Package org.apache.lucene.search.spans
Class SpanNotQuery
- java.lang.Object
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- org.apache.lucene.search.Query
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- org.apache.lucene.search.spans.SpanQuery
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- org.apache.lucene.search.spans.SpanNotQuery
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- All Implemented Interfaces:
Serializable
,Cloneable
public class SpanNotQuery extends SpanQuery implements Cloneable
Removes matches which overlap with another SpanQuery.- See Also:
- Serialized Form
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Constructor Summary
Constructors Constructor Description SpanNotQuery(SpanQuery include, SpanQuery exclude)
Construct a SpanNotQuery matching spans frominclude
which have no overlap with spans fromexclude
.
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description Object
clone()
Returns a clone of this query.boolean
equals(Object o)
Returns true iffo
is equal to this.void
extractTerms(Set<Term> terms)
Expert: adds all terms occurring in this query to the terms set.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.int
hashCode()
Query
rewrite(IndexReader reader)
Expert: called to re-write queries into primitive queries.String
toString(String field)
Prints a query to a string, withfield
assumed to be the default field and omitted.-
Methods inherited from class org.apache.lucene.search.spans.SpanQuery
createWeight
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Methods inherited from class org.apache.lucene.search.Query
combine, getBoost, getSimilarity, mergeBooleanQueries, setBoost, toString, weight
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Method Detail
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getInclude
public SpanQuery getInclude()
Return the SpanQuery whose matches are filtered.
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getExclude
public SpanQuery getExclude()
Return the SpanQuery whose matches must not overlap those returned.
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getField
public String getField()
Description copied from class:SpanQuery
Returns the name of the field matched by this query.
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extractTerms
public void extractTerms(Set<Term> terms)
Description copied from class:Query
Expert: adds all terms occurring in this query to the terms set. Only works if this query is in itsrewritten
form.- Overrides:
extractTerms
in classQuery
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toString
public String toString(String field)
Description copied from class:Query
Prints a query to a string, withfield
assumed to be the default field and omitted.The representation used is one that is supposed to be readable by
QueryParser
. However, there are the following limitations:- If the query was created by the parser, the printed representation may not be exactly what was parsed. For example, characters that need to be escaped will be represented without the required backslash.
- Some of the more complicated queries (e.g. span queries) don't have a representation that can be parsed by QueryParser.
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getSpans
public Spans getSpans(IndexReader reader) 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 classSpanQuery
- Throws:
IOException
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rewrite
public Query rewrite(IndexReader reader) throws IOException
Description copied from class:Query
Expert: called to re-write queries into primitive queries. For example, a PrefixQuery will be rewritten into a BooleanQuery that consists of TermQuerys.- Overrides:
rewrite
in classQuery
- Throws:
IOException
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equals
public boolean equals(Object o)
Returns true iffo
is equal to this.
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