Dynamic number of input types

[leezard]

Hi all again,

Now I'm trying to solve another JSF/Seam related problem and hope yopu will help me to do it :)

I have an Seam component defined as:

@Name("account")
class Account {
 private String id;
 private String name;
 private List<Limit> limits;

 // getters and setters here
}


class Limit {
 private String type;
 private Long value;

 // getters and setters here
}

Now my problem begins here: each account can have different limits number. Limits are system-wide configuration (e.g. you can have 4 different limit types defined and the you get a list with 4 items in Account instance). I can easily print all limit types and their input types using facelets <ui:repeat>:

<ui:repeat value="#{account.limits}" var="limit">
 <h:outputText value="limit.type"/>
 <h:inputText value="limit.value"/>
</ui:repeat>

But I'm affraid is't a bad solution. I want to submit form data together with limits data. Now I get NullPointerException on limits field in my action Bean. How can i properly get all the data? Do I need to use Limit as seam component also? Or do I have to use long running conversation somehow?

Thanks for replies.

[leezard]

ok, I've partially found a solution - long running conversations and jsf syntax like this:

 <h:outputText vallue="#{account.limits[0].type}"/>
 <h:inputText vallue="#{account.limits[0].value}"/>

But another thing is: how to iterate thorough this list in JSF to be able to use list indexes like 0, 1, 2 and so on? I can't use ui:repeat because it doesn't have such feature.

[mgrouch]

You could use t:dataList from Tomahawk

[ishabalov]

a4j:repeat rowKeyVar="xx" will do the trick.