You can provide a map to javax.persistence.Persistence#createEntityManagerFactory(String pu, Map properties); That way you can define the Driver, jdbc user + pwc, url, etc
That way you don't need anything in your persistence.xml. If you use CDI you can create a producer for it or use the one from DeltaSpike. Or you use TomEE where you can do the same. You can pass a property map to DeltaSpike CdiCtrl boot(Map): https://github.com/apache/deltaspike/blob/master/deltaspike/cdictrl/api/src/main/java/org/apache/deltaspike/cdise/api/CdiContainer.java#L58 LieGrue, strub > Am 13.02.2019 um 17:10 schrieb Francesco Chicchiriccò <ilgro...@apache.org>: > > On 13/02/19 15:04, Matthew Broadhead wrote: >> i am trying to test some business logic that depends heavily on the results >> of calls to entitymanager. i would like to keep the persistence.xml exactly >> as it is in the main project but basically load in a different database >> underneath. is there a way to initialise the entitymanager and point it to >> a development database for the duration of the tests? > > Hi Matthew, > I normally do as you require above, but with some Spring ORM support, not > sure it fits with your scenario; if so, I can point you to some working > samples. > > Regards. > > -- > Francesco Chicchiriccò > > Tirasa - Open Source Excellence > http://www.tirasa.net/ > > Member at The Apache Software Foundation > Syncope, Cocoon, Olingo, CXF, OpenJPA, PonyMail > http://home.apache.org/~ilgrosso/ >
