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+// Copyright 2011 The Kyua Authors.
+// 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 Google Inc. 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 BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE 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.
+
+/// \file utils/sqlite/statement.hpp
+/// Wrapper classes and utilities for SQLite statement processing.
+///
+/// This module contains thin RAII wrappers around the SQLite 3 structures
+/// representing statements.
+
+#if !defined(UTILS_SQLITE_STATEMENT_HPP)
+#define UTILS_SQLITE_STATEMENT_HPP
+
+#include "utils/sqlite/statement_fwd.hpp"
+
+extern "C" {
+#include <stdint.h>
+}
+
+#include <memory>
+#include <string>
+
+#include "utils/sqlite/database_fwd.hpp"
+
+namespace utils {
+namespace sqlite {
+
+
+/// Representation of a BLOB.
+class blob {
+public:
+    /// Memory representing the contents of the blob, or NULL if empty.
+    ///
+    /// This memory must remain valid throughout the life of this object, as we
+    /// do not grab ownership of the memory.
+    const void* memory;
+
+    /// Number of bytes in memory.
+    int size;
+
+    /// Constructs a new blob.
+    ///
+    /// \param memory_ Pointer to the contents of the blob.
+    /// \param size_ The size of memory_.
+    blob(const void* memory_, const int size_) :
+        memory(memory_), size(size_)
+    {
+    }
+};
+
+
+/// Representation of a SQL NULL value.
+class null {
+};
+
+
+/// A RAII model for an SQLite 3 statement.
+class statement {
+    struct impl;
+
+    /// Pointer to the shared internal implementation.
+    std::shared_ptr< impl > _pimpl;
+
+    statement(database&, void*);
+    friend class database;
+
+public:
+    ~statement(void);
+
+    bool step(void);
+    void step_without_results(void);
+
+    int column_count(void);
+    std::string column_name(const int);
+    type column_type(const int);
+    int column_id(const char*);
+
+    blob column_blob(const int);
+    double column_double(const int);
+    int column_int(const int);
+    int64_t column_int64(const int);
+    std::string column_text(const int);
+    int column_bytes(const int);
+
+    blob safe_column_blob(const char*);
+    double safe_column_double(const char*);
+    int safe_column_int(const char*);
+    int64_t safe_column_int64(const char*);
+    std::string safe_column_text(const char*);
+    int safe_column_bytes(const char*);
+
+    void reset(void);
+
+    void bind(const int, const blob&);
+    void bind(const int, const double);
+    void bind(const int, const int);
+    void bind(const int, const int64_t);
+    void bind(const int, const null&);
+    void bind(const int, const std::string&);
+    template< class T > void bind(const char*, const T&);
+
+    int bind_parameter_count(void);
+    int bind_parameter_index(const std::string&);
+    std::string bind_parameter_name(const int);
+
+    void clear_bindings(void);
+};
+
+
+}  // namespace sqlite
+}  // namespace utils
+
+#endif  // !defined(UTILS_SQLITE_STATEMENT_HPP)