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diff --git a/lib-phone/ph-dialer/inc/predictive-number/PhDialerPredictiveNumber.h b/lib-phone/ph-dialer/inc/predictive-number/PhDialerPredictiveNumber.h
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+/*
+ * Copyright (c) 2009-2015 Samsung Electronics Co., Ltd All Rights Reserved
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
+
+#ifndef _PH_DIALER_PREDICTIVE_NUMBER_
+#define _PH_DIALER_PREDICTIVE_NUMBER_
+
+#include <string>
+
+#include "PhDialerSearchInfo.h"
+#include "PhDialerPredictiveNumberTypes.h"
+
+namespace Ph {
+
+	namespace Dialer {
+
+		/**
+		 * @brief This class provides incremental search logic for predictive number functionality
+		 */
+		class PredictiveNumber
+		{
+		public:
+			PredictiveNumber();
+
+			/**
+			 * @brief Perform incremental search
+			 * @param[in]	number		Value to find
+			 */
+			void search(const std::string &number);
+
+			/**
+			 * @brief Retrieves result list
+			 * @return Result list or nullptr on empty list
+			 */
+			const SearchList *getSearchResult() const;
+
+			/**
+			 * @return true if there is no results, otherwise false
+			 */
+			bool empty() const;
+
+			/**
+			 * @brief make search like a first time
+			 * @param[in] number value to find
+			 */
+			void searchFromScratch(const std::string &number);
+
+		private:
+			void distinctLogs(SearchList &searchList);
+			void firstSearch(const std::string &number);
+			SearchList searchInDB(const std::string &number);
+			void chooseSearch(const std::string &number);
+
+			bool searchInCache(Cache::iterator from, const std::string &number);
+			Cache::reverse_iterator firstMismatch(const std::string &number);
+			Cache::reverse_iterator skipEmptyResults(size_t offset);
+
+			void clear();
+
+			bool needSearch(const std::string &number);
+
+			std::string m_Number;
+			Cache m_PredictiveNumberCache;
+			int m_LastFoundIndex;
+		};
+	}
+}
+
+#endif //_PH_DIALER_PREDICTIVE_NUMBER_