org.apache.lucene.index

Class RandomCodec

java.lang.Object

org.apache.lucene.codecs.Codec

org.apache.lucene.codecs.lucene410.Lucene410Codec

org.apache.lucene.index.RandomCodec

All Implemented Interfaces:

NamedSPILoader.NamedSPI

public class RandomCodec
extends Lucene410Codec

Codec that assigns per-field random postings formats.

The same field/format assignment will happen regardless of order, a hash is computed up front that determines the mapping. This means fields can be put into things like HashSets and added to documents in different orders and the test will still be deterministic and reproducable.

Field Summary

Fields

Modifier and Type	Field and Description
Set<String>	avoidCodecs
Set<String>	dvFormatNames unique set of docvalues format names this codec knows about
Set<String>	formatNames unique set of format names this codec knows about

Constructor Summary

Constructors

Constructor and Description
RandomCodec(Random random)
RandomCodec(Random random, Set<String> avoidCodecs)

Method Summary

Modifier and Type	Method and Description
DocValuesFormat	getDocValuesFormatForField(String name) Returns the docvalues format that should be used for writing new segments of field.
PostingsFormat	getPostingsFormatForField(String name) Returns the postings format that should be used for writing new segments of field.
String	toString() returns the codec's name.

Methods inherited from class org.apache.lucene.codecs.lucene410.Lucene410Codec

docValuesFormat, fieldInfosFormat, liveDocsFormat, normsFormat, postingsFormat, segmentInfoFormat, storedFieldsFormat, termVectorsFormat

Methods inherited from class org.apache.lucene.codecs.Codec

availableCodecs, forName, getDefault, getName, reloadCodecs, setDefault

Methods inherited from class java.lang.Object

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

Field Detail

formatNames

public Set<String> formatNames

unique set of format names this codec knows about

dvFormatNames

public Set<String> dvFormatNames

unique set of docvalues format names this codec knows about

avoidCodecs

public final Set<String> avoidCodecs

Constructor Detail

RandomCodec

public RandomCodec(Random random,
                   Set<String> avoidCodecs)

RandomCodec

public RandomCodec(Random random)

Method Detail

getPostingsFormatForField

public PostingsFormat getPostingsFormatForField(String name)

Description copied from class: Lucene410Codec

Returns the postings format that should be used for writing new segments of field. The default implementation always returns "Lucene41"

Overrides:

getPostingsFormatForField in class Lucene410Codec

getDocValuesFormatForField

public DocValuesFormat getDocValuesFormatForField(String name)

Description copied from class: Lucene410Codec

Returns the docvalues format that should be used for writing new segments of field. The default implementation always returns "Lucene410"

Overrides:

getDocValuesFormatForField in class Lucene410Codec

toString

public String toString()

Description copied from class: Codec

returns the codec's name. Subclasses can override to provide more detail (such as parameters).

Overrides:

toString in class Codec