Package org.apache.lucene.index

## Class ExitableDirectoryReader.ExitableTermsEnum

- java.lang.Object
- - org.apache.lucene.index.TermsEnum
  - - org.apache.lucene.index.FilterLeafReader.FilterTermsEnum
    - - org.apache.lucene.index.ExitableDirectoryReader.ExitableTermsEnum

- All Implemented Interfaces:
    `BytesRefIterator`
  Enclosing class:
    ExitableDirectoryReader

      public static class ExitableDirectoryReader.ExitableTermsEnum
      extends FilterLeafReader.FilterTermsEnum

  Wrapper class for TermsEnum that is used by ExitableTerms for implementing an exitable enumeration of terms.

- - ### Nested Class Summary

    - ### Nested classes/interfaces inherited from class org.apache.lucene.index.TermsEnum

      `TermsEnum.SeekStatus`

  - ### Field Summary

    - ### Fields inherited from class org.apache.lucene.index.FilterLeafReader.FilterTermsEnum

      `in`

    - ### Fields inherited from class org.apache.lucene.index.TermsEnum

      `EMPTY`

  - ### Constructor Summary

    Constructors
    Constructor | Description
    --- | ---
    `ExitableTermsEnum​(TermsEnum termsEnum, QueryTimeout queryTimeout)` | Constructor *

  - ### Method Summary

    All Methods Instance Methods Concrete Methods
    Modifier and Type | Method | Description
    --- | --- | ---
    `BytesRef` | `next()` | Increments the iteration to the next `BytesRef` in the iterator.

    - ### Methods inherited from class org.apache.lucene.index.FilterLeafReader.FilterTermsEnum

      `attributes, docFreq, impacts, ord, postings, seekCeil, seekExact, seekExact, seekExact, term, termState, totalTermFreq`

    - ### Methods inherited from class org.apache.lucene.index.TermsEnum

      `postings`

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

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

- - ### Constructor Detail

    - #### ExitableTermsEnum

          public ExitableTermsEnum​(TermsEnum termsEnum,
                                   QueryTimeout queryTimeout)

      Constructor *

  - ### Method Detail

    - #### next

          public BytesRef next()
                        throws IOException

      Description copied from interface: `BytesRefIterator`
      Increments the iteration to the next `BytesRef` in the iterator. Returns the resulting `BytesRef` or `null` if the end of the iterator is reached. The returned BytesRef may be re-used across calls to next. After this method returns null, do not call it again: the results are undefined.
      Specified by:
        `next` in interface `BytesRefIterator`
      Overrides:
        `next` in class `FilterLeafReader.FilterTermsEnum`
      Returns:
        the next `BytesRef` in the iterator or `null` if the end of the iterator is reached.
      Throws:
        `IOException` - If there is a low-level I/O error.