org.apache.lucene.analysis.ja.dict

## Class TokenInfoFST

- java.lang.Object
- - org.apache.lucene.analysis.ja.dict.TokenInfoFST

-     public final class TokenInfoFST
      extends Object

  Thin wrapper around an FST with root-arc caching for Japanese.

  Depending upon fasterButMoreRam, either just kana (191 arcs), or kana and han (28,607 arcs) are cached. The latter offers additional performance at the cost of more RAM.

- - ### Field Summary

    Fields
    Modifier and Type | Field and Description
    --- | ---
    `Long` | `NO_OUTPUT`

  - ### Constructor Summary

    Constructors
    Constructor and Description
    `TokenInfoFST(FST<Long> fst, boolean fasterButMoreRam)`

  - ### Method Summary

    All Methods Instance Methods Concrete Methods
    Modifier and Type | Method and Description
    --- | ---
    `FST.Arc<Long>` | `findTargetArc(int ch, FST.Arc<Long> follow, FST.Arc<Long> arc, boolean useCache, FST.BytesReader fstReader)`
    `FST.BytesReader` | `getBytesReader()`
    `FST.Arc<Long>` | `getFirstArc(FST.Arc<Long> arc)`

    - ### Methods inherited from class java.lang.Object

      `clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

- - ### Field Detail

    - #### NO_OUTPUT

          public final Long NO_OUTPUT

  - ### Constructor Detail

    - #### TokenInfoFST

          public TokenInfoFST(FST<Long> fst,
                              boolean fasterButMoreRam)
                       throws IOException

      Throws:
        `IOException`

  - ### Method Detail

    - #### findTargetArc

          public FST.Arc<Long> findTargetArc(int ch,
                                             FST.Arc<Long> follow,
                                             FST.Arc<Long> arc,
                                             boolean useCache,
                                             FST.BytesReader fstReader)
                                      throws IOException

      Throws:
        `IOException`

    - #### getFirstArc

          public FST.Arc<Long> getFirstArc(FST.Arc<Long> arc)

    - #### getBytesReader

          public FST.BytesReader getBytesReader()

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