Dynamic tool tip generator - Jfreechart

Question

I am generating a dynamic chart (XYLineChart) using jFreeChart and I have a field which is not included in the dataset. The field is generated dynamically. I want to include

Answer 1

The name to be displayed is not included anywhere in the dataset.

As shown here for a custom XYItemLabelGenerator, you can extend a suitable dataset, e.g. AbstractXYDataset, to include the required information and access it from your implementation of XYToolTipGenerator.