MergingDirectoryReaderWrapper (Lucene 9.0.0 test-framework API)

java.lang.Object
- org.apache.lucene.index.IndexReader
- - org.apache.lucene.index.CompositeReader
  - - org.apache.lucene.index.BaseCompositeReader<LeafReader>
    - - org.apache.lucene.index.DirectoryReader
      - org.apache.lucene.index.FilterDirectoryReader
        
        org.apache.lucene.index.MergingDirectoryReaderWrapper

All Implemented Interfaces:

Closeable, AutoCloseable
```
public final class MergingDirectoryReaderWrapper
extends FilterDirectoryReader
```
DirectoryReader wrapper that uses the merge instances of the wrapped CodecReaders. NOTE: This class will fail to work if the leaves of the wrapped directory are not codec readers.

Nested Class Summary
- Nested classes/interfaces inherited from class org.apache.lucene.index.FilterDirectoryReader
  FilterDirectoryReader.SubReaderWrapper
- Nested classes/interfaces inherited from class org.apache.lucene.index.IndexReader
  IndexReader.CacheHelper, IndexReader.CacheKey, IndexReader.ClosedListener

Field Summary
- Fields inherited from class org.apache.lucene.index.FilterDirectoryReader
  in
- Fields inherited from class org.apache.lucene.index.DirectoryReader
  directory
- Fields inherited from class org.apache.lucene.index.BaseCompositeReader
  subReadersSorter

Constructor Summary

Constructors
Constructor Description

MergingDirectoryReaderWrapper(DirectoryReader in)
Wrap the given directory.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`protected DirectoryReader`	`doWrapDirectoryReader(DirectoryReader in)`
`IndexReader.CacheHelper`	`getReaderCacheHelper()`

Methods inherited from class org.apache.lucene.index.FilterDirectoryReader
doClose, doOpenIfChanged, doOpenIfChanged, doOpenIfChanged, getDelegate, getIndexCommit, getVersion, isCurrent, unwrap

Methods inherited from class org.apache.lucene.index.DirectoryReader
directory, indexExists, listCommits, open, open, open, open, open, open, openIfChanged, openIfChanged, openIfChanged, openIfChanged

Methods inherited from class org.apache.lucene.index.BaseCompositeReader
docFreq, document, getDocCount, getSequentialSubReaders, getSumDocFreq, getSumTotalTermFreq, getTermVectors, maxDoc, numDocs, readerBase, readerIndex, totalTermFreq

Methods inherited from class org.apache.lucene.index.CompositeReader
getContext, toString

Methods inherited from class org.apache.lucene.index.IndexReader
close, decRef, document, document, ensureOpen, equals, getRefCount, getTermVector, hasDeletions, hashCode, incRef, leaves, numDeletedDocs, registerParentReader, tryIncRef

Methods inherited from class java.lang.Object
clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

MergingDirectoryReaderWrapper

public MergingDirectoryReaderWrapper(DirectoryReader in)
                              throws IOException

Wrap the given directory.

Throws:: IOException

Method Detail

doWrapDirectoryReader

protected DirectoryReader doWrapDirectoryReader(DirectoryReader in)
                                         throws IOException

Specified by:: doWrapDirectoryReader in class FilterDirectoryReader
Throws:: IOException

getReaderCacheHelper
```
public IndexReader.CacheHelper getReaderCacheHelper()
```
Specified by:

getReaderCacheHelper in class IndexReader