--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/searchengine/cpix/cpix/inc/private/queryparser.h	Mon Jun 28 10:34:53 2010 +0530
@@ -0,0 +1,130 @@
+/*
+* Copyright (c) 2010 Nokia Corporation and/or its subsidiary(-ies).
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of "Eclipse Public License v1.0"
+* which accompanies this distribution, and is available
+* at the URL "http://www.eclipse.org/legal/epl-v10.html".
+*
+* Initial Contributors:
+* Nokia Corporation - initial contribution.
+*
+* Contributors:
+*
+* Description: 
+*
+*/
+
+
+#ifndef QUERYPARSER_H_
+#define QUERYPARSER_H_
+
+#include <memory>
+
+#include "CLucene.h"
+#include "CLucene/queryParser/MultiFieldQueryParser.h"
+
+#include "prefixopt.h"
+
+#include "cpixsearch.h"
+
+namespace Cpix {
+
+	class IQueryParser {
+		
+		public:
+		
+			virtual ~IQueryParser();
+		
+			virtual std::auto_ptr<lucene::search::Query> parse(const wchar_t* query) = 0;
+			
+			// Not really a fundamental property of a query parser:
+			virtual const wchar_t* getField() const = 0;
+			
+			virtual void setDefaultOperator(cpix_QP_Operator op) = 0;
+	};
+
+	class CLuceneQueryParser : public IQueryParser {
+		
+		public: 
+		
+			~CLuceneQueryParser();
+	
+			CLuceneQueryParser(const wchar_t* field, lucene::analysis::Analyzer& analyzer);
+			
+			virtual std::auto_ptr<lucene::search::Query> parse(const wchar_t* query);
+
+			virtual const wchar_t* getField() const;
+			
+			virtual void setDefaultOperator(cpix_QP_Operator op);
+
+		private: 
+			
+			std::auto_ptr<lucene::queryParser::QueryParser> parser_;  
+		
+	};
+	
+	class CLuceneMultiFieldQueryParser : public IQueryParser {
+		
+		public: 
+		
+			~CLuceneMultiFieldQueryParser();
+	
+			CLuceneMultiFieldQueryParser(const wchar_t** fields, 
+										 lucene::analysis::Analyzer& analyzer, 
+										 lucene::queryParser::BoostMap& boostMap);
+			
+			virtual std::auto_ptr<lucene::search::Query> parse(const wchar_t* query);
+			
+			virtual const wchar_t* getField() const;
+			
+			virtual void setDefaultOperator(cpix_QP_Operator op);
+			
+		private: 
+			
+			std::auto_ptr<lucene::queryParser::QueryParser> parser_;  
+		
+	};
+	
+
+	class PrefixOptQueryParser : public IQueryParser {
+		
+		public:
+		
+			PrefixOptQueryParser(std::auto_ptr<IQueryParser> parser);
+			
+			~PrefixOptQueryParser(); 
+			
+			virtual std::auto_ptr<lucene::search::Query> parse(const wchar_t* query);
+
+			virtual const wchar_t* getField() const;
+			
+			virtual void setDefaultOperator(cpix_QP_Operator op);
+
+		private:
+			
+			PrefixOptQueryRewriter prefixOpt_; 
+			
+			std::auto_ptr<IQueryParser> parser_;
+		
+	};
+	
+	// 
+	// Following factory methods apply necessary optimization wraps
+	// over the query parsers.
+	// 
+	
+	
+	IQueryParser* CreateCLuceneQueryParser(const wchar_t* defaultField, 
+									       lucene::analysis::Analyzer* analyzer);
+	
+	IQueryParser* CreateCLuceneMultiFieldQueryParser(
+											const wchar_t* fields[], 
+											lucene::analysis::Analyzer* analyzer, 
+											lucene::queryParser::BoostMap* boostMap);
+	
+	IQueryParser* CreatePrefixQueryParser(const wchar_t* field); 
+
+}
+
+#endif /* QUERYPARSER_H_ */