hello guys!
I am developing a project JSE with Hibernate, JPA and Guice to inject
dependencies and part of persistence.
But I think there's something wrong with my architecture ... I have the
following scenario:
I have a bean that maps the database and has the attributes of the person
(for example) to access the data of this person have a DAO composed by
interface where I keep the access methods and the implementation of this
interface where actually writes that these methods will do. All DAOs extend
an abstract DAO that has entitymanager.
To use DAO created a controller that receives via @inject the DAO
implementation class to be controlled.
however every time you need to use the controller have to get a new
injector instantiating and initializing the PersistentService
eg
when I want to use the controller:
*PersonController controller = PersonController.getInstance();*
the getInstance() method run:
*Injector injector = Guice.createInjector(new
JpaPersistModule("MyBudgetPU"));*
* *
*injector.getInstance(PersistenceInitializer.class);*
* *
*return injector.getInstance(PersonController.class);*
where the line "injector.getInstance (PersistenceInitializer.class)" I
initialize the PersistentService with the class:
*public class PersistenceInitializer {*
*
*
* @Inject*
* public PersistenceInitializer(PersistService persistService) {*
* persistService.start();*
* }*
* }*
Finally, my question is if you really need to be doing this every time you
have to use a controller or is there a way I can make just one time and all
the controller's having their members injected, or at least maintain the
service of persistence started without keep starting him every time.
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