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diff --git a/src/lib/database/dbaccess_parser.h b/src/lib/database/dbaccess_parser.h
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+// Copyright (C) 2012-2021 Internet Systems Consortium, Inc. ("ISC")
+//
+// This Source Code Form is subject to the terms of the Mozilla Public
+// License, v. 2.0. If a copy of the MPL was not distributed with this
+// file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+#ifndef DBACCESS_PARSER_H
+#define DBACCESS_PARSER_H
+
+#include <cc/data.h>
+#include <cc/simple_parser.h>
+#include <database/database_connection.h>
+#include <exceptions/exceptions.h>
+
+#include <string>
+
+namespace isc {
+namespace db {
+
+/// @brief Parse Database Parameters
+///
+/// This class is the parser for the database configuration.  This is a
+/// map under the top-level "lease-database", "hosts-database" and
+/// "config-database" elements, and comprises a map of strings.
+class DbAccessParser: public isc::data::SimpleParser {
+public:
+    /// @brief Constructor
+    DbAccessParser();
+
+    /// The destructor.
+    virtual ~DbAccessParser()
+    {}
+
+    /// @brief Parse configuration value.
+    ///
+    /// Parses the set of strings forming the database access specification and
+    /// checks that all are OK.  In particular it checks:
+    ///
+    /// - "type" is "memfile", "mysql" or "postgresql"
+    /// - "lfc-interval" is a number from the range of 0 to 4294967295.
+    /// - "connect-timeout" is a number from the range of 0 to 4294967295.
+    /// - "port" is a number from the range of 0 to 65535.
+    ///
+    /// Once all has been validated, constructs the database access string.
+    ///
+    /// @param [out] access_string Generated database access string.
+    /// @param database_config The configuration value for the "*-database"
+    ///        identifier.
+    ///
+    /// @throw isc::dhcp::DbConfigError The 'type' keyword contains an
+    ///        unknown database type or is missing from the list of
+    ///        database access keywords.
+    void parse(std::string& access_string,
+               isc::data::ConstElementPtr database_config);
+
+    /// @brief Get database access parameters
+    ///
+    /// Used in testing to check that the configuration information has been
+    /// parsed correctly.
+    ///
+    /// @return Reference to the internal map of keyword/value pairs
+    ///         representing database access information.  This is valid only
+    ///         for so long as the parser remains in existence.
+    const DatabaseConnection::ParameterMap& getDbAccessParameters() const {
+        return (values_);
+    }
+protected:
+
+    /// @brief Construct database access string
+    ///
+    /// Constructs the database access string from the stored parameters.
+    ///
+    /// @return Database access string
+    std::string getDbAccessString() const;
+
+private:
+
+    DatabaseConnection::ParameterMap values_; ///< Stored parameter values
+};
+
+}  // namespace db
+}  // namespace isc
+
+#endif // DBACCESS_PARSER_H