Package org.apache.cassandra.index.sai.analyzer

Class AbstractAnalyzer

java.lang.Object

org.apache.cassandra.index.sai.analyzer.AbstractAnalyzer

All Implemented Interfaces:

Iterator<ByteBuffer>

Direct Known Subclasses:

NonTokenizingAnalyzer

public abstract class AbstractAnalyzer
extends Object
implements Iterator<ByteBuffer>

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static interface	AbstractAnalyzer.AnalyzerFactory

Field Summary

Fields

Modifier and Type	Field	Description
protected ByteBuffer	next
protected String	nextLiteral

Constructor Summary

Constructors

Constructor	Description
AbstractAnalyzer()

Method Summary

Modifier and Type	Method	Description
void	end()	Call when tokenization is finished.
static AbstractAnalyzer.AnalyzerFactory	fromOptions(IndexTermType indexTermType, Map<String,String> options)
static Map<String,String>	getAnalyzerOptions(Map<String,String> options)
ByteBuffer	next()	Note: This method does not advance, as we rely on Iterator.hasNext() to buffer the next value.
void	remove()
void	reset(ByteBuffer input)
protected abstract void	resetInternal(ByteBuffer input)
abstract boolean	transformValue()

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.Iterator

forEachRemaining, hasNext

Field Details

next

protected ByteBuffer next

nextLiteral

protected String nextLiteral

Constructor Details

AbstractAnalyzer

public AbstractAnalyzer()

Method Details

transformValue

public abstract boolean transformValue()

Returns:

true if index value is transformed, e.g. normalized or lower-cased or tokenized.

end

public void end()

Call when tokenization is finished. Used by the LuceneAnalyzer.

next

public ByteBuffer next()

Note: This method does not advance, as we rely on Iterator.hasNext() to buffer the next value.

Specified by:

next in interface Iterator<ByteBuffer>

Returns:

the raw value currently buffered by this iterator

remove

public void remove()

Specified by:

remove in interface Iterator<ByteBuffer>

resetInternal

protected abstract void resetInternal(ByteBuffer input)

reset

public void reset(ByteBuffer input)

fromOptions

public static AbstractAnalyzer.AnalyzerFactory fromOptions(IndexTermType indexTermType,
 Map<String,String> options)

getAnalyzerOptions

public static Map<String,String> getAnalyzerOptions(Map<String,String> options)