anonymous wrote : First problem can be solved by passing the id as a request 
parameter instead of blindly using @DataModelSelection. 

So I wouldn't use @DataModelSelection at all? How would the appropriate value 
get injected into the entity representing the selected row using a request 
parameter?

@DataModelSelection
  | @Out(required=false)
  | private MyEntity mySelectedEntity;
  | 
  | ...
  | 
  | public void removeMyEntity() {
  |       em.remove(mySelectedEntity);
  | }

How would I change the above to use request parameters by using pages.xml or 
alternatively @RequestParameter?

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