http://code.google.com/p/google-web-toolkit/wiki/DesignOOPHM gives a decent overview and specs out the wire protocol.
High level: The bootstrap page detects the ?gwt.codesvr= fragment, and tries to load the plugin. The plugin then validates the permissions. Assuming the permissions are good, it connects to the code server. The code server then does a JDT compile, runs generators, etc... Then it runs the module entry point. Any java code runs in the JVM on the code server. For any JSNI (that includes JSNI in GWT core such as the standard DOM accessors), those function calls go across the wire to the plugin where they are evaluated in the Browser's Javascript VM in the context of the application. Java objects referenced by JSNI functions get wrapped by the plugin so JS code can reference an object that lives in the JVM. One of the causes of slowness in the Chrome plugin is v8 has an identity bug with NPObjects that requires us to round trip to v8 and compare our own custom tags on every identity comparison for a Java object. This is actively being worked on and we should be able to ship a speed improvement build for recent builds of chrome shortly. On Fri, Jul 15, 2011 at 11:57 AM, dreamer <venugopal.vasire...@gmail.com>wrote: > just off topic. what is life cycle in dev mode? > > Is it java byte code all the way to browser (plug in )? (I mean no > java script any where) > > > On Jul 15, 8:24 am, Paul Robinson <ukcue...@gmail.com> wrote: > > Chrome is slow in dev mode. Try firefox instead. > > > > On 15/07/11 16:12, Dennis Haupt wrote: > > > > > > > > > > > > > > > > > switching to dev mode took 41 seconds, chrome became responsive again > about ~30 seconds after that. gut feeling wins. > > -- > You received this message because you are subscribed to the Google Groups > "Google Web Toolkit" group. > To post to this group, send email to google-web-toolkit@googlegroups.com. > To unsubscribe from this group, send email to > google-web-toolkit+unsubscr...@googlegroups.com. > For more options, visit this group at > http://groups.google.com/group/google-web-toolkit?hl=en. > > -- You received this message because you are subscribed to the Google Groups "Google Web Toolkit" group. To post to this group, send email to google-web-toolkit@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
