Package org.apache.lucene.codecs.lucene40

Class Lucene40NormsFormat

java.lang.Object

org.apache.lucene.codecs.NormsFormat

org.apache.lucene.codecs.lucene40.Lucene40NormsFormat

@Deprecated
public class Lucene40NormsFormat
extends NormsFormat

Deprecated.

Only for reading old 4.0 and 4.1 segments

Lucene 4.0 Norms Format.

Files:

• .nrm.cfs: compound container
• .nrm.cfe: compound entries

Norms are implemented as DocValues, so other than file extension, norms are written exactly the same way as DocValues.

See Also:

• Lucene40DocValuesFormat

Constructor Summary

Constructors

Constructor	Description
Lucene40NormsFormat()	Deprecated. Sole constructor.

Method Summary

Modifier and Type	Method	Description
DocValuesConsumer	normsConsumer(SegmentWriteState state)	Deprecated. Returns a DocValuesConsumer to write norms to the index.
DocValuesProducer	normsProducer(SegmentReadState state)	Deprecated. Returns a DocValuesProducer to read norms from the index.

Methods inherited from class java.lang.Object

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

Constructor Details

Lucene40NormsFormat

public Lucene40NormsFormat()

Deprecated.

Sole constructor.

Method Details

normsConsumer

public DocValuesConsumer normsConsumer(SegmentWriteState state)
                                throws IOException

Deprecated.

Description copied from class: NormsFormat

Returns a DocValuesConsumer to write norms to the index.

Specified by:

normsConsumer in class NormsFormat

Throws:

IOException

normsProducer

public DocValuesProducer normsProducer(SegmentReadState state)
                                throws IOException

Deprecated.

Description copied from class: NormsFormat

Returns a DocValuesProducer to read norms from the index.

NOTE: by the time this call returns, it must hold open any files it will need to use; else, those files may be deleted. Additionally, required files may be deleted during the execution of this call before there is a chance to open them. Under these circumstances an IOException should be thrown by the implementation. IOExceptions are expected and will automatically cause a retry of the segment opening logic with the newly revised segments.

Specified by:

normsProducer in class NormsFormat

Throws:

IOException