## 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
`Long` `NO_OUTPUT`

Constructor Summary
`TokenInfoFST(FST<Long> fst, boolean fasterButMoreRam)`

Method Summary
`FST.Arc<Long>` `findTargetArc(int ch, FST.Arc<Long> follow, FST.Arc<Long> arc, boolean useCache, FST.BytesReader fstReader)`
`FST.BytesReader` `getBytesReader(int pos)`
`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(int pos)