I have two questions about JDO: 1) I have constaints created in my tables to restrict the values that go into the fields. For example, I made a "boolean" value in MySQL to be a tiny int that can only have the values 0 or 1. Does the JDO spec take that into consideration when an existing database is being reversed engineered? Along the same lines, if I have an index that forces uniqueness to the values in a field, does the JDO use that information? 2) How well are composite primary keys handled in JDO. I have a number of tables (especially intersection tables) whose primary keys are a combination of several foreign keys. Thank you, David
posted 13 years ago
The JDO specification leaves mapping issues to the implementations. That would imply that you should be asking whether some-specific-product takes composed primary keys into consideration (instead of "whether the JDO specification...").