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## org.apache.lucene.index
Class SlowMultiReaderWrapper

    java.lang.Object
      org.apache.lucene.index.IndexReader
          org.apache.lucene.index.MultiReader
              org.apache.lucene.index.SlowMultiReaderWrapper

All Implemented Interfaces:
  Closeable, Cloneable

    public class SlowMultiReaderWrapper

extends MultiReader

Acts like Lucene 4.x's SlowMultiReaderWrapper for testing of top-level MultiTermEnum, MultiTermDocs, ...

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.lucene.index.IndexReader
`IndexReader.ReaderClosedListener`

Field Summary

Fields inherited from class org.apache.lucene.index.MultiReader
`starts, subReaders`

Fields inherited from class org.apache.lucene.index.IndexReader
`hasChanges`

Constructor Summary
`SlowMultiReaderWrapper(IndexReader reader)`

Method Summary
`FieldInfos` | `getFieldInfos()` Get the `FieldInfos` describing all fields in this reader.
`IndexReader[]` | `getSequentialSubReaders()` Expert: returns the sequential sub readers that this reader is logically composed of.
`String` | `toString()`

Methods inherited from class org.apache.lucene.index.MultiReader
`clone, clone, docFreq, doClose, doCommit, document, doDelete, doOpenIfChanged, doOpenIfChanged, doSetNorm, doUndeleteAll, getTermFreqVector, getTermFreqVector, getTermFreqVector, getTermFreqVectors, getVersion, hasDeletions, hasNorms, isCurrent, isDeleted, isOptimized, maxDoc, norms, norms, numDocs, readerIndex, termDocs, termDocs, termPositions, terms, terms`

Methods inherited from class org.apache.lucene.index.IndexReader
`acquireWriteLock, addReaderClosedListener, close, commit, commit, decRef, deleteDocument, deleteDocuments, directory, document, doOpenIfChanged, doOpenIfChanged, ensureOpen, flush, flush, getCommitUserData, getCommitUserData, getCoreCacheKey, getCurrentVersion, getDeletesCacheKey, getIndexCommit, getRefCount, getTermInfosIndexDivisor, getUniqueTermCount, incRef, indexExists, lastModified, listCommits, numDeletedDocs, open, open, open, open, open, open, open, open, open, open, open, openIfChanged, openIfChanged, openIfChanged, openIfChanged, removeReaderClosedListener, reopen, reopen, reopen, reopen, setNorm, setNorm, termPositions, tryIncRef, undeleteAll`

Methods inherited from class java.lang.Object
`equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait`

Constructor Detail

### SlowMultiReaderWrapper

    public SlowMultiReaderWrapper(IndexReader reader)

Method Detail

### getSequentialSubReaders

    public IndexReader[] getSequentialSubReaders()

  Description copied from class: `IndexReader`
  Expert: returns the sequential sub readers that this reader is logically composed of. For example, IndexSearcher uses this API to drive searching by one sub reader at a time. If this reader is not composed of sequential child readers, it should return null. If this method returns an empty array, that means this reader is a null reader (for example a MultiReader that has no sub readers).

  NOTE: You should not try using sub-readers returned by this method to make any changes (setNorm, deleteDocument, etc.). While this might succeed for one composite reader (like MultiReader), it will most likely lead to index corruption for other readers (like DirectoryReader obtained through `IndexReader.open(org.apache.lucene.store.Directory)`. Use the parent reader directly.

  Overrides:
    `getSequentialSubReaders` in class `MultiReader`

### toString

    public String toString()

  Description copied from class: `IndexReader`

  Overrides:
    `toString` in class `IndexReader`

### getFieldInfos

    public FieldInfos getFieldInfos()

  Description copied from class: `IndexReader`
  Get the `FieldInfos` describing all fields in this reader. NOTE: do not make any changes to the returned FieldInfos!

  Overrides:
    `getFieldInfos` in class `MultiReader`

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