Andi Huber created CAUSEWAY-3585:
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Summary: [Metamodel] Allow for Types that subclass an Entity Type
to actually be a Viewmodel.
Key: CAUSEWAY-3585
URL: https://issues.apache.org/jira/browse/CAUSEWAY-3585
Project: Causeway
Issue Type: Improvement
Components: Core
Reporter: Andi Huber
Assignee: Andi Huber
Fix For: 2.0.0-RC3
For an entity relation where the looked up entity does not exist, there are 3
possible ways to handle this:
(1) fail
(2) consider the looked up entity as not strictly required to be resolvable and
render a (none) badge
(3) render a pseudo entity, that has the information, which primary or
secondary lookup key could not be resolved and perhaps render in a
different/warning color say
Re (3) such a pseudo entity needs to be bookmarkable, hence would be
appropriate to implement as viewmodel.
{code:java}
class MyEntityNotFound extends MyEntity implements ViewModel {
public MyEntityNotFound (final String memento) { setName(memento); }
@Override public String viewModelMemento() { return getName(); }
}
{code}
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