dbaccess/source/inc/apitools.hxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
   3  * This file is part of the LibreOffice project.
   4  *
   5  * This Source Code Form is subject to the terms of the Mozilla Public
   6  * License, v. 2.0. If a copy of the MPL was not distributed with this
   7  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
   8  *
   9  * This file incorporates work covered by the following license notice:
  10  *
  11  *   Licensed to the Apache Software Foundation (ASF) under one or more
  12  *   contributor license agreements. See the NOTICE file distributed
  13  *   with this work for additional information regarding copyright
  14  *   ownership. The ASF licenses this file to you under the Apache
  15  *   License, Version 2.0 (the "License"); you may not use this file
  16  *   except in compliance with the License. You may obtain a copy of
  17  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
  18  */
  19
  20 #pragma once
  21
  22 #include <sal/config.h>
  23
  24 #include <cppuhelper/component.hxx>
  25 #include <osl/mutex.hxx>
  26
  27 // OSubComponent - a component which holds a hard ref to its parent
  28 //                 and is been hold itself (by the parent) with a weak ref
  29 class OSubComponent : public ::cppu::OComponentHelper
  30 {
  31 protected:
  32     // the parent must support the tunnel implementation
  33     css::uno::Reference< css::uno::XInterface > m_xParent;
  34     virtual ~OSubComponent() override;
  35
  36 public:
  37     OSubComponent(::osl::Mutex& _rMutex,
  38                   const css::uno::Reference< css::uno::XInterface >& _xParent);
  39
  40 // css::lang::XTypeProvider
  41     virtual css::uno::Sequence< css::uno::Type > SAL_CALL getTypes() override;
  42
  43 // css::uno::XInterface
  44     virtual css::uno::Any SAL_CALL queryInterface( const css::uno::Type & rType ) override;
  45     virtual void SAL_CALL release() noexcept override;
  46
  47     operator css::uno::Reference< css::uno::XInterface > () const
  48         { return static_cast<css::uno::XWeak *>(const_cast<OSubComponent *>(this)); }
  49
  50 };
  51
  52 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */