DisjunctionMaxQuery.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 DISJUNCTIONMAXQUERY_H
#define DISJUNCTIONMAXQUERY_H
 
#include "Query.h"
 
namespace Lucene {

class LPPAPI DisjunctionMaxQuery : public Query {
public:
    DisjunctionMaxQuery(double tieBreakerMultiplier = 0.0);

    DisjunctionMaxQuery(Collection<QueryPtr> disjuncts, double tieBreakerMultiplier);
 
    virtual ~DisjunctionMaxQuery();
 
    LUCENE_CLASS(DisjunctionMaxQuery);
 
protected:
    Collection<QueryPtr> disjuncts;

    double tieBreakerMultiplier;
 
public:
    using Query::toString;

    void add(const QueryPtr& query);

    void add(Collection<QueryPtr> disjuncts);

    Collection<QueryPtr>::iterator begin();
    Collection<QueryPtr>::iterator end();

    virtual WeightPtr createWeight(const SearcherPtr& searcher);

    virtual QueryPtr rewrite(const IndexReaderPtr& reader);

    virtual LuceneObjectPtr clone(const LuceneObjectPtr& other = LuceneObjectPtr());

    virtual void extractTerms(SetTerm terms);

    virtual String toString(const String& field);

    virtual bool equals(const LuceneObjectPtr& other);
 
    virtual int32_t hashCode();
 
    friend class DisjunctionMaxWeight;
};
 
}
 
#endif