QxOrm 1.1.8
C++ Object Relational Mapping library
QxFunction_2.h
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00001 /****************************************************************************
00002 **
00003 ** http://www.qxorm.com/
00004 ** http://sourceforge.net/projects/qxorm/
00005 ** Original file by Lionel Marty
00006 **
00007 ** This file is part of the QxOrm library
00008 **
00009 ** This software is provided 'as-is', without any express or implied
00010 ** warranty. In no event will the authors be held liable for any
00011 ** damages arising from the use of this software.
00012 **
00013 ** GNU Lesser General Public License Usage
00014 ** This file must be used under the terms of the GNU Lesser
00015 ** General Public License version 2.1 as published by the Free Software
00016 ** Foundation and appearing in the file 'license.lgpl.txt' included in the
00017 ** packaging of this file.  Please review the following information to
00018 ** ensure the GNU Lesser General Public License version 2.1 requirements
00019 ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
00020 **
00021 ** If you have questions regarding the use of this file, please contact :
00022 ** contact@qxorm.com
00023 **
00024 ****************************************************************************/
00025 
00026 #ifndef _QX_FUNCTION_2_H_
00027 #define _QX_FUNCTION_2_H_
00028 
00029 #ifdef _MSC_VER
00030 #pragma once
00031 #endif
00032 
00040 #include <QxFunction/IxFunction.h>
00041 #include <QxFunction/QxParameters.h>
00042 
00043 namespace qx {
00044 
00049 template <class Owner, typename R, typename P1, typename P2>
00050 class QxFunction_2 : public IxFunction
00051 {
00052 
00053 public:
00054 
00055    typedef boost::function<R (Owner *, P1, P2)> type_fct;
00056    typedef typename qx::trait::remove_attr<P1, false>::type type_P1;
00057    typedef typename qx::trait::remove_attr<P2, false>::type type_P2;
00058    QX_FUNCTION_CLASS_MEMBER_FCT(QxFunction_2);
00059 
00060    virtual qx_bool isValidParams(const QString & params) const          { Q_UNUSED(params); return true; }
00061    virtual qx_bool isValidParams(const type_any_params & params) const  { Q_UNUSED(params); return true; }
00062 
00063 private:
00064 
00065    template <class T, bool bReturnValue /* = false */>
00066    struct QxInvokerFct
00067    {
00068       static inline qx_bool invoke(void * pOwner, const T & params, boost::any * ret, const QxFunction_2 * pThis)
00069       {
00070          QX_FUNCTION_INVOKE_START_WITH_OWNER();
00071          QX_FUNCTION_FETCH_PARAM(type_P1, p1, get_param_1);
00072          QX_FUNCTION_FETCH_PARAM(type_P2, p2, get_param_2);
00073          try { pThis->m_fct(static_cast<Owner *>(pOwner), p1, p2); }
00074          QX_FUNCTION_CATCH_AND_RETURN_INVOKE();
00075       }
00076    };
00077 
00078    template <class T>
00079    struct QxInvokerFct<T, true>
00080    {
00081       static inline qx_bool invoke(void * pOwner, const T & params, boost::any * ret, const QxFunction_2 * pThis)
00082       {
00083          QX_FUNCTION_INVOKE_START_WITH_OWNER();
00084          QX_FUNCTION_FETCH_PARAM(type_P1, p1, get_param_1);
00085          QX_FUNCTION_FETCH_PARAM(type_P2, p2, get_param_2);
00086          try { R retTmp = pThis->m_fct(static_cast<Owner *>(pOwner), p1, p2); if (ret) { (* ret) = boost::any(retTmp); } }
00087          QX_FUNCTION_CATCH_AND_RETURN_INVOKE();
00088       }
00089    };
00090 
00091 };
00092 
00093 template <typename R, typename P1, typename P2>
00094 class QxFunction_2<void, R, P1, P2> : public IxFunction
00095 {
00096 
00097 public:
00098 
00099    typedef boost::function<R (P1, P2)> type_fct;
00100    typedef typename qx::trait::remove_attr<P1, false>::type type_P1;
00101    typedef typename qx::trait::remove_attr<P2, false>::type type_P2;
00102    QX_FUNCTION_CLASS_FCT(QxFunction_2);
00103 
00104    virtual qx_bool isValidParams(const QString & params) const          { Q_UNUSED(params); return true; }
00105    virtual qx_bool isValidParams(const type_any_params & params) const  { Q_UNUSED(params); return true; }
00106 
00107 private:
00108 
00109    template <class T, bool bReturnValue /* = false */>
00110    struct QxInvokerFct
00111    {
00112       static inline qx_bool invoke(const T & params, boost::any * ret, const QxFunction_2 * pThis)
00113       {
00114          QX_FUNCTION_INVOKE_START_WITHOUT_OWNER();
00115          QX_FUNCTION_FETCH_PARAM(type_P1, p1, get_param_1);
00116          QX_FUNCTION_FETCH_PARAM(type_P2, p2, get_param_2);
00117          try { pThis->m_fct(p1, p2); }
00118          QX_FUNCTION_CATCH_AND_RETURN_INVOKE();
00119       }
00120    };
00121 
00122    template <class T>
00123    struct QxInvokerFct<T, true>
00124    {
00125       static inline qx_bool invoke(const T & params, boost::any * ret, const QxFunction_2 * pThis)
00126       {
00127          QX_FUNCTION_INVOKE_START_WITHOUT_OWNER();
00128          QX_FUNCTION_FETCH_PARAM(type_P1, p1, get_param_1);
00129          QX_FUNCTION_FETCH_PARAM(type_P2, p2, get_param_2);
00130          try { R retTmp = pThis->m_fct(p1, p2); if (ret) { (* ret) = boost::any(retTmp); } }
00131          QX_FUNCTION_CATCH_AND_RETURN_INVOKE();
00132       }
00133    };
00134 
00135 };
00136 
00137 namespace function {
00138 
00139 template <class Owner, typename R, typename P1, typename P2>
00140 IxFunction_ptr bind_fct_2(const typename QxFunction_2<Owner, R, P1, P2>::type_fct & fct)
00141 {
00142    typedef boost::is_same<Owner, void> qx_verify_owner_tmp;
00143    BOOST_STATIC_ASSERT(qx_verify_owner_tmp::value);
00144    IxFunction_ptr ptr; ptr.reset(new QxFunction_2<void, R, P1, P2>(fct));
00145    return ptr;
00146 }
00147 
00148 template <class Owner, typename R, typename P1, typename P2>
00149 IxFunction_ptr bind_member_fct_2(const typename QxFunction_2<Owner, R, P1, P2>::type_fct & fct)
00150 {
00151    typedef boost::is_same<Owner, void> qx_verify_owner_tmp;
00152    BOOST_STATIC_ASSERT(! qx_verify_owner_tmp::value);
00153    IxFunction_ptr ptr; ptr.reset(new QxFunction_2<Owner, R, P1, P2>(fct));
00154    return ptr;
00155 }
00156 
00157 } // namespace function
00158 } // namespace qx
00159 
00160 #endif // _QX_FUNCTION_2_H_
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