Package org.apache.lucene.index

Class DocIDMerger.Sub

java.lang.Object

org.apache.lucene.index.DocIDMerger.Sub

Enclosing class:

DocIDMerger<T extends DocIDMerger.Sub>

public abstract static class DocIDMerger.Sub
extends Object

Represents one sub-reader being merged

Field Summary

Fields

Modifier and Type	Field	Description
final MergeState.DocMap	docMap	Map from old to new doc IDs
int	mappedDocID	Mapped doc ID

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	Sub(MergeState.DocMap docMap)	Sole constructor

Method Summary

Modifier and Type	Method	Description
abstract int	nextDoc()	Returns the next document ID from this sub reader, and DocIdSetIterator.NO_MORE_DOCS when done
final int	nextMappedDoc()	Like nextDoc() but skips over unmapped docs and returns the next mapped doc ID, or DocIdSetIterator.NO_MORE_DOCS when exhausted.

Methods inherited from class java.lang.Object

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

Field Details

mappedDocID

public int mappedDocID

Mapped doc ID

docMap

public final MergeState.DocMap docMap

Map from old to new doc IDs

Constructor Details

Sub

protected Sub(MergeState.DocMap docMap)

Sole constructor

Method Details

nextDoc

public abstract int nextDoc()
                     throws IOException

Returns the next document ID from this sub reader, and DocIdSetIterator.NO_MORE_DOCS when done

Throws:

IOException

nextMappedDoc

public final int nextMappedDoc()
                        throws IOException

Like nextDoc() but skips over unmapped docs and returns the next mapped doc ID, or DocIdSetIterator.NO_MORE_DOCS when exhausted. This method sets mappedDocID as a side effect.

Throws:

IOException