PageBody aboutToChange(RequestContext, PageBody)
This method is called before the service invoked in change mode.
Input
• RequestContext - contains session parameters, such as, language cd, user id and etc.
Input/Output
• PageBody - this object contains the information that is to be submitted to the underlying service.
Return value
PageBody or null - if a page body is returned, this is considered the result of the invocation and the underlying service will not be called. If null is returned, the underlying service will be invoked normally.
Throws
InteceptorError - throw this exception when an error occurs.
InterceptorWarning - throws this exception to signal an application warning