On Mon, 21 Feb 2011 14:05:25 -0300, robnangle <robnan...@gmail.com> wrote:

I am not using tapestry-hibernate, is there any examples out there because the few I have came across seem to be very complex?

There are some examples out there that I consider the wrong approach, specifically implementing both ValueEncoder and SelectModel in the same class.

Suppose you have a class User and a DAO for it named UserDAO (not tested):

class UserValueEncoder<User>() {
        final private UserDAO dao;
        public UserValueEncoder(UserDAO dao) {
                this.dao = dao;
        }
        public String toClient(User user) {
                return user.getLogin();
        }

        public User toValue(String clientValue) {
                return dao.findByLogin(clientValue);
        }
}

@Property
private User user;

<select t:type="Select" value="user" .../>

You could use any logic for that. For example, you could use the user id instead of login and your application would behave exactly the same.

--
Thiago H. de Paula Figueiredo
Independent Java, Apache Tapestry 5 and Hibernate consultant, developer, and instructor
Owner, Ars Machina Tecnologia da Informação Ltda.
http://www.arsmachina.com.br

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