Further, you don't really need to define the Iterator, just return them.
public Iterator iterator(int first, int count) {
result = new ArrayList<PlatformDTO>();
if (requestFormModel != null) {
if (requestFormModel.getId() != null) {
request =
requestService.getRequest(requestFormModel.getId());
> result.add(request);
> return result.iterator();
>
> } else if (requestFormModel.getFileName() != null) {
> return
> requestService.findRequestByFileName(requestFormModel.getFileName()).iterator();
>
On Mon, Sep 28, 2009 at 9:08 AM, T Ames <[email protected]> wrote:
> I see several undefined objects:
>
> result
> requestFormModel
> it
>
> If these are defined at the class level, they must be serializable.
>
> If you have Logging set at Info, Wicket will give you the actual field that
> is not serializable, although from the error it looks like something to do
> with AbstractList
>
> Iterator objects are not serializable. I would look at how you are
> defining the "it" variable.
>
>
>
>
> On Mon, Sep 28, 2009 at 7:25 AM, Charles Moulliard
> <[email protected]>wrote:
>
>> Hi,
>>
>> I would like to know what is the best way to work with the method
>> iterator of DataProvider.
>>
>> I have created a class implementing IDataProvider. Depending of a
>> parameter, the DAO service called is not the same inside in the
>> iterator method. For some DAO services, a list is returned but for one
>> service, an object is returned instead of a list.
>>
>> If I try to create a ArrayList inside the iterator, the following
>> error is generated :
>>
>>
>> org.apache.wicket.util.io.SerializableChecker$WicketNotSerializableException:
>> Unable to serialize class: java.util.AbstractList$Itr
>> Field hierarchy is:
>> 0 [class=com.xpectis.x3s.fundbox.web.RequestPage, path=0]
>> private java.lang.Object
>> org.apache.wicket.MarkupContainer.children [class=[Ljava.lang.Object;]
>> java.lang.Object org.apache.wicket.Component.data[3]
>> [class=com.xpectis.x3s.fundbox.web.RequestPage$1, path=0:requestList]
>> private final
>> org.apache.wicket.markup.repeater.data.IDataProvider
>> org.apache.wicket.markup.repeater.data.DataViewBase.dataProvider
>> [class=com.xpectis.x3s.fundbox.web.data.RequestProvider]
>> private java.util.Iterator
>> com.xpectis.x3s.fundbox.web.data.RequestProvider.it
>> [class=java.util.AbstractList$Itr] <----- field that is not
>> serializable
>> at
>> org.apache.wicket.util.io.SerializableChecker.check(SerializableChecker.java:346)
>>
>> How can I avoid this issue ?
>>
>> Here is my code :
>>
>> public class RequestProvider implements IDataProvider {
>>
>> ...
>>
>> public Iterator iterator(int first, int count) {
>>
>> result = new ArrayList<PlatformDTO>();
>>
>> if (requestFormModel != null) {
>>
>> if (requestFormModel.getId() != null) {
>> request =
>> requestService.getRequest(requestFormModel.getId());
>> result.add(request);
>> it = result.iterator();
>>
>> } else if (requestFormModel.getFileName() != null)
>> {
>> it =
>> requestService.findRequestByFileName(requestFormModel.getFileName()).iterator();
>>
>> }
>>
>> Regards,
>>
>>
>> Charles Moulliard
>> Senior Enterprise Architect
>> Apache Camel Committer
>>
>> *****************************
>> blog : http://cmoulliard.blogspot.com
>>
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>>
>>
>
