I don't need synchronization, the application is a point of sale and the data stored in memory are the header and detail of the invoices (well and the discounts, customers details, products, etc, mostly all in vectors of vectors inside beans that give me a headache every time I need to find some info
), one example is the invoice itself, the header data is detailed at bean level, but the detail is a vector of vectors. I want to change it to a more object oriented app, what do you think could be a good design?
thanks