Re: Form factor support using GIN

Thank you for this example, it was quite helpful! 

One small correction, the form factor specific Ginjectors should extend the MyGinjector interface as follows:

@GinModules(SharedGinModule.class, DesktopGinModule.class)

interface DesktopGinjector extends MyGinjector {

   // nothing special here; it's only used for the @GinModules annotation

}

@GinModules(SharedGinModule.class, TabletGinModule.class)

interface TabletGinjector extends MyGinjector { }

@GinModules(SharedGinModule.class, PhoneGinModule.class)

interface PhoneGinjector extends MyGinjector { }

On Sunday, 6 November 2011 09:58:07 UTC-5, Thomas Broyer wrote:

Deferred binding only occurs when you use GWT.create(). If you "new ViewFactory()", there's no reason you'll be given a TableViewFactory. GWT doesn't change Java's semantics.

What you have to do is to use a distinct Ginjector depending on the form factor, and you can re-use the same GinModule(s) for all the shared binding configurations, and add a specific GinModule per form factor. Unfortunately, you cannot use both a generate-with (GIN's Ginjector) and replace-with (chose the right Ginjector depending on form factor), so you'll have to use a replace-with rule on a "provider class" for you Ginjector:

interface MyGinjector extends Ginjector {

   // all your accessors

}

@GinModules(SharedGinModule.class, DesktopGinModule.class)

interface DesktopGinjector extends Ginjector {

   // nothing special here; it's only used for the @GinModules annotation

}

@GinModules(SharedGinModule.class, TabletGinModule.class)

interface TabletGinjector extends Ginjector { }

@GinModules(SharedGinModule.class, PhoneGinModule.class)

interface PhoneGinjector extends Ginjector { }

interface GinjectorProvider {

   MyGinjector get();

}

class DesktopGinjectorProvider implements GinjectorProvider {

   public MyGinjector get() { return GWT.create(DesktopGinjector.class); }

}

class TabletGinjectorProvider implements GinjectorProvider {

   public MyGinjector get() { return GWT.create(TabletGinjector.class); }

}

class PhoneGinjectorProvider implements GinjectorProvider {

   public MyGinjector get() { return GWT.create(PhoneGinjector.class); }

}

<replace-with class="...DesktopGinjectorProvider">

   <when-type-is class="...GinjectorProvider" />

   <when-property-is name="formfactor" value="desktop" />

</replace-with>

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