public final class NGramTokenFilter
extends org.apache.lucene.analysis.TokenFilter
Modifier and Type | Field and Description |
---|---|
static int |
DEFAULT_MAX_NGRAM_SIZE |
static int |
DEFAULT_MIN_NGRAM_SIZE |
Constructor and Description |
---|
NGramTokenFilter(org.apache.lucene.analysis.TokenStream input)
Creates NGramTokenFilter with default min and max n-grams.
|
NGramTokenFilter(org.apache.lucene.analysis.TokenStream input,
int minGram,
int maxGram)
Creates NGramTokenFilter with given min and max n-grams.
|
Modifier and Type | Method and Description |
---|---|
boolean |
incrementToken()
Returns the next token in the stream, or null at EOS.
|
void |
reset() |
addAttribute, addAttributeImpl, captureState, clearAttributes, cloneAttributes, copyTo, equals, getAttribute, getAttributeClassesIterator, getAttributeFactory, getAttributeImplsIterator, hasAttribute, hasAttributes, hashCode, reflectAsString, reflectWith, restoreState, toString
public static final int DEFAULT_MIN_NGRAM_SIZE
public static final int DEFAULT_MAX_NGRAM_SIZE
public NGramTokenFilter(org.apache.lucene.analysis.TokenStream input, int minGram, int maxGram)
input
- TokenStream
holding the input to be tokenizedminGram
- the smallest n-gram to generatemaxGram
- the largest n-gram to generatepublic NGramTokenFilter(org.apache.lucene.analysis.TokenStream input)
input
- TokenStream
holding the input to be tokenizedpublic final boolean incrementToken() throws IOException
incrementToken
in class org.apache.lucene.analysis.TokenStream
IOException
public void reset() throws IOException
reset
in class org.apache.lucene.analysis.TokenFilter
IOException