wondering why this results in a serialization exception(running it in
debugger-> com.google.gwt.dev.GWTShell)
code snippets below....
I really like just needing to deal with the onSucceded() in my
presenter code
and leaving the onfailure,lookup & invocation code in the action.
This way i can easily re-use the AddEmail
and just specialize the onSuceeded() code to update whichever display
i happen to be working on.
should this approach work?
//=========================================================
// Command pattern with some centrallized error handling
//=========================================================
public interface Response extends IsSerializable {}
public interface Action<T extends Response> extends IsSerializable {}
public abstract class BaseAction<T extends Response> implements
Action<T>,AsyncCallback<T> {
public abstract void invoke();
public abstract void onSucceded(T value);
@Override
public void onFailure(Throwable error) {
//based onExceptiontype do something(irrelevant here)
}
@Override
public void onSuccess(T value) {
try {
onSucceded(value);
} catch (RuntimeException error) {
onFailure(error);
}
}
}
public class AddEmailAction extends BaseAction<AddEmailResponse> {
private static final long serialVersionUID = 1L;
protected String email;
public AddEmailAction() {
}
public AddEmailAction(String email) {
this.email = email;
}
@Override
public void invoke() {
//note: i initialize the rpc service in the entrypoint class
EntryPoint.RPCSERVICE.execute(this, this);
}
public String getEmail() {
return email;
}
public void setEmail(String email) {
this.email = email;
}
}
//============================================
//in the presentation tier, I try to invoke it
//============================================
class XYZPresenter{
....
private void handleAddEmail(final String email){
new AddEmailAction(email){
@Override
public void onSucceded(AddEmailResponse value) {
display.addEmail(email);
}
}.invoke(); <-ends up triggering -
>com.google.gwt.user.client.rpc.SerializationException
}
}
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