Edu wrote:
> I was using IsSerializable Interface until i read an article on gwt
> home page saying that i could use the java.io.Serializable interface,
> since i was using a generic servlett dispatch all my incoming
> resquest, the java.io.Serializable was much easier to use, so i
> changed all my classes that needed serialization and after that my
> services stoped working.
>
> Here's the piece of code i'm using:
>
> //Method on the servlet
> public HashMap<String, Serializable> getValue(String serviceClass,
> HashMap<String, Serializable> params)
> throws DyadException {
> try {
> Class clazz = Class.forName(serviceClass);
> DyadService classInstance =
> (DyadService)clazz.newInstance();
>
> HashMap<String, Serializable> ret =
> classInstance.getValue(params);
> //it gets here, but after then return call
> nothing happens
> return ret;
> } catch (Exception e) {
> DyadException ex = new DyadException();
> ex.setDetailedError(e.getMessage());
> throw ex;
> }
> }
>
>
I don't know what you're problem is, but your change from
IsSerializable to Serializable does have a side-effect. When GWT
compiles your code, it now has to look for all Serializable classes to
convert to javascript, in case they get used with your code (since your
API now uses Serializable). When using IsSerializable, this is less of a
problem because you will only make classes implement IsSerializable that
will really be transported to the client, but you're probably using all
sorts of Serializable classes that will never get sent to your client,
and GWT has to sort through all of them at compile time.
It's generally better to nail your GWT RPC API down to specific classes
as much as possible. This means using ArrayList instead of List or
Collection etc for anything a GWT client accesses.
Paul
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