Daniel Keir Haywood created CAUSEWAY-3540:
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Summary: Mixin property annotated using @Property(projecting=...)
not picked up in the MM.
Key: CAUSEWAY-3540
URL: https://issues.apache.org/jira/browse/CAUSEWAY-3540
Project: Causeway
Issue Type: Bug
Components: Core
Affects Versions: 2.0.0-RC2
Reporter: Daniel Keir Haywood
Fix For: 2.0.0-RC4
The use case is that I had an entity (OutgoingInvoice) and also a view model
(OutgoingInvoiceView), with the view model being based on the entity but having
more information.
What I wanted to do was have a query return a list of entities (because that is
very fast, avoids the n+1 orm problem), but then when the user clicks on an
entity icon from the list, then to open up the view instead.
This works fine if I declare the "projecting" property as a regular property on
the entity:
{code:java}
@Property(projecting = Projecting.PROJECTED)
@PropertyLayout(hidden = Where.EVERYWHERE)
public OutgoingInvoiceView getView() {
return new OutgoingInvoiceView(this);
}{code}
However, this makes the entity (dom layer) aware of the view (app layer), which
I didn't much like. So I wanted instead to have a mixin in the app layer
contribute to the entity ... but it doesn't get picked up:
{code:java}
@Property(projecting = Projecting.PROJECTED)
@PropertyLayout(hidden = Where.EVERYWHERE)
@RequiredArgsConstructor
public static class view() {
private final OutgoingInvoice entity;
@MemberSupport public OutgoingInvoiceView prop() {
return new OutgoingInvoiceView(entity);
}
}{code}
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