org.apache.lucene.search.spans

Class SpanNotQuery

Implemented Interfaces:
Cloneable, java.io.Serializable

public class SpanNotQuery
extends SpanQuery

Removes matches which overlap with another SpanQuery.
See Also:
Serialized Form

Constructor Summary

SpanNotQuery(SpanQuery include, SpanQuery exclude)
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.
Spans
getSpans(IndexReader reader)
Expert: Returns the matches for this query in an index.
Collection
getTerms()
Returns a collection of all terms matched by this query.
String
toString(String field)
Prints a query to a string, with field as the default field for terms.

Methods inherited from class org.apache.lucene.search.spans.SpanQuery

createWeight, getField, getSpans, getTerms

Methods inherited from class org.apache.lucene.search.Query

clone, combine, createWeight, getBoost, getSimilarity, mergeBooleanQueries, rewrite, setBoost, toString, toString, weight

Constructor Details

SpanNotQuery

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

Method Details

getExclude

public SpanQuery getExclude()
Return the SpanQuery whose matches must not overlap those returned.

getField

public String getField()
Returns the name of the field matched by this query.
Overrides:
getField in interface SpanQuery

getInclude

public SpanQuery getInclude()
Return the SpanQuery whose matches are filtered.

getSpans

public Spans getSpans(IndexReader reader)
            throws IOException
Expert: Returns the matches for this query in an index. Used internally to search for spans.
Overrides:
getSpans in interface SpanQuery

getTerms

public Collection getTerms()
Returns a collection of all terms matched by this query.
Overrides:
getTerms in interface SpanQuery

toString

public String toString(String field)
Prints a query to a string, with field as the default field for terms.

The representation used is one that is readable by QueryParser (although, if the query was created by the parser, the printed representation may not be exactly what was parsed).

Overrides:
toString in interface Query

Copyright © 2000-2006 Apache Software Foundation. All Rights Reserved.