[jboss-user] [JBoss Seam] - SFSB session scope with Factory method conversation scope: h
sorry, this is a long one...
I have a use case which may require two SFSB's for a facelet. The facelet has a
h:dataTable and a rich:modalPanel (which has a4j:form embedded in it). The main SFSB for
the dataTable's form was conversation scoped. I am using the @Factory and @DataModel
tag team annotations to outject the DataModel List for the dataTable in the facelet.
The second SFSB which handles form submissions from a rich:modalPanel was session scoped
b/c the popup form submissions are not immediately persisted to the DB tables. I was
injecting the second SFSB into the main SFSB (which I'm not sure is a good idea or not
with Seam apps).
So I decided to refactor this implementation and move all the logic/methods/variables from
the second SFSB into the main SFSB (idea being to have one SFSB per facelet).
I've tried different combinations of configurations with the @Factory annotation and
have found the following (as is basically explained on pg. 68 of the Seam reference pdf
for 2.0.0.GA):
Since now there is only one SFSB and it is session scoped (to keep track of the modalPanel
submitted form data until the main form is submitted), I needed a conversation or request
scoped Factory method. Otherwise, the factory method will only be called once per
session. There are multiple submit buttons (one per row) on the main form. So when user
submits a row for persistence, the Factory method needs to fire again before dataTable is
re-rendered so that the data is current.
So I tried the first style as below:
@Factory(value="customerList",scope=ScopeType.CONVERSATION)
| public List<Customer> getCustomerList() {
| return ... ;
| }
The problem with this solution is that I get
java.lang.NumberFormatException: For input string: "rowCount"
when I check for the List's rowCount in the facelet as below:
<h:dataTable value="#{customerList}" rendered="#{customerList != null
and customerList.rowCount > 0}">
Also, method not found for #{customerList.getRowIndex()}
I think the reason I'm having these problems is b/c the @DataModel is not being used
and therefore no outjection of a DataModel object that the JSF can use to render the
dataTable (i.e. a regular List does not have a rowCount property or getRowIndex() method).
I'm not sure I can even use a DataModel with this first style.
So I try the second style as follows:
@DataModel List<Customer> customerList;
|
| @Factory("customerList")
| public void initCustomerList() {
| customerList = ... ;
| }
The problem with this solution is that b/c the @Factory annotation can't have a
conversation scope when the method returns void, the initCustomerList() method will only
get executed once per session (and I need it to exec per request/conversation).
So what am I doing wrong and/or how can I solve this use case with a single facelet, a
single SFSB, and ...??? I think I tried PAGE scope with @DataModel and it didn't help
or work. From the Bauer talk it sounds like PAGE context is useful with Ajaxified Seam
apps.
I looked at the @Unwrap and manager component pattern as well but that forces the
annotated method to be called every time the context variable is referenced (I'm
assuming in the facelet???) So not sure if that's appropriate or not.
Sounds like if I can get rowCount of the List and getRowIndex() equivalent for the List, I
might be ok EXCEPT for I lose out on the @DataModelSelection and @DataModelSelectionIndex
for processing a clicked row in the dataTable (which in this case, the query is based on
two tables/entities).
Basically: how can I get this to work for my use case with @Factory and the @DataModel*
anntotations with one facelet and one SFSB???
Please help, I'm frustrated and confused... thx.
View the original post :
http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4103404#...
Reply to the post :
http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...