Package org.apache.lucene.analysis.no

Class NorwegianNormalizationFilter

java.lang.Object

org.apache.lucene.util.AttributeSource

org.apache.lucene.analysis.TokenStream

org.apache.lucene.analysis.TokenFilter

org.apache.lucene.analysis.no.NorwegianNormalizationFilter

All Implemented Interfaces:

Closeable, AutoCloseable, Unwrappable<TokenStream>

public final class NorwegianNormalizationFilter
extends TokenFilter

This filter normalize use of the interchangeable Scandinavian characters æÆäÄöÖøØ and folded variants (ae, oe, aa) by transforming them to åÅæÆøØ. This is similar to ScandinavianNormalizationFilter, except for the folding rules customized for Norwegian.

blåbærsyltetøj == blåbärsyltetöj == blaabaersyltetoej

See Also:

• ScandinavianNormalizationFilter

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.lucene.util.AttributeSource

AttributeSource.State

Field Summary

Fields inherited from class org.apache.lucene.analysis.TokenFilter

input

Fields inherited from class org.apache.lucene.analysis.TokenStream

DEFAULT_TOKEN_ATTRIBUTE_FACTORY

Constructor Summary

Constructors

Constructor	Description
NorwegianNormalizationFilter(TokenStream input)

Method Summary

Modifier and Type	Method	Description
final boolean	incrementToken()

Methods inherited from class org.apache.lucene.analysis.TokenFilter

close, end, reset, unwrap

Methods inherited from class org.apache.lucene.util.AttributeSource

addAttribute, addAttributeImpl, captureState, clearAttributes, cloneAttributes, copyTo, endAttributes, equals, getAttribute, getAttributeClassesIterator, getAttributeFactory, getAttributeImplsIterator, hasAttribute, hasAttributes, hashCode, reflectAsString, reflectWith, removeAllAttributes, restoreState, toString

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Details

NorwegianNormalizationFilter

public NorwegianNormalizationFilter(TokenStream input)

Method Details

incrementToken

public final boolean incrementToken()
                             throws IOException

Specified by:

incrementToken in class TokenStream

Throws:

IOException