[weld-issues] [JBoss JIRA] Commented: (WELD-549) Conversation propagated by default with h:link

David Beaumont (JIRA) jira-events at lists.jboss.org
Wed Jun 9 06:10:38 EDT 2010

    [ https://jira.jboss.org/browse/WELD-549?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12534689#action_12534689 ] 

David Beaumont commented on WELD-549:

Isn't the point of the h:link tag to enhance bookmarkability, so you can share links make your site easier for spiders etc. If the default is to propagate the conversation you have at best created yourself a memory leak and bugs from conflicting state. At worst you will start writing your application around this propagation and will have lost all the benefits of the new tag anyway and make a poor web site for your users.

Whilst understanding you are the JSF experts not me, I really think the default should be not to propagate. 

> Conversation propagated by default with h:link
> ----------------------------------------------
>                 Key: WELD-549
>                 URL: https://jira.jboss.org/browse/WELD-549
>             Project: Weld
>          Issue Type: Bug
>          Components: Web Tier integration (JSF, JSP, EL and Servlet) 
>    Affects Versions: 1.0.1.Final
>         Environment: GlassFish Server Open Source Edition 3.0.1 on Mac OS 10.6 and Windows 7. WELD-000900 1.0.1 (SP2)
>            Reporter: David Beaumont
>            Assignee: Nicklas Karlsson
>             Fix For: 1.0.2.CR1
>         Attachments: CdiConvoBug.war
> I created a long running conversation by running a method on a conversation scoped bean:
> private boolean initialized;
> public void init() {
> 	if(initialized) return;
> 	conversation.begin();
> 	initialized = true;
> }
> From a facelets page using the JSF2 event system:
> <f:metadata>
> 	<f:event type="preRenderView" listener="#{convoBean.init}" />
> </f:metadata>
> If a conversation has been made long-running, the h:link tag will produce links with the conversation query parameter, thereby propagating the conversation whether that was what you wanted or not.
> I.e:
> <p>Link: <h:link outcome="page2.xhtml" value="a link" /></p>
> produces
> <p>Link: <a href="/CdiConvoBug/page2.jsf?cid=3">a link</a></p>

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