Package org.apache.lucene.analysis.miscellaneous

Class ScandinavianNormalizer

java.lang.Object

org.apache.lucene.analysis.miscellaneous.ScandinavianNormalizer

public final class ScandinavianNormalizer
extends java.lang.Object

This Normalizer does the heavy lifting for a set of Scandinavian normalization filters, normalizing use of the interchangeable Scandinavian characters æÆäÄöÖøØ and folded variants (aa, ao, ae, oe and oo) by transforming them to åÅæÆøØ.

Since:

9.0

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	ScandinavianNormalizer.Foldings	List of possible foldings that can be used when configuring the filter

Field Summary

Fields

Modifier and Type	Field	Description
(package private) static char	aa
(package private) static char	AA
(package private) static char	ae
(package private) static char	AE
(package private) static char	ae_se
(package private) static char	AE_se
static java.util.Set<ScandinavianNormalizer.Foldings>	ALL_FOLDINGS
private java.util.Set<ScandinavianNormalizer.Foldings>	foldings
(package private) static char	oe
(package private) static char	OE
(package private) static char	oe_se
(package private) static char	OE_se

Constructor Summary

Constructors

Constructor	Description
ScandinavianNormalizer(java.util.Set<ScandinavianNormalizer.Foldings> foldings)	Create the instance, while choosing which foldings to apply.

Method Summary

Modifier and Type	Method	Description
int	processToken(char[] buffer, int length)	Takes the original buffer and length as input.

Methods inherited from class java.lang.Object

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

Field Detail

foldings

private final java.util.Set<ScandinavianNormalizer.Foldings> foldings

ALL_FOLDINGS

public static final java.util.Set<ScandinavianNormalizer.Foldings> ALL_FOLDINGS

AA

static final char AA

See Also:

Constant Field Values

aa

static final char aa

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Constant Field Values

AE

static final char AE

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Constant Field Values

ae

static final char ae

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Constant Field Values

AE_se

static final char AE_se

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Constant Field Values

ae_se

static final char ae_se

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Constant Field Values

OE

static final char OE

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Constant Field Values

oe

static final char oe

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Constant Field Values

OE_se

static final char OE_se

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Constant Field Values

oe_se

static final char oe_se

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Constant Field Values

Constructor Detail

ScandinavianNormalizer

public ScandinavianNormalizer(java.util.Set<ScandinavianNormalizer.Foldings> foldings)

Create the instance, while choosing which foldings to apply. This may differ between Norwegian, Danish and Swedish.

Parameters:

foldings - a Set of Foldings to apply (i.e. AE, OE, AA, AO, OO)

Method Detail

processToken

public int processToken(char[] buffer,
                        int length)

Takes the original buffer and length as input. Modifies the buffer in-place and returns new length

Returns:

new length