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SpringFramework & RAP [message #549989]

Wed, 28 July 2010 16:28

Jesus Luna Quiroga

Messages: 67
Registered: July 2009
Location: Mexico

Member

Hi,

I have a RCP application I would like to port to RAP.
This application uses SpringFramework for IoC and initialization purposes and communicates with an application server via sockets,
I have wrapped this layer in some plugins.

In RCP works as follows, when the application starts, it instantiates the IoC so that every required class get their values, then it connects via sockets to application server. The application server sends back an ip/port so that the application connects to it.

I put this communication layer in a RAP application, but since in RAP there is only one instance of the application running, it works fine for only one client, but when I try to run another client it tries to use the same instance of the communication layer plugins and doesn't initialize them again creating errors.

Can you help me with this?

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Re: SpringFramework & RAP [message #550070 is a reply to message #549989]

Thu, 29 July 2010 03:19

Yury Mising name

Messages: 95
Registered: May 2010
Location: Russia

Member

Hi, Jesus Luna Quiroga.
I guess the session singleton is that you need http://wiki.eclipse.org/RAP/FAQ#What_is_a_Session_Singleton_ and_how_can_I_implement_one.3F.

Yury.

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Re: SpringFramework & RAP [message #550097 is a reply to message #549989]

Thu, 29 July 2010 07:10

Stefan

Messages: 316
Registered: July 2009

Senior Member

Hi,

I think there are at least two issues:

1. Application start
In RCP you probably use the BundleActivator, in RAP you should use your
IEntryPoint implementation to initialize each session.

2. Bean scope
By default, Spring beans are singletons which is fine for your RCP app
but might not be what you want in RAP. You could either try to switch to
"Prototype" or provide your own "session" scope that stores the beans in
a RAP session.

Regards,
Stefan.

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Re: SpringFramework & RAP [message #550352 is a reply to message #550097]

Fri, 30 July 2010 04:00

Elias Volanakis

Messages: 43
Registered: July 2009

Member

@Stefan: FYI IEntryPoint is no longer needed. Since RAP 1.3 you can also
start from a regular RCP IApplication. Just enter the application id
instead of the entry point id in the launcher. This should be executed
once for each session.

Kind regards,
Elias.

On 7/29/2010 00:10, Stefan Roeck wrote:
> Hi,
>
> I think there are at least two issues:
>
> 1. Application start
> In RCP you probably use the BundleActivator, in RAP you should use your
> IEntryPoint implementation to initialize each session.
>
> 2. Bean scope
> By default, Spring beans are singletons which is fine for your RCP app
> but might not be what you want in RAP. You could either try to switch to
> "Prototype" or provide your own "session" scope that stores the beans in
> a RAP session.
>
> Regards,
> Stefan.

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Re: SpringFramework & RAP [message #550370 is a reply to message #550352]

Fri, 30 July 2010 06:45

Stefan

Messages: 316
Registered: July 2009

Senior Member

Elias, thanks for the clarification. What I wanted to says is that using
the BundleActivator may not be a good idea.

Regards,
Stefan.

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Re: SpringFramework & RAP [message #554758 is a reply to message #550097]

Tue, 24 August 2010 11:06

Stefan Hansel

Messages: 103
Registered: July 2009

Senior Member

Some time ago (might be a year or more
already *duh*) I wrote how we integrated Spring with RAP, using session+request-scoped
beans like in typical Spring-Web-Applications.
 Search this newsgroup for Spring I guess
to find the topics.
 
 Regards
 Stefan

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