[TYPO3-50-general] FLOW3 Sample Blog Application Aggregate Roots Clarification

[Duo Zheng]

In the Blog Application, Blog, and Post are Aggregate Roots as they  
both have Repositories. I believe I am modeling this wrong, but is it  
correct to have Post as an Aggregate Root when Blog already is?

When a Blog is deleted all its entities are deleted with it. You can't  
have a Post without a Blog so it "seems" correct for Blog to be the  
only Aggregate Root and post to be part of that Aggregate.

I guess to clearly ask the question and getting straight to the point,  
can you have Post be an Aggregate Root by itself in one case and just  
an Entity in another?

Thanks in advance,
Duo