PageBody aboutToRead(RequestContext, PageHeader)
This method is called before a service retrieves information.
Input
• RequestContext - contains session parameters, such as, language cd, user id and etc.
Input/Output
• PageHeader - The data describing the information that should be read.
• Return value
PageBody or null - If a page body is returned, this is considered the result of the service and underlying will not be invoked. If null is returned, the underlying service will be invoked normally.
Throws
InterceptorError - throw this exception when an error occurs.
InterceptorWarning - throws this exception to signal an application warning