QxOrm  1.2.6
C++ Object Relational Mapping library
QxFunction_0.h
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00001 /****************************************************************************
00002 **
00003 ** http://www.qxorm.com/
00004 ** Copyright (C) 2013 Lionel Marty (contact@qxorm.com)
00005 **
00006 ** This file is part of the QxOrm library
00007 **
00008 ** This software is provided 'as-is', without any express or implied
00009 ** warranty. In no event will the authors be held liable for any
00010 ** damages arising from the use of this software
00011 **
00012 ** Commercial Usage
00013 ** Licensees holding valid commercial QxOrm licenses may use this file in
00014 ** accordance with the commercial license agreement provided with the
00015 ** Software or, alternatively, in accordance with the terms contained in
00016 ** a written agreement between you and Lionel Marty
00017 **
00018 ** GNU General Public License Usage
00019 ** Alternatively, this file may be used under the terms of the GNU
00020 ** General Public License version 3.0 as published by the Free Software
00021 ** Foundation and appearing in the file 'license.gpl3.txt' included in the
00022 ** packaging of this file. Please review the following information to
00023 ** ensure the GNU General Public License version 3.0 requirements will be
00024 ** met : http://www.gnu.org/copyleft/gpl.html
00025 **
00026 ** If you are unsure which license is appropriate for your use, or
00027 ** if you have questions regarding the use of this file, please contact :
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00031 
00032 #ifndef _QX_FUNCTION_0_H_
00033 #define _QX_FUNCTION_0_H_
00034 
00035 #ifdef _MSC_VER
00036 #pragma once
00037 #endif
00038 
00046 #include <QxFunction/IxFunction.h>
00047 #include <QxFunction/QxParameters.h>
00048 
00049 namespace qx {
00050 
00055 template <class Owner, typename R>
00056 class QxFunction_0 : public IxFunction
00057 {
00058 
00059 public:
00060 
00061    typedef boost::function<R (Owner *)> type_fct;
00062    QX_FUNCTION_CLASS_MEMBER_FCT(QxFunction_0);
00063 
00064    virtual qx_bool isValidParams(const QString & params) const          { Q_UNUSED(params); return true; }
00065    virtual qx_bool isValidParams(const type_any_params & params) const  { Q_UNUSED(params); return true; }
00066 
00067 private:
00068 
00069    template <class T, bool bReturnValue /* = false */>
00070    struct QxInvokerFct
00071    {
00072       static inline qx_bool invoke(void * pOwner, const T & params, boost::any * ret, const QxFunction_0 * pThis)
00073       {
00074          QX_FUNCTION_INVOKE_START_WITH_OWNER();
00075          try { pThis->m_fct(static_cast<Owner *>(pOwner)); }
00076          QX_FUNCTION_CATCH_AND_RETURN_INVOKE();
00077       }
00078    };
00079 
00080    template <class T>
00081    struct QxInvokerFct<T, true>
00082    {
00083       static inline qx_bool invoke(void * pOwner, const T & params, boost::any * ret, const QxFunction_0 * pThis)
00084       {
00085          QX_FUNCTION_INVOKE_START_WITH_OWNER();
00086          try { R retTmp = pThis->m_fct(static_cast<Owner *>(pOwner)); if (ret) { (* ret) = boost::any(retTmp); } }
00087          QX_FUNCTION_CATCH_AND_RETURN_INVOKE();
00088       }
00089    };
00090 
00091 };
00092 
00093 template <typename R>
00094 class QxFunction_0<void, R> : public IxFunction
00095 {
00096 
00097 public:
00098 
00099    typedef boost::function<R ()> type_fct;
00100    QX_FUNCTION_CLASS_FCT(QxFunction_0);
00101 
00102    virtual qx_bool isValidParams(const QString & params) const          { Q_UNUSED(params); return true; }
00103    virtual qx_bool isValidParams(const type_any_params & params) const  { Q_UNUSED(params); return true; }
00104 
00105 private:
00106 
00107    template <class T, bool bReturnValue /* = false */>
00108    struct QxInvokerFct
00109    {
00110       static inline qx_bool invoke(const T & params, boost::any * ret, const QxFunction_0 * pThis)
00111       {
00112          QX_FUNCTION_INVOKE_START_WITHOUT_OWNER();
00113          try { pThis->m_fct(); }
00114          QX_FUNCTION_CATCH_AND_RETURN_INVOKE();
00115       }
00116    };
00117 
00118    template <class T>
00119    struct QxInvokerFct<T, true>
00120    {
00121       static inline qx_bool invoke(const T & params, boost::any * ret, const QxFunction_0 * pThis)
00122       {
00123          QX_FUNCTION_INVOKE_START_WITHOUT_OWNER();
00124          try { R retTmp = pThis->m_fct(); if (ret) { (* ret) = boost::any(retTmp); } }
00125          QX_FUNCTION_CATCH_AND_RETURN_INVOKE();
00126       }
00127    };
00128 
00129 };
00130 
00131 namespace function {
00132 
00133 template <class Owner, typename R>
00134 IxFunction_ptr bind_fct_0(const typename QxFunction_0<Owner, R>::type_fct & fct)
00135 {
00136    typedef boost::is_same<Owner, void> qx_verify_owner_tmp;
00137    BOOST_STATIC_ASSERT(qx_verify_owner_tmp::value);
00138    IxFunction_ptr ptr; ptr.reset(new QxFunction_0<void, R>(fct));
00139    return ptr;
00140 }
00141 
00142 template <class Owner, typename R>
00143 IxFunction_ptr bind_member_fct_0(const typename QxFunction_0<Owner, R>::type_fct & fct)
00144 {
00145    typedef boost::is_same<Owner, void> qx_verify_owner_tmp;
00146    BOOST_STATIC_ASSERT(! qx_verify_owner_tmp::value);
00147    IxFunction_ptr ptr; ptr.reset(new QxFunction_0<Owner, R>(fct));
00148    return ptr;
00149 }
00150 
00151 } // namespace function
00152 } // namespace qx
00153 
00154 #endif // _QX_FUNCTION_0_H_