I was dimly aware that EJBs must have a no-arg constructor, thanks for
pointing me to it with a reference :-) [small typo, the section in the EJB
spec [1] is 4.9.2, not 3.9.2]
BUT:
1) The CDI spec [2] says at the start of section 3 that Session beans are
supported by CDI. Section 3.2 then talks at length about CDI and EJBs but
never mentions anything about constructor injection not working.
This is why I believe that is should work. Some googling turned up one or two
forum posts saying that CDI constructor injection should work for EJBs, but
nothing authoritative.
I would much appreciate an authoritative statement either way.
2) As described above in several cases constructor injection does work with
EJBs:
* with an additional no-argument constructor to GreeterEjb (I wonder what
happens internally...)
* with an Interface GreeterInterface (see code below). GreeterEjb implements
GreeterInterface. In InjectedServlet changed type of field greeterEjb from
GreeterEjb to GreeterInterface
* *new: *when in InjectedServlet @Inject is replaced with @EJB
If CDI constructor injection for EJBs were not allowed by the spec, then
these would all be (undocumented?) Glassfish extensions?
Best regards,
Arend
[1]
http://jcp.org/en/jsr/detail?id=318
[2]
http://jcp.org/en/jsr/detail?id=299
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