okok.. more details here... i had summarize part of the code
yes... i was loading a huge records for a report ( eg: 1 year records )
Example
========
The data that will display is based on the T&C as below
1. every minutes for one logID had 1 record. Means 1 days = 1440 records (
60 min * 24 hours)
2. eg here : i need to loop for 10 LogID for one year . Mean total records =
1440 records *10*365
= 5256000 records ( let
said the fieldname is logID, userId,
datetime, total_in)
this 5256000 records will display using the dataView + dataProvider ==>
fine, it is no problem
beside, i will use JFreeChart to darw the TimeSeries Chart. ( avg vs min for
each LOG) for the above 5256000 records
When one pc run..fine, it is no problem. but once 3 pc run concurrently, the
page return java.lang.OutOfMemoryError: Java heap space.
code
===
public ThisMonthNetworkChartForm(String id, LOG log ) {
super(id);
dataProvider = new SimpleReportDataProvider(log,
periodCondition);
dataView = new DataView("table", dataProvider)
{
protected void populateItem(final Item item)
{
final LOG log = (LOG)item.getModelObject();
if(log.getDateTime()!= null){
item.add(new
Label("dateTime",String.valueOf(log.getDateTime())));
item.add(new
Label("logId",String.valueOf(log.getLogId())));
item.add(new Label("total_in",
String.valueOf(log.getTotal_in())));
}else{
item.add(new
Label("dateTime",""));
item.add(new Label("logId
",""));
item.add(new Label("total_in ",
""));
}
item.add(new AttributeModifier("class",
true, new
AbstractReadOnlyModel()
{
public Object
getObject(Component component)
{
return (item.getIndex()
% 2 == 1) ? "row0" : "row1";
}
}));
}//****populate item end here
};
dataView.setOutputMarkupId(true);
add(dataView);
final XYDataset dataset1 =
LogManager.createTimeSeriesDataset(log,periodCondition);
final JFreeChart chart =
ChartFactory.createTimeSeriesChart(
log.getLogID(),
"Time",
"Value",
dataset1,
true,
true,
false
);
JFreeChartImage images = (JFreeChartImage) new
JFreeChartImage("image",chart , 900, 250);
chart.setBackgroundPaint(new Color(237, 246,
253));//set the chart
background to light blue
add(images.setVisible(true));
}
}
thanks in advance. :-D
Matej Knopp-2 wrote:
>
> It's not possible to help you without knowing seeing more code. What
> are the items you are creating? It's probably the models itself that
> cause the outofmemory error, you are likely to be loading someting
> huge.
>
> -Matej
>
> On Dec 17, 2007 6:12 AM, kenixwong <[EMAIL PROTECTED]> wrote:
>>
>> hi, anyone can help ?
>>
>> i was using the Eclipse 3.2.2, jdk1.6.0, jetty 6.0.2, wicket 1.2.4. Once
>> i
>> loop a report page, the eclipse console and page return the error as
>> above.
>> How can i solve it ....
>>
>> I had tryed to reset the eclispe.ini
>> (http://bugs.sakaiproject.org/confluence/display/ARW/Eclipse+startup+memory+settings)
>> too.
>>
>>
>>
>> here is the error
>>
>> ...
>> ...
>> ...
>> at
>> wicket.extensions.markup.html.repeater.refreshing.RefreshingView$1.newItem(RefreshingView.java:108)
>> at
>> wicket.extensions.markup.html.repeater.refreshing.DefaultItemReuseStrategy$1.next(DefaultItemReuseStrategy.java:73)
>> at
>> wicket.extensions.markup.html.repeater.refreshing.RefreshingView.addItems(RefreshingView.java:191)
>> at
>> wicket.extensions.markup.html.repeater.refreshing.RefreshingView.internalOnAttach(RefreshingView.java:117)
>> at wicket.Component.internalAttach(Component.java:2579)
>> at
>> wicket.MarkupContainer.internalAttach(MarkupContainer.java:341)
>> at
>> wicket.MarkupContainer.internalAttach(MarkupContainer.java:354)
>> at
>> wicket.MarkupContainer.internalAttach(MarkupContainer.java:354)
>> at wicket.Page.renderPage(Page.java:383)
>> at
>> wicket.protocol.http.WebRequestCycle.redirectTo(WebRequestCycle.java:160)
>> at
>> wicket.request.target.component.PageRequestTarget.respond(PageRequestTarget.java:60)
>> at
>> wicket.request.compound.DefaultResponseStrategy.respond(DefaultResponseStrategy.java:49)
>> at
>> wicket.request.compound.AbstractCompoundRequestCycleProcessor.respond(AbstractCompoundRequestCycleProcessor.java:66)
>> at
>> wicket.RequestCycle.doProcessEventsAndRespond(RequestCycle.java:902)
>> at
>> wicket.RequestCycle.processEventsAndRespond(RequestCycle.java:929)
>> at wicket.RequestCycle.step(RequestCycle.java:1010)
>> at wicket.RequestCycle.steps(RequestCycle.java:1084)
>> at wicket.RequestCycle.request(RequestCycle.java:454)
>> at
>> wicket.protocol.http.WicketServlet.doGet(WicketServlet.java:219)
>> at javax.servlet.http.HttpServlet.service(HttpServlet.java:689)
>> at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
>> at
>> org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:459)
>> at
>> org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:360)
>> at
>> org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:231)
>> at
>> org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:629)
>> at
>> org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:453)
>>
>>
>> Any solution ??
>>
>>
>> thanks in advance..
>> --
>> View this message in context:
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>> Sent from the Wicket - User mailing list archive at Nabble.com.
>>
>>
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