Unable to register GoogleGroupPartRepository

[dmytro-grankin]

Now, when a GoogleGroupPartRepository is registered in a bounded context, the following exception is thrown:

java.lang.IllegalStateException: Aggregates of the repository io.spine.users.google.c.group.GoogleGroupPartRepository neither handle commands nor react on events.

The aggregate part only imports events. Probably, the design of the part should be changed.

[alexander-yevsyukov]

It's probably the bug in the repository registration code. If a repo only imports events, that's probably OK. It's not a usual case, but not necessarily a design flaw.

[dmytro-grankin]

An aggregate, which only imports events looks like a projection. What's the reason to keep it as an aggregate instead of turning into a projection?

In this particular case, GoogleGroupPart applies external events related to a Google Group and mirrors the data about a Google Group in its state. Again, looks like it should be a projection.