Logi JReport Designer provides three Exit functions: After Init Parameter, After Run and Before Run. These functions enable you to develop an action to be called before, during and after the process of running a report. A status will then be returned. If the returned status is true, Logi JReport Engine will go on running. If false, Logi JReport Engine will stop at this point.
For detailed information about the functions, refer to Exit Functions in the Logi JReport Designer User's Guide.