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java.lang.Objectorg.apache.lucene.util.AttributeSource
org.apache.lucene.analysis.TokenStream
org.apache.lucene.analysis.TokenFilter
org.apache.lucene.analysis.icu.ICUNormalizer2Filter
public class ICUNormalizer2Filter
Normalize token text with ICU's Normalizer2
With this filter, you can normalize text in the following ways:
If you use the defaults, this filter is a simple way to standardize Unicode text in a language-independent way for search:
Normalizer2,
FilteredNormalizer2| Nested Class Summary |
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| Nested classes/interfaces inherited from class org.apache.lucene.util.AttributeSource |
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org.apache.lucene.util.AttributeSource.AttributeFactory, org.apache.lucene.util.AttributeSource.State |
| Field Summary |
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| Fields inherited from class org.apache.lucene.analysis.TokenFilter |
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input |
| Constructor Summary | |
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ICUNormalizer2Filter(org.apache.lucene.analysis.TokenStream input)
Create a new Normalizer2Filter that combines NFKC normalization, Case Folding, and removes Default Ignorables (NFKC_Casefold) |
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ICUNormalizer2Filter(org.apache.lucene.analysis.TokenStream input,
com.ibm.icu.text.Normalizer2 normalizer)
Create a new Normalizer2Filter with the specified Normalizer2 |
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| Method Summary | |
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boolean |
incrementToken()
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| Methods inherited from class org.apache.lucene.analysis.TokenFilter |
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close, end, reset |
| Methods inherited from class org.apache.lucene.util.AttributeSource |
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addAttribute, addAttributeImpl, captureState, clearAttributes, cloneAttributes, copyTo, equals, getAttribute, getAttributeClassesIterator, getAttributeFactory, getAttributeImplsIterator, hasAttribute, hasAttributes, hashCode, reflectAsString, reflectWith, restoreState, toString |
| Methods inherited from class java.lang.Object |
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clone, finalize, getClass, notify, notifyAll, wait, wait, wait |
| Constructor Detail |
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public ICUNormalizer2Filter(org.apache.lucene.analysis.TokenStream input)
public ICUNormalizer2Filter(org.apache.lucene.analysis.TokenStream input,
com.ibm.icu.text.Normalizer2 normalizer)
input - streamnormalizer - normalizer to use| Method Detail |
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public final boolean incrementToken()
throws IOException
incrementToken in class org.apache.lucene.analysis.TokenStreamIOException
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