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ConstantScoreQuery.h
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1 // Copyright (c) 2009-2011 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 {
20 public:
21 ConstantScoreQuery(FilterPtr filter);
22 virtual ~ConstantScoreQuery();
23
24 LUCENE_CLASS(ConstantScoreQuery);
25
26 protected:
27 FilterPtr filter;
28
29 public:
30 using Query::toString;
31
33 FilterPtr getFilter();
34
35 virtual QueryPtr rewrite(IndexReaderPtr reader);
36 virtual void extractTerms(SetTerm terms);
37
38 virtual WeightPtr createWeight(SearcherPtr searcher);
39
41 virtual String toString(const String& field);
42
43 virtual bool equals(LuceneObjectPtr other);
44 virtual int32_t hashCode();
45 virtual LuceneObjectPtr clone(LuceneObjectPtr other = LuceneObjectPtr());
46
47 friend class ConstantWeight;
48 friend class ConstantScorer;
49 };
50 }
51
52 #endif

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