org.apache.lucene.search

Class TokenStreamToTermAutomatonQuery

java.lang.Object

org.apache.lucene.search.TokenStreamToTermAutomatonQuery

public class TokenStreamToTermAutomatonQuery
extends java.lang.Object

Consumes a TokenStream and creates an TermAutomatonQuery where the transition labels are tokens from the TermToBytesRefAttribute.

This code is very new and likely has exciting bugs!

Field Summary

Fields

Modifier and Type	Field and Description
private boolean	preservePositionIncrements

Constructor Summary

Constructors

Constructor and Description
TokenStreamToTermAutomatonQuery() Sole constructor.

Method Summary

Modifier and Type	Method and Description
void	setPreservePositionIncrements(boolean enablePositionIncrements) Whether to generate holes in the automaton for missing positions, true by default.
TermAutomatonQuery	toQuery(java.lang.String field, TokenStream in) Pulls the graph (including PositionLengthAttribute) from the provided TokenStream, and creates the corresponding automaton where arcs are bytes (or Unicode code points if unicodeArcs = true) from each term.

Methods inherited from class java.lang.Object

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

Field Detail

preservePositionIncrements

private boolean preservePositionIncrements

Constructor Detail

TokenStreamToTermAutomatonQuery

public TokenStreamToTermAutomatonQuery()

Sole constructor.

Method Detail

setPreservePositionIncrements

public void setPreservePositionIncrements(boolean enablePositionIncrements)

Whether to generate holes in the automaton for missing positions, true by default.

toQuery

public TermAutomatonQuery toQuery(java.lang.String field,
                                  TokenStream in)
                           throws java.io.IOException

Pulls the graph (including PositionLengthAttribute) from the provided TokenStream, and creates the corresponding automaton where arcs are bytes (or Unicode code points if unicodeArcs = true) from each term.

Throws:

java.io.IOException