I am trying to develop a small module that allows a user to connect to a application. I'm using the architecture mvp proposed by GWT.So, I develope the view, the present, the sychrones and asychcrones services and of course the implementation of the server that makes access to the database through hibernate.I have a little problem is how can I incorporate the concept of DAO layer?
If you know what the DAO pattern is about then you should be able to just implement it. Otherwise read up what the DAO pattern is and why people use it. Then search for examples if you still need inspiration. There are a ton of examples on the internet. It is basically a class + interface having methods that do the actual database work. These methods are typically things like DAO.findById(id), DAO.findPersonsOlderThan(age), etc.
my service contains a method called GetUser (username, password) and I made its implementation in the server side but it does not really DAO is it?
If your server implementation directly executes a query then it is not in the spirit of the DAO pattern.
-- J.
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