[JBoss Seam] - Re: Last try - Conversational Feature let me feel like an id
by maku01
"christian.bauer(a)jboss.com" wrote : ?! It's not different from any of the existing examples. You need to understand how propagation="none" and propagation="join" work, and that's it.
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In my opinion, this statement is really an oversimplification.
I tried to understand the conversation mechanisms and I'm aware that the use of a propagation="none" starts a new conversation.
But when a new conversation was created I've to manage the conversation in context.
E.g. when a menu entry for a special logical area is activated I start a new conversation (with propagation="none" and a "start" Method marked as @Begin)
On the next activations of this menu entry, a conversation is already active I've to know that a conversation is already in progress and handle this scenario appropriately
I tried to handle this by specifying a conversion id (with @Begin(id=...) or I tried to specify this conversion id in pages.xml
E.g.
<conversation name="PartnerMaintConv"
| parameter-name="cid"
| parameter-value="PartnerMaintConv"/>
and
| <page ... conversation="PartnerMaintConv" >
| </page>
|
But this works not as I expected.
When I start a new conversation with every menu click (with propagation="none") and use e.g. the Seam switcher component it seems that this works at the first sight.
So I could imagine that it would be possible to build a logic that change the behaviour of a menu entry when I conversation is already active and do something similiar like the "switcher" component.
Could this be a possible approach??
By and large I've to say that to implement this requirement for a business administration application is not easy with Seam (maybe it is when you really understand what's going on). But from the point of view of a average Seam user it is not.
When I implement this with components with "Session" state it is simple to do. I don't want to loose the Seam benefits.
But I'm already really frustrated.
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18 years, 7 months