ConstantScoreQuery.h

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// Copyright (c) 2009-2014 Alan Wright. All rights reserved.
// Distributable under the terms of either the Apache License (Version 2.0)
// or the GNU Lesser General Public License.
 
#ifndef CONSTANTSCOREQUERY_H
#define CONSTANTSCOREQUERY_H
 
#include "Query.h"
#include "Weight.h"
#include "Scorer.h"
 
namespace Lucene {

class LPPAPI ConstantScoreQuery : public Query {
public:
    ConstantScoreQuery(const FilterPtr& filter);
    virtual ~ConstantScoreQuery();
 
    LUCENE_CLASS(ConstantScoreQuery);
 
protected:
    FilterPtr filter;
 
public:
    using Query::toString;

    FilterPtr getFilter();
 
    virtual QueryPtr rewrite(const IndexReaderPtr& reader);
    virtual void extractTerms(SetTerm terms);
 
    virtual WeightPtr createWeight(const SearcherPtr& searcher);

    virtual String toString(const String& field);
 
    virtual bool equals(const LuceneObjectPtr& other);
    virtual int32_t hashCode();
    virtual LuceneObjectPtr clone(const LuceneObjectPtr& other = LuceneObjectPtr());
 
    friend class ConstantWeight;
    friend class ConstantScorer;
};
 
}
 
#endif