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diff --git a/gps/core/data-items/IDataItemCore.h b/gps/core/data-items/IDataItemCore.h
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+/* Copyright (c) 2015, 2017 The Linux Foundation. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *     * Redistributions of source code must retain the above copyright
+ *       notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ *       copyright notice, this list of conditions and the following
+ *       disclaimer in the documentation and/or other materials provided
+ *       with the distribution.
+ *     * Neither the name of The Linux Foundation, nor the names of its
+ *       contributors may be used to endorse or promote products derived
+ *       from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
+ * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
+ * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
+ * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
+ * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+#ifndef __IDATAITEMCORE_H__
+#define __IDATAITEMCORE_H__
+
+#include <string>
+#include <DataItemId.h>
+
+namespace loc_core {
+
+using namespace std;
+
+/**
+ * @brief IDataItemCore interface.
+ * @details IDataItemCore interface.
+ *
+ */
+class IDataItemCore {
+public:
+    /**
+     * @brief Gets Data item id.
+     * @details Gets Data item id.
+     * @return Data item id.
+     */
+    virtual DataItemId getId () = 0;
+
+    /**
+     * @brief Stringify.
+     * @details Stringify.
+     *
+     * @param valueStr Reference to string.
+     */
+    virtual void stringify (string & valueStr) = 0;
+
+    /**
+     * @brief copy.
+     * @details copy.
+     *
+     * @param src Where to copy from.
+     * @param dataItemCopied Boolean flag indicated whether or not copied.
+     *
+     * @return Zero for success or non zero for failure.
+     */
+    virtual int32_t copy (IDataItemCore * src, bool *dataItemCopied = nullptr) = 0;
+
+    /**
+     * @brief Destructor.
+     * @details Destructor.
+     */
+    virtual ~IDataItemCore () {}
+};
+
+} // namespace loc_core
+
+#endif // __IDATAITEMCORE_H__