[weld-issues] [JBoss JIRA] Commented: (WELD-549) Conversation propagated by default with h:link
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https://jira.jboss.org/browse/WELD-549?page=com.atlassian.jira.plugin.sys...
]
Marcel Kolsteren commented on WELD-549:
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Some more analysis. The JSF 2.0 version of the ViewHandler class has two new methods for
generating bookmarkable and redirect URLs, which are not in JSF 1.2. In JSF 2.0, the four
cases of my previous post map to the following ViewHandler methods:
1. getActionURL
2. getBookmarkableURL
3. getActionURL
4. getRedirectURL
Remark that in Mojorra's view handler implementation (MultiViewHandler), both
getBookmarkableURL and getRedirectURL call getActionURL on the installed view handler.
That's why Dan could cover all four cases, by only overriding the getActionURL method
(I hope this is portable to other JSF implementations).
How to prevent that getBookmarkableURL adds the cid parameter? I think that a solution
would be to change ConversationAwareViewHandler so that it not only overrides
getActionURL, but also getBookmarkableURL. The ConversationAwareViewHandler could be a
copy of MultiViewHandler.getBookmarkableURL, where getActionURL is called on the delegate
instead of on the installed view handler.
Unfortunately, there is a difficulty: the Weld core is built against the JSF 1.2 API,
which doesn't contain the getBookmarkableURL method, so how to override it?
Conversation propagated by default with h:link
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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
Priority: Critical
Fix For: 1.1.0.Beta2
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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