#include "CLucene/StdHeader.h"
#ifndef _lucene_search_PrefixQuery
#define _lucene_search_PrefixQuery
#ifndef NO_PREFIX_QUERY

#include "CLucene/index/Term.h"
#include "CLucene/index/Terms.h"
#include "CLucene/index/IndexReader.h"
#include "SearchHeader.h"
#include "BooleanQuery.h"
#include "TermQuery.h"
#include "CLucene/util/StringBuffer.h"

using namespace lucene::index;
namespace lucene{ namespace search{ 
	/** A Query that matches documents containing terms with a specified prefix. */
	class PrefixQuery: public Query {
	private:
		Term* prefix;
		BooleanQuery* query;
		IndexReader* reader;
	public:

		/** Constructs a query for terms starting with <code>prefix</code>. */
		PrefixQuery(Term* Prefix);
		~PrefixQuery();
		const char_t* getQueryName()const;

		void prepare(IndexReader& reader) ;

		float_t sumOfSquaredWeights(Searcher& searcher);

		void normalize(const float_t norm) ;

		Scorer* scorer(IndexReader& reader) ;

		BooleanQuery* getQuery() ;

		/** Prints a user-readable version of this query. */
		const char_t* toString(const char_t* field) ;
	};
}}
#endif
#endif