// C++ informative line for the emacs editor: -*- C++ -*-
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
 * Copyright by The HDF Group.                                               *
 * Copyright by the Board of Trustees of the University of Illinois.         *
 * All rights reserved.                                                      *
 *                                                                           *
 * This file is part of HDF5.  The full HDF5 copyright notice, including     *
 * terms governing use, modification, and redistribution, is contained in    *
 * the COPYING file, which can be found at the root of the source code       *
 * distribution tree, or in https://support.hdfgroup.org/ftp/HDF5/releases.  *
 * If you do not have access to either file, you may request a copy from     *
 * help@hdfgroup.org.                                                        *
 * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */

#ifndef __CommonFG_H
#define __CommonFG_H

namespace H5 {

// Class forwarding
class Group;
class H5File;
class ArrayType;
class VarLenType;

/*! \class CommonFG
    \brief \a CommonFG is an abstract base class of H5Group.
*/
/* Note: This class is being deprecated gradually. */
class H5_DLLCPP CommonFG {
   public:
        // Opens a generic named datatype in this location.
        DataType openDataType(const char* name) const;
        DataType openDataType(const H5std_string& name) const;

        // Opens a named array datatype in this location.
        ArrayType openArrayType(const char* name) const;
        ArrayType openArrayType(const H5std_string& name) const;

        // Opens a named compound datatype in this location.
        CompType openCompType(const char* name) const;
        CompType openCompType(const H5std_string& name) const;

        // Opens a named enumeration datatype in this location.
        EnumType openEnumType(const char* name) const;
        EnumType openEnumType(const H5std_string& name) const;

        // Opens a named integer datatype in this location.
        IntType openIntType(const char* name) const;
        IntType openIntType(const H5std_string& name) const;

        // Opens a named floating-point datatype in this location.
        FloatType openFloatType(const char* name) const;
        FloatType openFloatType(const H5std_string& name) const;

        // Opens a named string datatype in this location.
        StrType openStrType(const char* name) const;
        StrType openStrType(const H5std_string& name) const;

        // Opens a named variable length datatype in this location.
        VarLenType openVarLenType(const char* name) const;
        VarLenType openVarLenType(const H5std_string& name) const;

#ifndef DOXYGEN_SHOULD_SKIP_THIS
        /// For subclasses, H5File and Group, to return the correct
        /// object id, i.e. file or group id.
        virtual hid_t getLocId() const = 0;


        /// For subclasses, H5File and Group, to throw appropriate exception.
        virtual void throwException(const H5std_string& func_name, const H5std_string& msg) const = 0;

        // Default constructor.
        CommonFG();

        // Noop destructor.
        virtual ~CommonFG();

    protected:
        virtual void p_setId(const hid_t new_id) = 0;

#endif // DOXYGEN_SHOULD_SKIP_THIS

}; // end of CommonFG
} // namespace H5

#endif // __CommonFG_H

/***************************************************************************
                                Design Note
                                ===========

September 2017:

        This class used to be base class of H5File as well, until the
        restructure that moved H5File to be subclass of H5Group.
*/