How to determine *at runtime* which permutation is used?

[Hilco Wijbenga]

Hi all,

It would be helpful to see which permutation is being downloaded by
the browser. Is there a way to determine *at runtime* which
permutation (or at least which browser permutation) is being used?

It would be fine if extra work is needed during the build to generate
this information. Perhaps there is some sort of trigger/event at the
start of each permutation's compilation? Any ideas?

Cheers,
Hilco

[Danny Kirchmeier]

You can use GWT.getPermutationStrongName()

You can choose to write that to the screen like so

RootPanel.get().add(new Label(GWT.getPermutationStrongName()));

[Hilco Wijbenga]

On 9 November 2011 17:37, Danny Kirchmeier <da...@kirchmeier.us> wrote:
> You can use GWT.getPermutationStrongName()

Thank you.

Unfortunately, this gives me: F0A79CA92B424357F8F0A6170AD004B9. Is
there a way to turn this into something readable?

[Paul Robinson]

You can use deferred binding for this.

<replace-with class="com.whatever.MyClassImplIE6">
<when-type-is class="com.whatever.MyClass"/>
<when-property-is name="user.agent" value="ie6" />
</replace-with>

<replace-with class="com.whatever.MyClassImplIE8">
<when-type-is class="com.whatever.MyClass"/>
<when-property-is name="user.agent" value="ie8" />
</replace-with>

etc

and then
MyClass thing = GWT.create(MyClass.class);

You can put whatever you want into MyClass, and into its subclasses so you can get whatever you need at runtime, but have the real work done at compile time.

Paul