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POPlay! 2.1-RC2 JavaForms validate() without static references
 

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    <p>I've been going through the Play! 2.1 example to setup a basic login system following the ZenTasks example. Where I get stuck is the JavaForms part. I want to validate the login request using an instance of an auth service that is provided via Guice DI.</p> <p>I'm following <a href="https://github.com/playframework/Play20/blob/master/samples/java/zentasks/app/controllers/Application.java#L19" rel="nofollow">Play20 Sample</a>. This example uses a static <code>authenticate()</code> method to run the authentication when form validation is requested after form submission. Any thoughts on how to perform this validation step in a non-static scope?</p> <p>Note: I have looked at the Play! Authenticate plugin as well as the SecureSocial plugin, however those projects are overkill for what I want to do right now. Also, I am interested in a general solution for allowing non-static validation in JavaForms.</p> <p><strong>Edit:</strong> It seems there is some confusion about what I am asking for here. What I am hoping to find is an alternate way to perform the validation step of the form submission that is sent by a Play! framework Form.form() generated form. Currently it requires that a validate() method be called on an instance of a POJO which is not created through the DI framework. This results in static references being required to access authorization services etc...</p> <p><strong>Edit 2:</strong> The current solution I am working with is this:</p> <pre><code>public static class AuthServiceFormReference { @Inject public static Provider&lt;AuthService&gt; authService; } // In my auth module configure() //... requestStaticInjection(AuthController.AuthServiceFormReference.class); //... public static class Login { @Required public String email; @Required public String password; public String validate(){ if(AuthServiceFormReference.authService.get().authenticateAdmin(email, password) == null) { return "Invalid user or password"; } return null; } } </code></pre> <p>It's an okay workaround, but it still relies on static injection :(</p>
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