Package org.apache.lucene.index

Class DocValuesFieldUpdates

java.lang.Object

org.apache.lucene.index.DocValuesFieldUpdates

All Implemented Interfaces:

Accountable

Direct Known Subclasses:

BinaryDocValuesFieldUpdates, DocValuesFieldUpdates.SingleValueDocValuesFieldUpdates, NumericDocValuesFieldUpdates

abstract class DocValuesFieldUpdates
extends java.lang.Object
implements Accountable

Holds updates of a single DocValues field, for a set of documents within one segment.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
protected static class	DocValuesFieldUpdates.AbstractIterator
(package private) static class	DocValuesFieldUpdates.Iterator	An iterator over documents and their updated values.
(package private) static class	DocValuesFieldUpdates.SingleValueDocValuesFieldUpdates

Field Summary

Fields

Modifier and Type	Field	Description
private int	bitsPerValue
(package private) long	delGen
protected PagedMutable	docs
(package private) java.lang.String	field
private boolean	finished
private static long	HAS_NO_VALUE_MASK
private static long	HAS_VALUE_MASK
protected int	maxDoc
protected static int	PAGE_SIZE
private static int	SHIFT
protected int	size
(package private) DocValuesType	type

Fields inherited from interface org.apache.lucene.util.Accountable

NULL_ACCOUNTABLE

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	DocValuesFieldUpdates(int maxDoc, long delGen, java.lang.String field, DocValuesType type)

Method Summary

Modifier and Type	Method	Description
(package private) int	add(int doc)
(package private) abstract void	add(int doc, long value)
(package private) abstract void	add(int docId, DocValuesFieldUpdates.Iterator iterator)	Adds the value for the given docID.
(package private) abstract void	add(int doc, BytesRef value)
private int	addInternal(int doc, long hasValueMask)
(package private) boolean	any()	Returns true if this instance contains any updates.
protected void	ensureFinished()
(package private) void	finish()	Freezes internal data structures and sorts updates by docID for efficient iteration.
(package private) boolean	getFinished()
protected void	grow(int size)
(package private) abstract DocValuesFieldUpdates.Iterator	iterator()	Returns an DocValuesFieldUpdates.Iterator over the updated documents and their values.
static DocValuesFieldUpdates.Iterator	mergedIterator(DocValuesFieldUpdates.Iterator[] subs)	Merge-sorts multiple iterators, one per delGen, favoring the largest delGen that has updates for a given docID.
long	ramBytesUsed()	Return the memory usage of this object in bytes.
(package private) void	reset(int doc)	Adds an update that resets the documents value.
protected void	resize(int size)
(package private) int	size()
protected void	swap(int i, int j)

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.lucene.util.Accountable

getChildResources

Field Detail

PAGE_SIZE

protected static final int PAGE_SIZE

See Also:

Constant Field Values

HAS_VALUE_MASK

private static final long HAS_VALUE_MASK

See Also:

Constant Field Values

HAS_NO_VALUE_MASK

private static final long HAS_NO_VALUE_MASK

See Also:

Constant Field Values

SHIFT

private static final int SHIFT

See Also:

Constant Field Values

field

final java.lang.String field

type

final DocValuesType type

delGen

final long delGen

bitsPerValue

private final int bitsPerValue

finished

private boolean finished

maxDoc

protected final int maxDoc

docs

protected PagedMutable docs

size

protected int size

Constructor Detail

DocValuesFieldUpdates

protected DocValuesFieldUpdates(int maxDoc,
                                long delGen,
                                java.lang.String field,
                                DocValuesType type)

Method Detail

mergedIterator

public static DocValuesFieldUpdates.Iterator mergedIterator(DocValuesFieldUpdates.Iterator[] subs)

Merge-sorts multiple iterators, one per delGen, favoring the largest delGen that has updates for a given docID.

getFinished

final boolean getFinished()

add

abstract void add(int doc,
                  long value)

add

abstract void add(int doc,
                  BytesRef value)

add

abstract void add(int docId,
                  DocValuesFieldUpdates.Iterator iterator)

Adds the value for the given docID. This method prevents conditional calls to DocValuesFieldUpdates.Iterator.longValue() or DocValuesFieldUpdates.Iterator.binaryValue() since the implementation knows if it's a long value iterator or binary value

iterator

abstract DocValuesFieldUpdates.Iterator iterator()

Returns an DocValuesFieldUpdates.Iterator over the updated documents and their values.

finish

final void finish()

Freezes internal data structures and sorts updates by docID for efficient iteration.

any

boolean any()

Returns true if this instance contains any updates.

size

final int size()

reset

void reset(int doc)

Adds an update that resets the documents value.

Parameters:

doc - the doc to update

add

final int add(int doc)

addInternal

private int addInternal(int doc,
                        long hasValueMask)

swap

protected void swap(int i,
                    int j)

grow

protected void grow(int size)

resize

protected void resize(int size)

ensureFinished

protected final void ensureFinished()

ramBytesUsed

public long ramBytesUsed()

Description copied from interface: Accountable

Return the memory usage of this object in bytes. Negative values are illegal.

Specified by:

ramBytesUsed in interface Accountable