org.apache.lucene.codecs
Class MissingOrdRemapper

java.lang.Object
  org.apache.lucene.codecs.MissingOrdRemapper

public class MissingOrdRemapper
extends Object

a utility class to write missing values for SORTED as if they were the empty string (to simulate pre-Lucene4.5 dv behavior for testing old codecs)

Constructor Summary

MissingOrdRemapper()

Method Summary

static Iterable<BytesRef>	insertEmptyValue(Iterable<BytesRef> iterable) insert an empty byte[] to the front of this iterable
static Iterable<Number>	mapAllOrds(Iterable<Number> iterable) remaps every ord+1 on this iterable
static Iterable<Number>	mapMissingToOrd0(Iterable<Number> iterable) remaps ord -1 to ord 0 on this iterable.

Methods inherited from class java.lang.Object

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

Constructor Detail

MissingOrdRemapper

public MissingOrdRemapper()

Method Detail

insertEmptyValue

public static Iterable<BytesRef> insertEmptyValue(Iterable<BytesRef> iterable)

insert an empty byte[] to the front of this iterable

mapMissingToOrd0

public static Iterable<Number> mapMissingToOrd0(Iterable<Number> iterable)

remaps ord -1 to ord 0 on this iterable.

mapAllOrds

public static Iterable<Number> mapAllOrds(Iterable<Number> iterable)

remaps every ord+1 on this iterable