Here's an example where a viewmodel uses a database view: https://github.com/estatio/estatio/blob/master/estatioapp/dom/src/main/java/org/estatio/dom/invoice/viewmodel/InvoiceSummaryForInvoiceRun.java
On 5 November 2015 at 17:42, Dan Haywood <d...@haywood-associates.co.uk> wrote: > It is possible to map java domain classes to views instead of tables. > > Estatio has a couple of examples... perhaps Jeroen could dig out a link for > you (I'm typing this on my phone). > > Alternatively, yes, you could use view models. These then programmatically > combine the data. > > On your particular use case I would inject the repositories for the > "backing entities". > > One point to beat in mind is that Isis will handle view models with > collections, it only serializes the state of the view model's properties > (the determine the url of the view model). The workaround is to make the > collection derived, using @Collection(notPersisted=true), and return is > results by requerying the appropriate repository. > > Again, Estatio has some examples, I think > > Hth > Dan. > On 5 Nov 2015 15:16, "Cesar Lugo" <cesar.l...@sisorg.com.mx> wrote: > > > Hello. I have the need to create some objects that are compound from some > > other domain objects (similar to a "view" in a relational database, > > updatable views). Let's say I have Business with businessId and name > > properties, 1:n to another entity named BusinessLocation with properties > > businessLocationId and name and address properties (to keep things simple > > for now). So, for example, I need to create a new object that is > > BuisinessLocationView, which contains BuinessLocation.id, > > BusinessLocation.name, Business.id and Buiness.name . Then, in some > cases, > > I > > want to use such views like BusinessLocationView as a collection within > > Business, and as a standalone collection, and also have the ability to > > update its fields so the corresponding entities are updated with the > > changes > > (Business and BusinessLocation), and in some cases even add a new view > like > > BusinessLocationView so it adds a new BusinessLocation. > > > > > > > > Is there a way to do this? Is that what @ViewModel is for? > > > > > > > > I would appreciate If you could point me to any sample that might help. > > > > > > > > Cesar. > > > > > > > > > > > > > > > > --- > > This email has been checked for viruses by Avast antivirus software. > > https://www.avast.com/antivirus > > >
