DynamicJasper (DJ) is an API that hides the complexity of Jasper
Reports, it helps developers to save time when designing
simple/medium complexity reports generating the layout of the
report elements automatically. It creates reports dynamically,
defining at runtime the columns, column width (auto width), groups,
variables, fonts, charts, crosstabs, sub reports (that can also be dynamic), page size
and everything else that you can define at design time.