org.apache.lucene.chunk
Class SpanChunkedNotQuery

Object
  Query
      SpanQuery
          SpanChunkedNotQuery

All Implemented Interfaces:

Serializable, Cloneable

public class SpanChunkedNotQuery
extends SpanQuery

Removes matches which overlap with another SpanQuery, taking into account overlap between adjacent chunks in a chunked index.

See Also:

Serialized Form

Field Summary

private int	chunkBump
private SpanQuery	exclude
private SpanQuery	include
private int	slop

Constructor Summary

SpanChunkedNotQuery(SpanQuery include, SpanQuery exclude, int slop)
Construct a SpanNotQuery matching spans from include which have no overlap with spans from exclude.

Method Summary

SpanQuery	getExclude() Return the SpanQuery whose matches must not overlap those returned.
String	getField() Returns the name of the field matched by this query.
SpanQuery	getInclude() Return the SpanQuery whose matches are filtered.
int	getSlop() Return the distance that must separate matches from excluded spans.
Spans	getSpans(IndexReader reader, Searcher searcher) Expert: Returns the matches for this query in an index.
Query[]	getSubQueries()
Collection	getTerms() Returns a collection of all terms matched by this query.
Query	rewrite(IndexReader reader)
void	setSlop(int slop, int chunkBump) Set the distance that must separate matches from excluded spans.
String	toString(String field)

Methods inherited from class SpanQuery

createWeight, getSpanRecording, setSpanRecording

Methods inherited from class Query

clone, combine, extractTerms, getBoost, getSimilarity, mergeBooleanQueries, setBoost, toString, weight

Methods inherited from class Object

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

Field Detail

include

private SpanQuery include

exclude

private SpanQuery exclude

slop

private int slop

chunkBump

private int chunkBump

Constructor Detail

SpanChunkedNotQuery

public SpanChunkedNotQuery(SpanQuery include,
                           SpanQuery exclude,
                           int slop)

Construct a SpanNotQuery matching spans from include which have no overlap with spans from exclude.

Method Detail

getInclude

public SpanQuery getInclude()

Return the SpanQuery whose matches are filtered.

getExclude

public SpanQuery getExclude()

Return the SpanQuery whose matches must not overlap those returned.

setSlop

public void setSlop(int slop,
                    int chunkBump)

Set the distance that must separate matches from excluded spans.

getSlop

public int getSlop()

Return the distance that must separate matches from excluded spans.

getField

public String getField()

Description copied from class: SpanQuery

Returns the name of the field matched by this query.

Specified by:

getField in class SpanQuery

getTerms

public Collection getTerms()

Description copied from class: SpanQuery

Returns a collection of all terms matched by this query.

Specified by:

getTerms in class SpanQuery

getSubQueries

public Query[] getSubQueries()

rewrite

public Query rewrite(IndexReader reader)
              throws IOException

Overrides:

rewrite in class Query

Throws:

IOException

toString

public String toString(String field)

Specified by:

toString in class Query

getSpans

public Spans getSpans(IndexReader reader,
                      Searcher searcher)
               throws IOException

Description copied from class: SpanQuery

Expert: Returns the matches for this query in an index. Used internally to search for spans.

Specified by:

getSpans in class SpanQuery

Throws:

IOException