RE: Strategy for dealing with stale sessions?

2013-05-16 Thread Ben Titmarsh
)
at org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:40)
at runjettyrun.Bootstrap.main(Bootstrap.java:121)
2013-05-16 13:32:59.609::WARN:  Error starting handlers
java.lang.UnsupportedClassVersionError: 
com/flowlogix/web/services/ServicesModule : Unsupported major.minor version 51.0
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClassCond(ClassLoader.java:631)
at java.lang.ClassLoader.defineClass(ClassLoader.java:615)
at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:141)
at java.net.URLClassLoader.defineClass(URLClassLoader.java:283)
at java.net.URLClassLoader.access$000(URLClassLoader.java:58)
at java.net.URLClassLoader$1.run(URLClassLoader.java:197)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
at 
org.mortbay.jetty.webapp.WebAppClassLoader.loadClass(WebAppClassLoader.java:366)
at 
org.mortbay.jetty.webapp.WebAppClassLoader.loadClass(WebAppClassLoader.java:337)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:247)
at org.apache.tapestry5.ioc.RegistryBuilder.add(RegistryBuilder.java:157)
at 
org.apache.tapestry5.ioc.IOCUtilities.addModulesInList(IOCUtilities.java:137)
at 
org.apache.tapestry5.ioc.IOCUtilities.addModulesInManifest(IOCUtilities.java:107)
at 
org.apache.tapestry5.ioc.IOCUtilities.addDefaultModules(IOCUtilities.java:77)
at 
org.apache.tapestry5.internal.TapestryAppInitializer.init(TapestryAppInitializer.java:124)
at org.apache.tapestry5.TapestryFilter.init(TapestryFilter.java:103)
at org.mortbay.jetty.servlet.FilterHolder.doStart(FilterHolder.java:97)
at org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:40)
at 
org.mortbay.jetty.servlet.ServletHandler.initialize(ServletHandler.java:589)
at org.mortbay.jetty.servlet.Context.startContext(Context.java:139)
at 
org.mortbay.jetty.webapp.WebAppContext.startContext(WebAppContext.java:1216)
at org.mortbay.jetty.handler.ContextHandler.doStart(ContextHandler.java:509)
at org.mortbay.jetty.webapp.WebAppContext.doStart(WebAppContext.java:447)
at org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:40)
at org.mortbay.jetty.handler.HandlerWrapper.doStart(HandlerWrapper.java:117)
at org.mortbay.jetty.Server.doStart(Server.java:222)
at org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:40)
at runjettyrun.Bootstrap.main(Bootstrap.java:121)

 CC: users@tapestry.apache.org
 From: lpri...@hope.nyc.ny.us
 Subject: Re: Strategy for dealing with stale sessions?
 Date: Mon, 13 May 2013 11:44:45 -0400
 To: users@tapestry.apache.org
 
 FlowLogix library handles this generically by reloading the page if session 
 expired. 
 Take a look specifically at @AJAX annotation. 
 
 http://code.google.com/p/flowlogix/wiki/TapestryLibrary
 http://code.google.com/p/flowlogix/wiki/TLAJAXAnnotation
 
 On May 13, 2013, at 6:24 AM, Ben Titmarsh ben.titma...@hotmail.co.uk wrote:
 
  My application is heavily dependent on state using @Persist annotations.  
  If a user gets the application into a certain state, then their session 
  becomes stale (i.e. they leave their computer for half an hour), what is 
  the preferred approach for graceful recovery of the application now that 
  the Persistent fields are null?
  
 
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 To unsubscribe, e-mail: users-unsubscr...@tapestry.apache.org
 For additional commands, e-mail: users-h...@tapestry.apache.org
 
  

Re: Strategy for dealing with stale sessions?

2013-05-16 Thread Lenny Primak
)
at 
 org.mortbay.jetty.handler.HandlerWrapper.doStart(HandlerWrapper.java:117)
at org.mortbay.jetty.Server.doStart(Server.java:222)
at org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:40)
at runjettyrun.Bootstrap.main(Bootstrap.java:121)
 2013-05-16 13:32:59.609::WARN:  Error starting handlers
 java.lang.UnsupportedClassVersionError: 
 com/flowlogix/web/services/ServicesModule : Unsupported major.minor version 
 51.0
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClassCond(ClassLoader.java:631)
at java.lang.ClassLoader.defineClass(ClassLoader.java:615)
at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:141)
at java.net.URLClassLoader.defineClass(URLClassLoader.java:283)
at java.net.URLClassLoader.access$000(URLClassLoader.java:58)
at java.net.URLClassLoader$1.run(URLClassLoader.java:197)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
at 
 org.mortbay.jetty.webapp.WebAppClassLoader.loadClass(WebAppClassLoader.java:366)
at 
 org.mortbay.jetty.webapp.WebAppClassLoader.loadClass(WebAppClassLoader.java:337)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:247)
at org.apache.tapestry5.ioc.RegistryBuilder.add(RegistryBuilder.java:157)
at 
 org.apache.tapestry5.ioc.IOCUtilities.addModulesInList(IOCUtilities.java:137)
at 
 org.apache.tapestry5.ioc.IOCUtilities.addModulesInManifest(IOCUtilities.java:107)
at 
 org.apache.tapestry5.ioc.IOCUtilities.addDefaultModules(IOCUtilities.java:77)
at 
 org.apache.tapestry5.internal.TapestryAppInitializer.init(TapestryAppInitializer.java:124)
at org.apache.tapestry5.TapestryFilter.init(TapestryFilter.java:103)
at org.mortbay.jetty.servlet.FilterHolder.doStart(FilterHolder.java:97)
at org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:40)
at 
 org.mortbay.jetty.servlet.ServletHandler.initialize(ServletHandler.java:589)
at org.mortbay.jetty.servlet.Context.startContext(Context.java:139)
at 
 org.mortbay.jetty.webapp.WebAppContext.startContext(WebAppContext.java:1216)
at 
 org.mortbay.jetty.handler.ContextHandler.doStart(ContextHandler.java:509)
at org.mortbay.jetty.webapp.WebAppContext.doStart(WebAppContext.java:447)
at org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:40)
at 
 org.mortbay.jetty.handler.HandlerWrapper.doStart(HandlerWrapper.java:117)
at org.mortbay.jetty.Server.doStart(Server.java:222)
at org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:40)
at runjettyrun.Bootstrap.main(Bootstrap.java:121)
 
 CC: users@tapestry.apache.org
 From: lpri...@hope.nyc.ny.us
 Subject: Re: Strategy for dealing with stale sessions?
 Date: Mon, 13 May 2013 11:44:45 -0400
 To: users@tapestry.apache.org
 
 FlowLogix library handles this generically by reloading the page if session 
 expired. 
 Take a look specifically at @AJAX annotation. 
 
 http://code.google.com/p/flowlogix/wiki/TapestryLibrary
 http://code.google.com/p/flowlogix/wiki/TLAJAXAnnotation
 
 On May 13, 2013, at 6:24 AM, Ben Titmarsh ben.titma...@hotmail.co.uk wrote:
 
 My application is heavily dependent on state using @Persist annotations.  
 If a user gets the application into a certain state, then their session 
 becomes stale (i.e. they leave their computer for half an hour), what is 
 the preferred approach for graceful recovery of the application now that 
 the Persistent fields are null?
 
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 To unsubscribe, e-mail: users-unsubscr...@tapestry.apache.org
 For additional commands, e-mail: users-h...@tapestry.apache.org
 

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Strategy for dealing with stale sessions?

2013-05-13 Thread Ben Titmarsh
My application is heavily dependent on state using @Persist annotations.  If a 
user gets the application into a certain state, then their session becomes 
stale (i.e. they leave their computer for half an hour), what is the preferred 
approach for graceful recovery of the application now that the Persistent 
fields are null?
  

Re: Strategy for dealing with stale sessions?

2013-05-13 Thread Michael Prescott
I think this is an application-specific question.  When the application
server's underlying session expires, all your @Persisted fields become
null, as you say.  If the user continues, it's just as if a random, unknown
user arrived and attempted to start interacting with your application
somewhere deep inside. Presumably you need to gracefully direct them to the
start of your application, where you can (potentially authenticating them
first) start setting persistent state once more.

An alternative would be for you to use a different persistence strategy
other than 'session'. The wiki has an example of a cookie-based strategy
(link below). Another option would be some sort of database storage.  You
stick a key in the session or a cookie, and this is used to look up the
rest of the state, which is stored in something more long term, like a
database.

If the session expires, then when they re-authenticate, you can associate
the new session with the key they were using last time.


On 13 May 2013 06:24, Ben Titmarsh ben.titma...@hotmail.co.uk wrote:

 My application is heavily dependent on state using @Persist annotations.
  If a user gets the application into a certain state, then their session
 becomes stale (i.e. they leave their computer for half an hour), what is
 the preferred approach for graceful recovery of the application now that
 the Persistent fields are null?



Re: Strategy for dealing with stale sessions?

2013-05-13 Thread Lenny Primak
FlowLogix library handles this generically by reloading the page if session 
expired. 
Take a look specifically at @AJAX annotation. 

http://code.google.com/p/flowlogix/wiki/TapestryLibrary
http://code.google.com/p/flowlogix/wiki/TLAJAXAnnotation

On May 13, 2013, at 6:24 AM, Ben Titmarsh ben.titma...@hotmail.co.uk wrote:

 My application is heavily dependent on state using @Persist annotations.  If 
 a user gets the application into a certain state, then their session becomes 
 stale (i.e. they leave their computer for half an hour), what is the 
 preferred approach for graceful recovery of the application now that the 
 Persistent fields are null?
 

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To unsubscribe, e-mail: users-unsubscr...@tapestry.apache.org
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RE: Strategy for dealing with stale sessions?

2013-05-13 Thread Ben Titmarsh
Lenny, George,

Thanks for the replies.  I actually left a somewhat crucial piece of 
information out of my initial post in that I am talking specifically about 
Ajax!  So Lenny this library looks fantastic, exactly what I was looking for!

 CC: users@tapestry.apache.org
 From: lpri...@hope.nyc.ny.us
 Subject: Re: Strategy for dealing with stale sessions?
 Date: Mon, 13 May 2013 11:44:45 -0400
 To: users@tapestry.apache.org
 
 FlowLogix library handles this generically by reloading the page if session 
 expired. 
 Take a look specifically at @AJAX annotation. 
 
 http://code.google.com/p/flowlogix/wiki/TapestryLibrary
 http://code.google.com/p/flowlogix/wiki/TLAJAXAnnotation
 
 On May 13, 2013, at 6:24 AM, Ben Titmarsh ben.titma...@hotmail.co.uk wrote:
 
  My application is heavily dependent on state using @Persist annotations.  
  If a user gets the application into a certain state, then their session 
  becomes stale (i.e. they leave their computer for half an hour), what is 
  the preferred approach for graceful recovery of the application now that 
  the Persistent fields are null?
  
 
 -
 To unsubscribe, e-mail: users-unsubscr...@tapestry.apache.org
 For additional commands, e-mail: users-h...@tapestry.apache.org