I am about to update the JDO metadata in the package.jdo files after moving from ObjectDB 1 to 2. However I found that there is no complete description or guide how the XML metadata should look in version 2. I found only small fragments of attributes in the description of JDO Annotations (to which XML element is the given annotation equivalent).
So my questions to this are:
1. Is there some description of XML metadata for ObjectDB ver2 using JDO which I did not find?
2. Is the combined usage of JDO annotation and XML metadata working or the enhancer takes exclusively either this or that ?
3. I found there is only API documentation for JDO and no manual at all as there is for JPA. Does this mean that the support of JDO in ObjectDB 2 is already in some legacy mode ? So is JPA the preferred technology above JDO ?
4. If I would decide to move to JPA from JDO, is it possible to access the same database with JPA what is using at the moment JDO ? Or should it be somehow transferred using a utility ?