I for one don't want to write any more xml in my life than I have to. I
prefer my history service written in Java with auto completion, etc...
that's why I use Guice over other DI frameworks. I think your argument is
for declarative history service, which I could get behind. But the
particular xml implementation of it, yuck.
On Thu, Jun 3, 2010 at 07:06, Nathan Wells <nwwe...@gmail.com> wrote:
> I would suggest watching Ray Ryan's videos on architecture from Google
> I/O 2009 and 2010. That couple of hours will help you understand how
> to solve a lot of your architecture/design problems.
>
> On Jun 3, 4:22 am, ping2ravi <ping2r...@gmail.com> wrote:
> > This post i am not asking a problem but suggesting a feature request
> > for GWT.
> > ========================================================
> >
> > Now history stuff is working well, except few things(Basic GWT issue/
> > feature, because of its nature of converting java into javascript at
> > the time of compilation and the classes it supports in .client
> > packages).
> >
> > I have declared the ValueChangeHandler but then in that code i need to
> > check one or more particular param, lets say page and then i write
> > 5-10 if then else statement to call my proper handlers.
> >
> > say if page=main, then call com.my.MainPanel.loadFromHistory(params)
> > say if page=editData1, then call
> > com.my.EditData1Panel.loadFromHistory(params)
> > say if page=editData2, then call
> > com.my.EditData2Panel.loadFromHistory(params)
> > say if page=showData1, then call
> > com.my.ShowData1Panel.loadFromHistory(params)
> > say if page=showData2, then call
> > com.my.ShowData2Panel.loadFromHistory(params)
> > etc etc
> >
> > In Spring/MVC architect we have seen that we don't need to write such
> > ifs as DispatchServlet can read our xml and call our handlers
> > depending on xml content(url-handler mappings). In Spring it was
> > implemented using Reflection which cant be used in GWT as there are no
> > JAVA classes at run time, its all javascript. Understandable.No
> > argument over it but its still solvable.
> >
> > We should not forget the javascript is loosely coupled language and
> > implementing such things(Reflection) should not be a big
> > hassle.Reflection makes Java loosely coupled at compile time(ofcourse
> > wrong types will create problem at runtime)
> >
> > Solution :
> >
> > We already have UIBinders where GWT compiler reads the xml and
> > generate proper java script. Why cant we have something like for
> > History(say HistoryBinder.xml) and i should be able to define some xml
> > like
> > <HistoryMapping>
> > <HandlerMapping>
> > <param name="page" value="main">
> > <handler value="com.my.MainPanel" />
> > </HandlerMapping>
> > </HistoryMapping>
> >
> > And all handlers can implement a Interface like
> > public interface HistoryHandler{
> > public handleHsitory(Map<String,String> params, any other param which
> > is required)
> >
> > }
> >
> > and at compile time, compiler will check each class mentioned in this
> > xml and generate error if anything wrong with class else generate the
> > proper code behind the scene as lots of If then else(Compiler writers
> > cant use Reflection for generated scriptts too :) )
> >
> > and then GWT can call our proper handler whenever history event occurs
> > and we will never have to implement ValueChangeHandler.And GWT will
> > also take care of converting our history tokens into proper hashmap
> > like structure or any other key-value pair structure.
> >
> > This will make code writing much easier, more understandable, makes
> > Developer's life bit easier. And i am sure it will add value to GWT.
> >
> > Thanks,
> > Ravi
> >
> > On Jun 2, 8:13 pm, Frederic Conrotte <frederic.conro...@gmail.com>
> > wrote:
> >
> >
> >
> > > Hello
> >
> > > You should check this book:http://apress.com/book/view/9781590599853
> >
> > > And the associated website:http://code.google.com/p/tocollege-net/
> >
> > > It mix both HTML/Freemarker templates with GWT modules.
> >
> > > Fred
> >
> > > On 1 juin, 18:02, ping2ravi <ping2r...@gmail.com> wrote:
> >
> > > > Hi All,
> > > > I am trying to create a website and stuck with confusion over whether
> > > > to use GWT for presentation or JSP based framework like Spring MVC. I
> > > > want UI to be very user friendly,faster etc and this is possible with
> > > > GWT. But following problem comes with GWT
> >
> > > > 1) Book marking of any page. As GWT is suppose to be one url
> > > > application and everything should come under it. But how i will solve
> > > > the problem if i have a site like Facebook, where url can be for User
> > > > profile(/profile/1), My Home(/home), community(/cpmm),video(/video)
> > > > etc. I can solve it by using one html and keeping everything as
> > > > params(i.e. /myapp.htm?type=profile&id=1) but then i feel its not how
> > > > GWT should be used or is this the only way i will be able to use it.
> >
> > > > 2) Not searchable by Search Engines. Search engine can not see what
> > > > the content is as it always comes through RPC calls.
> >
> > > > 3) Implementing History is Overhead, if i fix the issue 1
> >
> > > > 4) Its not possibkle to mix jsps and GWT. I tried but GWT css start
> > > > interfaring with my CSS, first starting with changing background
> > > > color.
> >
> > > > But i still like GWT but not sure how i will solve these problems.
> >
> > > > Any suggestions/comments most welcome.
> >
> > > > Thanks,
> > > > Ravi
>
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