Yeah, cross-DataMap inheritance is not supported. We probably *can* support it technically, as all DataMaps are eventually combined in a single namespace, but currently it doesn't work.
A. > On Oct 12, 2025, at 5:24 PM, Ricardo Parada <[email protected]> wrote: > > Hello, > > I have an Attachments data map that has an Attachment ObjEntity mapped to the > ATTACHMENT DbEntity. > > In a separate data map named Main, I have a ClaimAttachment ObjEntity. I > want this to be a child of the Attachment ObjEntity. > > In the Cayenne Modeler I click on the ClaimAttachment ObjEntity and in the > ObjEntity Configuration section I see an Inheritance drop down. The only > option in that drop down is "Direct Mapping to Table/View”. > > Shouldn’t this drop down list have the Attachment ObjEntity listed there? > The Attachment ObjEntity has the Abstract class check box selected. > > Thanks in advance for any help, > Ricardo Parada >
