| Basic invoker for a remote Stateless Session Bean.
"Creates" a new EJB instance for each invocation.
See
org.springframework.jndi.JndiObjectLocator for info on
how to specify the JNDI location of the target EJB.
In a bean container, this class is normally best used as a singleton. However,
if that bean container pre-instantiates singletons (as do the XML ApplicationContext
variants) you may have a problem if the bean container is loaded before the EJB
container loads the target EJB. That is because by default the JNDI lookup will be
performed in the init method of this class and cached, but the EJB will not have been
bound at the target location yet. The best solution is to set the lookupHomeOnStartup
property to false, in which case the home will be fetched on first access to the EJB.
(This flag is only true by default for backwards compatibility reasons).
This invoker is typically used with an RMI business interface, which serves
as super-interface of the EJB component interface. Alternatively, this invoker
can also proxy a remote SLSB with a matching non-RMI business interface, i.e. an
interface that mirrors the EJB business methods but does not declare RemoteExceptions.
In the latter case, RemoteExceptions thrown by the EJB stub will automatically get
converted to Spring's unchecked RemoteAccessException.
author:
Rod Johnson
author:
Juergen Hoeller
since:
09.05.2003
See Also: org.springframework.remoting.RemoteAccessException
See Also: AbstractSlsbInvokerInterceptor.setLookupHomeOnStartup
See Also: AbstractSlsbInvokerInterceptor.setCacheHome
See Also: AbstractRemoteSlsbInvokerInterceptor.setRefreshHomeOnConnectFailure | 