Re: direct access to ArrayList elements by index possible?

[Mert Çalışkan]

the list itself should be managed. Your backing bean for backingBean is being managed in addition to this.
here is a snippet from faces-config.xml.

    <managed-bean>
        <managed-bean-name>backingBean</managed-bean-name>
        <managed-bean-class>yourpackage.BackingBean</managed-bean-class>
        <managed-bean-scope>request</managed-bean-scope>
    </managed-bean>
    <managed-bean>
        <managed-bean-name>list</managed-bean-name>
        <managed-bean-class>java.util.ArrayList</managed-bean-class>
        <managed-bean-scope>session</managed-bean-scope>
    </managed-bean>

Regards,

Mert

On 5/3/06, Philippe Lamote <[EMAIL PROTECTED]> wrote:

? It is a managed bean. (thought "backing bean" & "managed beans" were synonyms - aren't they?!)

Well, donno what goes wrong then, I'll do some more tests.

Thx,

Phil

On 03 May 2006, at 19:25, Mert Çalışkan wrote:

Yes Phil,

<h:inputText value="#{ backingBean.list[2]}" /> is right.

But be careful about the scope of the list. If you are using it for another pages make it a managed-bean.

Regards,

Mert

On 5/3/06, Philippe Lamote <[EMAIL PROTECTED]> wrote:

Well, that is very nice to know :-)

And what would be the proper syntax for doing this? 

The values don't seem to get updated in the backing bean, so I guess there's smth wrong with my syntax... (?)

Phil 

On 03 May 2006, at 18:26, Mert Çalışkan wrote:

yes it is possible..

On 5/3/06, Philippe Lamote <[EMAIL PROTECTED]> wrote:

Hi List,

Does anyone know whether it is possible to directly access the
elements of an instantiated ArrayList by their index?

So if I would have in my backing bean:

ArrayList<String> list = new ArrayList<String>()                // with e.g.
elements from index [0] to [4] having precise semantics & being
instantiated in the bean constructor

--> is there a way to do, on a page, stuff like:

<h:inputText value="#{backingBean.list [2]}" />

It would avoid having to create one dedicated proxy variable per
index and handling the synchronization between these two.

Thanks for tips,
Phil