocValues format.

  - ### Uses of NamedSPILoader.NamedSPI in org.apache.lucene.codecs.perfield

    Classes in org.apache.lucene.codecs.perfield that implement NamedSPILoader.NamedSPI
    Modifier and Type | Class and Description
    --- | ---
    `class` | `PerFieldDocValuesFormat` Enables per field docvalues support.
    `class` | `PerFieldPostingsFormat` Enables per field postings support.

  - ### Uses of NamedSPILoader.NamedSPI in org.apache.lucene.util

    Classes in org.apache.lucene.util with type parameters of type NamedSPILoader.NamedSPI
    Modifier and Type | Class and Description
    --- | ---
    `class` | `NamedSPILoader<S extends NamedSPILoader.NamedSPI>` Helper class for loading named SPIs from classpath (e.g.

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