*With lcds:*
Allows a your application to directly invoke methods(remote objects) on Java
classes residing on the application server

*Without lcds:*

   - You may read XML directly from the server via HTTP Service
   - Your application can invoke directly to server side webservices using
   SOAP.

I hope, this will clear your doubts.

Thanks,
Renu

On Sun, Aug 23, 2009 at 8:12 PM, chandra <[email protected]> wrote:

>
>
> Hi Renu,
>
>
> Thanks for the information.
>
>  One small question what makes the difference while developing the
> flex application with LCDS and without LCDS.
>
>
> regards,
> Sreeram.
>
>
> On Aug 19, 10:59 am, Renu <[email protected]> wrote:
> > When developing a rich Internet application, one investment in
> server-side
> > infrastructure.
> >
> > One luxury of rich Internet application development is the seamless means
> by
> > which server integration now challenge is deciding which functionality
> the
> > application can and should execute on the client, and which functionality
> > should reside on a server. In evaluating these tradeoffs, you might take
> > into account issues such as performance, scalability, and security. In
> other
> > cases the decision may simply be dictated by the desire to provide a rich
> > user experience based on an existing occurs. With a web application, a
> > request to the server for data typically results in a page refresh for
> the
> > user. With an RIA, however, the user is oblivious to the distinction
> between
> > client-side and server-side processing. Requests for data do not
> interrupt
> > the flow of control; instead, data requests are made asynchronously and
> the
> > application is notified when these results become available.
> >
> > There are a number of mechanisms available for integrating a Flex RIA
> with
> > server-side data. Flex data access components use remote procedure calls
> > (RPCs) to interact with server environments. There are three Flex data
> > access components:
> >
> > *HTTPService*: Passes textual data over HTTP. This is often used to fetch
> > RSS feeds, read XML generated by a server, or simply pass text-based data
> > from server to client. (without LCDS)
> >
> > *WebService*: Allows a Flex application to invoke server-side web
> services
> > using SOAP and handle the results of web service calls. These web
> services
> > may reside on the server that has served the rich Internet application or
> > may call third-party web services through a proxy on the server. (without
> > LCDS)
> > *RemoteObject*: Allows a Flex application to directly invoke methods on
> Java
> > classes residing on the application server that has served the RIA. Data
> is
> > transferred in binary format (Adobe Action Message Format or AMF) over
> HTTP
> > or HTTPS, with the server translating Java and ActionScript objects as
> they
> > pass over the wire. (achieved through LCDS/  blazeDs etc)
> > Thanks,
> > Renu
> >
> > On Wed, Aug 19, 2009 at 9:57 PM, mahesh bab <[email protected]
> >wrote:
> >
> >
> >
> > > In order to communicate with servlets,Jsps and remote objects those r
> > > available in server side components
> >
> > > Regards
> > > D.Mahesh Babu
> >
> > >   On Wed, Aug 19, 2009 at 7:52 AM, chandu <[email protected]
> >wrote:
> >
> > >> Hi Friends,
> >
> > >>    I am new to flex and presently started working on LCDS ,i have
> > >> small question and need clarification,
> >
> > >> a) what is the difference between Flex application using LiveCycle
> > >> DataServices and flex application without using Live Cycle Data
> > >> Services .
> >
> > >> b) what is the basic purpose for LCDS in Flex Application.
> >
> > >> Kindly clarify my doubt and so please explain when we go for with or
> > >> without LCDS.
> >
> > >> waiting for reply..
> >
> > >> Regards,
> > >> Chandu.- Hide quoted text -
> >
> > - Show quoted text -
>
> >
>


-- 
Thanks,
Renu

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