How to expose a method using GSon?

Question

Using Play Framework, I serialize my models via GSON. I specify which fields are exposed and which aren't.

This works great but I'd also like to @expose method too. Of course, this is too simple.

How can I do it ?

Thanks for your help !

public class Account extends Model {     @Expose     public String username;      @Expose     public String email;      public String password;      @Expose // Of course, this don't work     public String getEncodedPassword() {         // ...     } } 

Answer 1

The best solution I came with this problem was to make a dedicated serializer :

public class AccountSerializer implements JsonSerializer<Account> {      @Override     public JsonElement serialize(Account account, Type type, JsonSerializationContext context) {         JsonObject root = new JsonObject();         root.addProperty("id", account.id);         root.addProperty("email", account.email);         root.addProperty("encodedPassword", account.getEncodedPassword());          return root;     }  } 

And to use it like this in my view:

GsonBuilder gson = new GsonBuilder(); gson.registerTypeAdapter(Account.class, new AccountSerializer()); Gson parser = gson.create(); renderJSON(parser.toJson(json)); 

But having @Expose working for a method would be great: it would avoid making a serializer just for showing methods!