This method triggers the internal processing.

It may be overridden if required, e.g. to implement your own action-handling. By default, the method to be called is set up out of the action-param passed. Example: The action requested is names "newPage". Therefore, the framework tries to call actionNewPage(). If no method matching the schema is found, an exception is being thrown. The actions' output is saved back to self::strOutput and, is returned in addition. Returning the content is only implemented to remain backwards compatible with older implementations. Since Kajona 4.0, the check on declarative permissions via annotations is supported. Therefore the list of permissions, named after the "permissions" annotation are validated against the module currently loaded.