org.apache.lucene.search.join

## Class CheckJoinIndex

- java.lang.Object
- - org.apache.lucene.search.join.CheckJoinIndex

-     public class CheckJoinIndex
      extends Object

  Utility class to check a block join index.

- - ### Method Summary

    All Methods Static Methods Concrete Methods
    Modifier and Type | Method and Description
    --- | ---
    `static void` | `check(IndexReader reader, BitSetProducer parentsFilter)` Check that the given index is good to use for block joins.

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

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

- - ### Method Detail

    - #### check

          public static void check(IndexReader reader,
                                   BitSetProducer parentsFilter)
                            throws IOException

      Check that the given index is good to use for block joins.
      Throws:
        `IllegalStateException` - if the index does not have an appropriate structure
        `IOException`

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