Module org.apache.lucene.core

Package org.apache.lucene.codecs.lucene90

Class Lucene90NormsProducer

java.lang.Object

org.apache.lucene.codecs.NormsProducer

org.apache.lucene.codecs.lucene90.Lucene90NormsProducer

All Implemented Interfaces:

Closeable, AutoCloseable, Cloneable

final class Lucene90NormsProducer
extends NormsProducer
implements Cloneable

Reader for Lucene90NormsFormat

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
(package private) static class	Lucene90NormsProducer.DenseNormsIterator
(package private) static class	Lucene90NormsProducer.NormsEntry
(package private) static class	Lucene90NormsProducer.SparseNormsIterator

Field Summary

Fields

Modifier and Type	Field	Description
private IndexInput	data
private IntObjectHashMap<RandomAccessInput>	dataInputs
private IntObjectHashMap<IndexInput>	disiInputs
private IntObjectHashMap<RandomAccessInput>	disiJumpTables
private final int	maxDoc
private boolean	merging
private final IntObjectHashMap<Lucene90NormsProducer.NormsEntry>	norms

Constructor Summary

Constructors

Constructor	Description
Lucene90NormsProducer(SegmentReadState state, String dataCodec, String dataExtension, String metaCodec, String metaExtension)

Method Summary

Modifier and Type	Method	Description
void	checkIntegrity()	Checks consistency of this producer
void	close()
private RandomAccessInput	getDataInput(FieldInfo field, Lucene90NormsProducer.NormsEntry entry)
private IndexInput	getDisiInput(FieldInfo field, Lucene90NormsProducer.NormsEntry entry)
private RandomAccessInput	getDisiJumpTable(FieldInfo field, Lucene90NormsProducer.NormsEntry entry)
NormsProducer	getMergeInstance()	Returns an instance optimized for merging.
NumericDocValues	getNorms(FieldInfo field)	Returns NumericDocValues for this field.
private void	readFields(IndexInput meta, FieldInfos infos)
String	toString()

Methods inherited from class java.lang.Object

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

Field Details

norms

private final IntObjectHashMap<Lucene90NormsProducer.NormsEntry> norms

maxDoc

private final int maxDoc

data

private IndexInput data

merging

private boolean merging

disiInputs

private IntObjectHashMap<IndexInput> disiInputs

disiJumpTables

private IntObjectHashMap<RandomAccessInput> disiJumpTables

dataInputs

private IntObjectHashMap<RandomAccessInput> dataInputs

Constructor Details

Lucene90NormsProducer

Lucene90NormsProducer(SegmentReadState state,
 String dataCodec,
 String dataExtension,
 String metaCodec,
 String metaExtension)
               throws IOException

Throws:

IOException

Method Details

getMergeInstance

public NormsProducer getMergeInstance()

Description copied from class: NormsProducer

Returns an instance optimized for merging. This instance may only be used from the thread that acquires it.

The default implementation returns this

Overrides:

getMergeInstance in class NormsProducer

readFields

private void readFields(IndexInput meta,
 FieldInfos infos)
                 throws IOException

Throws:

IOException

getDataInput

private RandomAccessInput getDataInput(FieldInfo field,
 Lucene90NormsProducer.NormsEntry entry)
                                throws IOException

Throws:

IOException

getDisiInput

private IndexInput getDisiInput(FieldInfo field,
 Lucene90NormsProducer.NormsEntry entry)
                         throws IOException

Throws:

IOException

getDisiJumpTable

private RandomAccessInput getDisiJumpTable(FieldInfo field,
 Lucene90NormsProducer.NormsEntry entry)
                                    throws IOException

Throws:

IOException

getNorms

public NumericDocValues getNorms(FieldInfo field)
                          throws IOException

Description copied from class: NormsProducer

Returns NumericDocValues for this field. The returned instance need not be thread-safe: it will only be used by a single thread. The behavior is undefined if the given field doesn't have norms enabled on its FieldInfo. The return value is never null.

Specified by:

getNorms in class NormsProducer

Throws:

IOException

close

public void close()
           throws IOException

Specified by:

close in interface AutoCloseable

Specified by:

close in interface Closeable

Throws:

IOException

checkIntegrity

public void checkIntegrity()
                    throws IOException

Description copied from class: NormsProducer

Checks consistency of this producer

Note that this may be costly in terms of I/O, e.g. may involve computing a checksum value against large data files.

Specified by:

checkIntegrity in class NormsProducer

Throws:

IOException

toString

public String toString()

Overrides:

toString in class Object