POJO data source refresh

Is it possible to refresh the data source from a POJO in Eclipse. I have created some reports using POJO's as the data source. I have had to make some changes to the POJO's (added some new fields) that need to be displayed in the reports. I can't seem to be able to refresh the data source in Eclipse to show the added fields.

It will be a huge waste of time if I have to delete the original data source, just to add it again so the changes will be there.