[flexcoders] Re: LCDS: how to fetch the items from lazy collection

[zdenekmikan]

I was able to solve my problem with following async loop, but I wonder if there 
is some 
simpler solution.

private var itemArray:ArrayCollection
private var index:int;
private var count:int;
private var noIPE:Boolean;

public function execute(cgEvent:CairngormEvent):void
{
        count = itemArray.length;
        index = 0;
        noIPE = true;
        
        start();
}

private function start():void
{       
        try
        {
                trace("start: " + index);
                while((noIPE == true) && (index < count))
                {
                        processItem(null, itemArray.getItemAt(index) as 
ItemDTO);
                }
        }
        catch(ipe:ItemPendingError)
        {
                noIPE = false;
                trace("item pending error: " + index);
                ipe.addResponder(new ItemResponder(processItem, fetchError));
        }
}
        
private function fetchError(message:ErrorMessage):void
{
        trace("error fetching item: " + message.faultString);
}

private function processItem(data:Object, item:ItemDTO = null):void
{
        trace("processItem: " + index);
        if(item == null)
                item = itemArray.getItemAt(index) as ItemDTO;
        
        .....
        
        index++;
        if(index < count)
        {
                if(noIPE == false)
                {
                        noIPE = true;
                        start();
                }
        }
        else
        {
                finish();
        }
}


--- In flexcoders@yahoogroups.com, Zdenek Mikan <[EMAIL PROTECTED]> wrote:
>
> I have an ArrayCollection which is filled from the LCDS/Hibernate 
> destination with lazy=true. For display it is OK, but for export I need 
> to go through all items to send them to output. Is there any way how to 
> force fetch all items from the server?
> 
> BTW the sample in LCDS ES 2.6 Developer Guide on page 242-243 is wrong - 
> you will get the ipe exception on line with ipe.addResponder in catch 
> clause.
> 
> Zdenek M
>