org.apache.lucene.codecs.blockterms

## Class TermsIndexReaderBase.FieldIndexEnum

- java.lang.Object
- - org.apache.lucene.codecs.blockterms.TermsIndexReaderBase.FieldIndexEnum

- Enclosing class:
    TermsIndexReaderBase

      public abstract static class TermsIndexReaderBase.FieldIndexEnum
      extends Object

  Similar to TermsEnum, except, the only "metadata" it reports for a given indexed term is the long fileOffset into the main terms dictionary file.

- - ### Constructor Summary

    Constructors
    Constructor and Description
    `TermsIndexReaderBase.FieldIndexEnum()`

  - ### Method Summary

    Methods
    Modifier and Type | Method and Description
    --- | ---
    `abstract long` | `next()` Returns -1 at end
    `abstract long` | `ord()` Only implemented if `TermsIndexReaderBase.supportsOrd()` returns true.
    `abstract long` | `seek(BytesRef term)` Seeks to "largest" indexed term that's <= term; returns file pointer index (into the main terms index file) for that term
    `abstract long` | `seek(long ord)` Only implemented if `TermsIndexReaderBase.supportsOrd()` returns true.
    `abstract BytesRef` | `term()`

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

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

- - ### Constructor Detail

    - #### TermsIndexReaderBase.FieldIndexEnum

          public TermsIndexReaderBase.FieldIndexEnum()

  - ### Method Detail

    - #### seek

          public abstract long seek(BytesRef term)
                             throws IOException

      Seeks to "largest" indexed term that's <= term; returns file pointer index (into the main terms index file) for that term
      Throws:
        `IOException`

    - #### next

          public abstract long next()
                             throws IOException

      Returns -1 at end
      Throws:
        `IOException`

    - #### term

          public abstract BytesRef term()

    - #### seek

          public abstract long seek(long ord)
                             throws IOException

      Only implemented if `TermsIndexReaderBase.supportsOrd()` returns true.
      Throws:
        `IOException`

    - #### ord

          public abstract long ord()

      Only implemented if `TermsIndexReaderBase.supportsOrd()` returns true.

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