OWBI1_ResultHandlerIFC.hpp

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00030 
00036 #ifndef OWBI1_RESULTHANDLERIFC_HPP_INCLUDE_GUARD_
00037 #define OWBI1_RESULTHANDLERIFC_HPP_INCLUDE_GUARD_
00038 #include "OWBI1_config.h"
00039 #include "OWBI1_CommonFwd.hpp" // for the *ResultHandler typedefs
00040 
00041 namespace OWBI1
00042 {
00043 
00044 /*
00045  * An abstract callback object to handle results from some form of operation.
00046  */
00047 template <typename T>
00048 class ResultHandlerIFC
00049 {
00050 public:
00051    /*
00052     * Handle a result.
00053     * An exception may be thrown by a derived class.
00054     *
00055     * @param x A value that needs to be handled.
00056     */
00057    void handle(const T& x)
00058    {
00059       doHandle(x);
00060    }
00061    virtual ~ResultHandlerIFC();
00062 protected:
00063    virtual void doHandle(const T& x) = 0;
00064 };
00065 template <typename T>
00066 ResultHandlerIFC<T>::~ResultHandlerIFC()
00067 {
00068 }
00069 
00070 } // end namespace OWBI1
00071 
00072 #endif

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