the view doesnt keep the iterator, it just iterates over it once when it renders. iterators arent meant to be kept, they are throwaway objects.
-igor On 7/18/07, Ballist1c <[EMAIL PROTECTED]> wrote: > > > It IS very possible I am going about this from the completely wrong > angle... > > The gist of it is, that a whole bunch of users will be reading all the > entries from the same vector in an asynchronised manner. So what I thought > that each user would require their own Iterator to keep track of their > progress through the Vector ... > > The only actions I performed on the vector is adding to it. I am > thinking, > once the iterator is retrieved from getItemModels() does RefreshingView > store the iterator within itself for the duration that its being > displayed? > cause if that is the case, i am thinking i dont even NEED to be storing > the > iterator with each user! > > > > > igor.vaynberg wrote: > > > > On 7/18/07, Ballist1c <[EMAIL PROTECTED]> wrote: > >> > >> > >> Yep, I made some adjustments to code, to allow for any number of users > to > >> join a chatSession, rather then just 2. > >> > >> What I am doing is , the vector that I am using is within a particular > >> class > >> and the Iterators for that vector are actually stored within another > >> subclass which is stored within a hashmap within this class. > > > > > > w o w > > > > I got this working before with Iterators directly declared within the > > class, > >> but now that I have moved the iterators to a hashMap so I can store > >> multiple > >> iterators to the same Vector, it has gone nuts... with the same error:( > >> > >> Anyway, let me know what you think > > > > > > obviously whatever this thing is, another thread is modifying it, or > you > > are doing something elsewhere to modify it. > > > > what you should do is instead of returning an iterator directly first > copy > > the values into an array list and return an iterator to that. java 101. > > > > -igor > > > > > > > > > ---------------------------------------------------------------------------------- > >> chatRefreshingView = new RefreshingView("chatView", new > >> PropertyModel(new PropertyModel(ChatView.this.getJumbuckSession(), > >> "currentChatSession"), "chatEntries")) > >> { > >> protected Iterator getItemModels() > >> { > >> //i like cereal > >> chatViewItemsIterator = new > >> ModelIteratorAdapter(ChatView.this.getJumbuckSession > >> ().getCurrentChatSessionIterator()) > >> { > >> > >> protected IModel model(Object object) { > >> return new Model((Serializable) object); > >> } > >> }; > >> return chatViewItemsIterator; > >> } > >> protected void populateItem(Item item) > >> { > >> ChatViewItem chatViewItem = > getItem("chatViewItem"); > >> item.add(chatViewItem); > >> chatViewItem.setMyModels(); > >> } > >> }; > >> > >> add(chatRefreshingView); > >> chatRefreshingView.setOutputMarkupId(true); > >> > >> > >> > ------------------------------------------------------------------------------- > >> public void setMyModels() //for chatViewItem.setMyModels() above > >> { > >> > >> IModel chatViewItemModel = getParent().getModel(); > >> PropertyModel contentsModel = new > >> PropertyModel(chatViewItemModel, > >> "contents"); > >> > >> getAuthorChatImage().setModel(new ImagePathFromIdModel(new > >> PropertyModel(chatViewItemModel, "authorProfileId"))); > >> getContents().setModel(contentsModel); > >> } > >> > >> > >> > ---------------------------------------------------------------------------------- > >> > >> WicketMessage: Error attaching this container for rendering: > >> [MarkupContainer [Component id = chatDisplay, page = > >> jumbuck.ffweb.wicket.page.FFWeb, path = > >> 0:main_tabbed_panel:target_panel:tabbed_panel:target_panel: > >> chatDisplay.HotListTargetPanel$1, > >> isVisible = true, isVersioned = false]] > >> > >> Root cause: > >> > >> java.util.ConcurrentModificationException > >> at java.util.AbstractList$Itr.checkForComodification(AbstractList.java > >> :372) > >> at java.util.AbstractList$Itr.next(AbstractList.java:343) > >> at > >> org.apache.wicket.markup.repeater.util.ModelIteratorAdapter.next( > >> ModelIteratorAdapter.java:60) > >> at > >> org.apache.wicket.markup.repeater.DefaultItemReuseStrategy$1.next( > >> DefaultItemReuseStrategy.java:71) > >> at > >> org.apache.wicket.markup.repeater.RefreshingView.addItems( > >> RefreshingView.java:189) > >> at > >> org.apache.wicket.markup.repeater.RefreshingView.onBeforeRender( > >> RefreshingView.java:115) > >> at org.apache.wicket.Component.beforeRender(Component.java:846) > >> at > >> org.apache.wicket.MarkupContainer.onBeforeRenderChildren( > >> MarkupContainer.java:1449) > >> at org.apache.wicket.Component.beforeRender(Component.java:856) > >> at > >> org.apache.wicket.MarkupContainer.onBeforeRenderChildren( > >> MarkupContainer.java:1449) > >> at org.apache.wicket.Component.beforeRender(Component.java:856) > >> at > >> org.apache.wicket.MarkupContainer.onBeforeRenderChildren( > >> MarkupContainer.java:1449) > >> at org.apache.wicket.Component.beforeRender(Component.java:856) > >> at > >> org.apache.wicket.ajax.AjaxRequestTarget.respondComponent( > >> AjaxRequestTarget.java:757) > >> at > >> org.apache.wicket.ajax.AjaxRequestTarget.respondComponents( > >> AjaxRequestTarget.java:662) > >> at > >> org.apache.wicket.ajax.AjaxRequestTarget.respond(AjaxRequestTarget.java > >> :520) > >> at > >> org.apache.wicket.request.AbstractRequestCycleProcessor.respond( > >> AbstractRequestCycleProcessor.java:103) > >> at > >> org.apache.wicket.RequestCycle.processEventsAndRespond( > RequestCycle.java > >> :1037) > >> at org.apache.wicket.RequestCycle.step(RequestCycle.java:1107) > >> at org.apache.wicket.RequestCycle.steps(RequestCycle.java:1176) > >> at org.apache.wicket.RequestCycle.request(RequestCycle.java:499) > >> at org.apache.wicket.protocol.http.WicketFilter.doGet(WicketFilter.java > >> :257) > >> at > >> org.apache.wicket.protocol.http.WicketFilter.doFilter(WicketFilter.java > >> :127) > >> -- > >> View this message in context: > >> > http://www.nabble.com/java.util.ConcurrentModificationException-with-RefreshingView-%28AGAIN%21-%21-%21%21%29-tf4101508.html#a11663707 > >> Sent from the Wicket - User mailing list archive at Nabble.com. > >> > >> > >> > ------------------------------------------------------------------------- > >> This SF.net email is sponsored by DB2 Express > >> Download DB2 Express C - the FREE version of DB2 express and take > >> control of your XML. No limits. Just data. Click to get it now. > >> http://sourceforge.net/powerbar/db2/ > >> _______________________________________________ > >> Wicket-user mailing list > >> Wicket-user@lists.sourceforge.net > >> https://lists.sourceforge.net/lists/listinfo/wicket-user > >> > > > ------------------------------------------------------------------------- > > This SF.net email is sponsored by DB2 Express > > Download DB2 Express C - the FREE version of DB2 express and take > > control of your XML. No limits. Just data. Click to get it now. > > http://sourceforge.net/powerbar/db2/ > > _______________________________________________ > > Wicket-user mailing list > > Wicket-user@lists.sourceforge.net > > https://lists.sourceforge.net/lists/listinfo/wicket-user > > > > > > -- > View this message in context: > http://www.nabble.com/java.util.ConcurrentModificationException-with-RefreshingView-%28AGAIN%21-%21-%21%21%29-tf4101508.html#a11680094 > Sent from the Wicket - User mailing list archive at Nabble.com. > > > ------------------------------------------------------------------------- > This SF.net email is sponsored by DB2 Express > Download DB2 Express C - the FREE version of DB2 express and take > control of your XML. No limits. Just data. 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