> The consequence is that your enums should never ever have changing data
stored
Got it. I never modify the enum via code. That would be a bit strange.
> Maybe Line isn't the only class that is missing in the policy file?
Yes, there are others which are missing.
> As a workaround you can always add dummy methods to your GWT-RPC service,
e.g.
> Line getDummyLine(), to make a class visible to GWT
I added this method to com.propfinancing.puzzle.slitherlink.Box:
*public* Line gwtGetLine() {
*return* *new* Line();
}
And the generated .gwt.rpc has Box, but still does not have Line:
@FinalFields, true
*com*._3dmathpuzzles.play.client.GetPuzzleService, false, false, false,
false, _, 4203465842
*com*._3dmathpuzzles.slitherlink.RectangularWithDiagonalsPuzzle, true,
true, false, false,
*com*._3dmathpuzzles.slitherlink.RectangularWithDiagonalsPuzzle/2547295082,
2547295082
com.google.gwt.user.client.rpc.IncompatibleRemoteServiceException, true,
true, true, true,
com.google.gwt.user.client.rpc.IncompatibleRemoteServiceException/3936916533,
3936916533
com.google.gwt.user.client.rpc.RpcTokenException, true, true, false, false,
com.google.gwt.user.client.rpc.RpcTokenException/2345075298, 2345075298
com.google.gwt.user.client.rpc.XsrfToken, false, false, true, true,
com.google.gwt.user.client.rpc.XsrfToken/4254043109, 4254043109
com.propfinancing.puzzle.Puzzle, true, false, false, false,
com.propfinancing.puzzle.Puzzle/1723715424, 1723715424
com.propfinancing.puzzle.slitherlink.Box, true, true, false, false,
com.propfinancing.puzzle.slitherlink.Box/1302152982, 1302152982
com.propfinancing.puzzle.slitherlink.Box$STATE, true, true, false, false,
com.propfinancing.puzzle.slitherlink.Box$STATE/1639054469, 1639054469
com.propfinancing.puzzle.slitherlink.BoxWithDiagonals, true, true, false,
false, com.propfinancing.puzzle.slitherlink.BoxWithDiagonals/2774485663,
2774485663
com.propfinancing.puzzle.slitherlink.Component, true, false, false, false,
com.propfinancing.puzzle.slitherlink.Component/4011233562, 4011233562
com.propfinancing.puzzle.slitherlink.NumberedBox, true, true, false, false,
com.propfinancing.puzzle.slitherlink.NumberedBox/1782628205, 1782628205
com.propfinancing.puzzle.slitherlink.Puzzle, true, false, false, false,
com.propfinancing.puzzle.slitherlink.Puzzle/2584703185, 2584703185
com.propfinancing.puzzle.slitherlink.RectangularPuzzle, true, false, false,
false, com.propfinancing.puzzle.slitherlink.RectangularPuzzle/3177548746,
3177548746
com.propfinancing.puzzle.slitherlink.RectangularWithDiagonalsPuzzle, true,
false, false, false,
com.propfinancing.puzzle.slitherlink.RectangularWithDiagonalsPuzzle/3793384887,
3793384887
java.lang.Exception, true, false, true, false,
java.lang.Exception/1920171873, 1920171873
java.lang.RuntimeException, true, false, true, false,
java.lang.RuntimeException/515124647, 515124647
java.lang.String, true, true, true, true, java.lang.String/2004016611,
2004016611
java.lang.Throwable, true, false, true, false,
java.lang.Throwable/2953622131, 2953622131
java.util.ArrayList, true, true, false, false,
java.util.ArrayList/4159755760, 4159755760
java.util.HashMap, true, true, false, false, java.util.HashMap/1797211028,
1797211028
java.util.LinkedHashMap, true, true, false, false,
java.util.LinkedHashMap/3008245022, 3008245022
Thank you,
Neil
--
Neil Aggarwal, (972) 834-1565, http://www.propfinancing.com
We offer 30 year loans on single family houses!
*From:* [email protected] <
[email protected]> *On Behalf Of *Jens
*Sent:* Thursday, December 19, 2024 3:41 PM
*To:* GWT Users <[email protected]>
*Subject:* Re: Class not included in the set of types for RPC
Neil Aggarwal schrieb am Donnerstag, 19. Dezember 2024 um 17:12:06 UTC+1:
> Enumeration constants are serialized as a name only; none of the field
values are serialized.
What are the consequences of not having the values?
The consequence is that your enums should never ever have changing data
stored. For example MyEnum.PERSON.getFriends().add(friend) is possible in
Java but makes the enum constant mutable, which is bad. If enum constants
are immutable then serializing the name or ordinal is enough to reconstruct
the state.
> Can you confirm that the policy file does include Line
It does not have Line in it:
Does Line satisfy all rules? Default constructor, implements Serializable
and only has Serializable fields? If yes, take a look at your GWT-RPC
service method(s) declaration. Starting from the return type and the
parameter types of the GWT-RPC method(s), will Line be discoverable
directly or is it hidden behind some interface or super class or possibly
class Object and GWT would need to find all the candidates that match these
interfaces/super classes? If Line is hidden, do the interface / super class
follow the rules? Maybe Line isn't the only class that is missing in the
policy file?
As a workaround you can always add dummy methods to your GWT-RPC service,
e.g. Line getDummyLine(), to make a class visible to GWT (or a Dummy class
with a Line field and then use Dummy as return type).
-- J.
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