[JBossCache] - JBossCache as a message oriented middleware?
by glozikz
Hello,
We are working on a distributed Java-based application where processes running in different JVMs need to carry out certain tasks as a response to certain events. One design option is to use a message oriented middleware where processes can publish events and subscribers can choose to listen to them and execute the appropriate actions.
We were thinking about JBossCache instead of a MOM, where the publisher can just change a shared data structure, which is replicated to other processes, and the other processes can choose to listen for changes in the data structure. My question is whether any other JBossCache users can see any problems with this design approach. E.g. not all processes will be interested in all the shared data structures, is it possible for a process to select for which data structures they receive updates to minimise network traffic/memory resource usage? (like subscribing to a topic in a MOM)
Any comments appreciated.
Regards,
Zoltan
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18 years, 1 month
[JBoss Seam] - Icefaces, pageflows and redirect
by evdelst
Hi,
I am trying to use Icefaces in an existing (working) application using facelets and pageflows. I used jars and examples from the Seam-1.1.0-CR2 release.
After modifying all configuration files (web.xml, faces-config.xml etc., icesfaces-facelets.jar instead of facelets.jar) the pageflow doesn't work anymore (keeps redisplaying the same page).
Part of my pageflow:
| <page name="selectOrganisaton" view-id="/aw/selectOrg.xhtml">
| <redirect/>
| <transition ....> etc.
|
Removing the redirect solves the problem (but offcourse without a redirect)
Another (unrelated?) issue is that I am trying to replicate the 'autoComplete' example from Icefaces in a seam application. After the first letter I type, the valuechangeListener is executed, but the page shows a message that the session is lost.
Has anyone used Icefaces in combination with pageflows?
Edwin van der Elst
Finalist IT Group
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18 years, 1 month
[JBoss Seam] - Re: RuntimeException when deploying
by dilator
Have you checked your JNDI pattern in the seam configuration?
in WEB-INF/components.xml you should have something like this:
| <component name="org.jboss.seam.core.init">
| <property name="debug">true</property>
| <property name="myFacesLifecycleBug">true</property>
| <property name="jndiPattern">easyCV/#{ejbName}/local</property>
| </component>
|
make sure the prefix is the name of your .EAR file.
Alternatively you might have set these parameters in web.xml or seam.properties
To your second question, as I understand it - you only need to annotate components with @Name when you need to reference them - if you only ever access that class via your component, there's no need to. As for interfaces, if your components are EJBs then yes, otherwise not necessarily.
Hope that helps
Ben
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18 years, 1 month