conversation per view-id [natural convesation scope]

[koenhandekyn]

i'm developping an app part of which is plain editing of instances in a database.

i have recently discovered natural conversation scope, that cleary should get into the documentation soon !!!

i now find myselve repeating the below part for every entity (i have a list page and an edit page for each)

<conversation
 name="addressList"
 parameter-name="addressListConversation"
 parameter-value="main"
 />

 <page
 view-id="/up/admin/addressList.xhtml"
 conversation="addressList"
 >
 <begin-conversation join="true" />
 </page>

 <conversation
 name="address"
 parameter-name="addressId"
 parameter-value="#{address.path}"
 />

 <page
 view-id="/up/admin/address.xhtml"
 conversation="address"
 >
 <begin-conversation join="true" />
 </page>

[from pages.xml]

TWO QUESTIONS

1. for the list pages it would be ideal if there were a conversation per open window (in the same window returning to the same page would restore the same conversation, a new window starts a new conversation). CAN THIS BE DONE ??? ( i have been reading several related post but didn't find an answer to this: ie the subject : WANNABE EXAMPLE NEEDS HELP GROWING UP )

something like ???

<conversation
 name="addressList"
 parameter-name="addressListConversation"
 parameter-value="#{windowId}"
 />

 <page
 view-id="/up/admin/*"
 conversation="addressList"
 >
 <begin-conversation join="true" />
 </page>

2. is there a shortcut possible not te repeat myselves?

something like

<conversation
 name="#{page}"
 parameter-name="#{page}Conversation"
 parameter-value="main"
 />

 <page
 view-id="/up/admin/*"
 conversation="#{page}"
 >
 <begin-conversation join="true" />
 </page>

[pmuir]

"koenhandekyn" wrote:
i'm developping an app part of which is plain editing of instances in a database.

i have recently discovered natural conversation scope, that cleary should get into the documentation soon !!!

This isn't an official feature until 2.0.1, and documented in 2.0.1 :)

2. is there a shortcut possible not te repeat myselves?

No, and I can't see a neat way of doing this.

[koenhandekyn]

i've posted a proposal in JIRA

in short i propose to match * in a page view expression to a variable, for example named page and than alow EL expression in other elements.

<page
view-id="/up/admin/*.xhtml"
conversation="%{page}Conversation"
>
..


an alternative which is maybe cleaner is to have a context variabele "view" which is a seam generated object representing the view.

<page
view-id="/up/admin/*.xhtml"
conversation="%{view.name}Conversation"
>
..


view having properties like
view.id (example /app/path/name.ext)
view.fullPath ( example http://host/app/path/name.ext)
view.name ( example name )