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ConstantScoreQuery.h
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1 // Copyright (c) 2009-2014 Alan Wright. All rights reserved.
3 // Distributable under the terms of either the Apache License (Version 2.0)
4 // or the GNU Lesser General Public License.
6
7 #ifndef CONSTANTSCOREQUERY_H
8 #define CONSTANTSCOREQUERY_H
9
10 #include "Query.h"
11 #include "Weight.h"
12 #include "Scorer.h"
13
14 namespace Lucene {
15
18 class LPPAPI ConstantScoreQuery : public Query {
19 public:
20 ConstantScoreQuery(const FilterPtr& filter);
21 virtual ~ConstantScoreQuery();
22
23 LUCENE_CLASS(ConstantScoreQuery);
24
25 protected:
26 FilterPtr filter;
27
28 public:
29 using Query::toString;
30
32 FilterPtr getFilter();
33
34 virtual QueryPtr rewrite(const IndexReaderPtr& reader);
35 virtual void extractTerms(SetTerm terms);
36
37 virtual WeightPtr createWeight(const SearcherPtr& searcher);
38
40 virtual String toString(const String& field);
41
42 virtual bool equals(const LuceneObjectPtr& other);
43 virtual int32_t hashCode();
44 virtual LuceneObjectPtr clone(const LuceneObjectPtr& other = LuceneObjectPtr());
45
46 friend class ConstantWeight;
47 friend class ConstantScorer;
48 };
49
50 }
51
52 #endif
Lucene::Query::toString
virtual String toString()
Prints a query to a string.
Lucene::LuceneObjectPtr
boost::shared_ptr< LuceneObject > LuceneObjectPtr
Definition: LuceneTypes.h:539
Lucene::WeightPtr
boost::shared_ptr< Weight > WeightPtr
Definition: LuceneTypes.h:480
Lucene::ConstantScoreQuery
A query that wraps a filter and simply returns a constant score equal to the query boost for every do...
Definition: ConstantScoreQuery.h:18
Scorer.h
Lucene::SearcherPtr
boost::shared_ptr< Searcher > SearcherPtr
Definition: LuceneTypes.h:434
Query.h
Lucene::Query
The abstract base class for queries.
Definition: Query.h:31
Lucene::QueryPtr
boost::shared_ptr< Query > QueryPtr
Definition: LuceneTypes.h:420
Lucene::IndexReaderPtr
boost::shared_ptr< IndexReader > IndexReaderPtr
Definition: LuceneTypes.h:157
LUCENE_CLASS
#define LUCENE_CLASS(Name)
Definition: LuceneObject.h:24
Lucene
Definition: AbstractAllTermDocs.h:12
Weight.h
Lucene::FilterPtr
boost::shared_ptr< Filter > FilterPtr
Definition: LuceneTypes.h:358

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