...
A report model is a system of report elements and their behaviour. JFreeReport offers a general framework for implementing report models. A report model has to cope with two general tasks: (1) To process the report structure and (2) to update or process the data for the report. There are only a limited number of operations one can do to the data-set. As this data processing can be broken down into relatively fixed tasks, the engine provides a fine grained library of functions which should cover all current and future needs of data processing.
Elements of the flow model
...