Module org.apache.lucene.misc

Package org.apache.lucene.misc.index

Class MultiPassIndexSplitter.FakeDeleteIndexReader

java.lang.Object

org.apache.lucene.index.IndexReader

org.apache.lucene.index.CompositeReader

org.apache.lucene.index.BaseCompositeReader<MultiPassIndexSplitter.FakeDeleteLeafIndexReader>

org.apache.lucene.misc.index.MultiPassIndexSplitter.FakeDeleteIndexReader

All Implemented Interfaces:

Closeable, AutoCloseable

Enclosing class:

MultiPassIndexSplitter

private static final class MultiPassIndexSplitter.FakeDeleteIndexReader
extends BaseCompositeReader<MultiPassIndexSplitter.FakeDeleteLeafIndexReader>

This class emulates deletions on the underlying index.

Nested Class Summary

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.BaseCompositeReader

subReadersSorter

Constructor Summary

Constructors

Constructor	Description
FakeDeleteIndexReader(IndexReader reader)

Method Summary

Modifier and Type	Method	Description
void	deleteDocument(int docID)
protected void	doClose()	Implements close.
IndexReader.CacheHelper	getReaderCacheHelper()	Optional method: Return a IndexReader.CacheHelper that can be used to cache based on the content of this reader.
(package private) final List<? extends MultiPassIndexSplitter.FakeDeleteLeafIndexReader>	getSequentialSubReadersWrapper()
private static MultiPassIndexSplitter.FakeDeleteLeafIndexReader[]	initSubReaders(IndexReader reader)
void	undeleteAll()

Methods inherited from class org.apache.lucene.index.BaseCompositeReader

docFreq, document, getDocCount, getSequentialSubReaders, getSumDocFreq, getSumTotalTermFreq, getTermVectors, maxDoc, numDocs, readerBase, readerIndex, storedFields, termVectors, 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, notifyReaderClosedListeners, numDeletedDocs, registerParentReader, tryIncRef

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Details

FakeDeleteIndexReader

public FakeDeleteIndexReader(IndexReader reader)
                      throws IOException

Throws:

IOException

Method Details

initSubReaders

private static MultiPassIndexSplitter.FakeDeleteLeafIndexReader[] initSubReaders(IndexReader reader)
                                                                          throws IOException

Throws:

IOException

deleteDocument

public void deleteDocument(int docID)

undeleteAll

public void undeleteAll()

doClose

protected void doClose()

Description copied from class: IndexReader

Implements close.

Specified by:

doClose in class IndexReader

getReaderCacheHelper

public IndexReader.CacheHelper getReaderCacheHelper()

Description copied from class: IndexReader

Optional method: Return a IndexReader.CacheHelper that can be used to cache based on the content of this reader. Two readers that have different data or different sets of deleted documents will be considered different.

A return value of null indicates that this reader is not suited for caching, which is typically the case for short-lived wrappers that alter the content of the wrapped reader.

Specified by:

getReaderCacheHelper in class IndexReader

getSequentialSubReadersWrapper

final List<? extends MultiPassIndexSplitter.FakeDeleteLeafIndexReader> getSequentialSubReadersWrapper()