Question

I’ve got one class which is used in both server and client side.
How can I do checking in its constructor that it has been called either from client or server class?

I’ve done it in dirty way – just try if GWT.create() method throws an exception an if it does, run server side code. But how can I avoid this?

    public PrintManager() {
    try {
        factory = GWT.create(MapConfigFactory.class);   //clientsiede factory creation
    } catch (Exception ex) {
        factory = AutoBeanFactorySource.create(MapConfigFactory.class); //serverside factory creator
    }
}

Answer 1

com.google.gwt.core.client.GWT.isScript() returns true when the code is running as JavaScript on the client.

com.google.gwt.core.client.GWT.isClient() returns false when the code is running on the server JVM (shared code).