fileUpload, uploadData and keepalive

[someone88]

hi!

<f:view>
 <a4j:keepAlive beanName="bean.files"/>
 <h:form>
 <h:panelGrid columns="1">
 <h:panelGroup>
 <rich:fileUpload uploadData="#{bean.files}"
 fileUploadListener="#{bean.imagesListener}"
 maxFilesQuantity="#{bean.uploadsAvailable}"
 id="upload"
 immediateUpload="#{bean.autoUpload}"
 acceptedTypes="jpg, gif, png, bmp"
 allowFlash="#{bean.useFlash}">
 </rich:fileUpload>
 </h:panelGroup>
 <h:panelGroup>
 <a4j:commandLink action="#{bean.saveImages}" value="Save"/>
 </h:panelGroup>
 </h:panelGrid>
 </h:form>
</f:view>

and bean is

public class MyBean
{
 private ArrayList<UploadItem> files = new ArrayList<UploadItem>();
 //getters and setters and another declaration
public void saveImages()
 {
 for(UploadItem item:files)
 {
 //save images
 }

}

When file upload complete array contents all uploaded items, but when i press on commandLink and debug in saveImages files array size = 0.
I don't understand what wrong. I'm using <a4j:keepalive> but it's not work.
Sorry for my english. Thanks!!

[ilya_shaikovsky]

it seems better for me to use just uploadListener to manage uploaded files and then save them or remove according to your logic. look to demosite sample..

[someone88]

"ilya_shaikovsky" wrote:
it seems better for me to use just uploadListener to manage uploaded files and then save them or remove according to your logic. look to demosite sample..

before save image i want preview all images with a4j:mediaOutput. and just interesting why it's not work.